2 Commits

Author SHA1 Message Date
Jason Evans
1819ae581c Fix OOM-related regression in arena_tcache_fill_small().
Fix an OOM-related regression in arena_tcache_fill_small() that caused
cache corruption that would almost certainly expose the application to
undefined behavior, usually in the form of an allocation request
returning an already-allocated region, or somewhat less likely, a freed
region that had already been returned to the arena, thus making it
available to the arena for any purpose.

This regression was introduced by
9c43c13a35 (Reverse tcache fill order.),
and was present in all releases from 2.2.0 through 3.6.0.

This resolves #98.
2016-12-06 10:57:43 -08:00
Jason Evans
1ba886fb69 Fix the cactive statistic.
Fix the cactive statistic to decrease (rather than increase) when active
memory decreases.  This regression was introduced by
aa5113b1fd (Refactor overly large/complex
functions) and first released in 3.5.0.
2016-12-06 10:53:51 -08:00
157 changed files with 9917 additions and 23049 deletions

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@@ -1,3 +0,0 @@
begin-language: "Autoconf-without-aclocal-m4"
args: --no-cache
end-language: "Autoconf-without-aclocal-m4"

1
.gitattributes vendored
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@@ -1 +0,0 @@
* text=auto eol=lf

23
.gitignore vendored
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@@ -1,8 +1,8 @@
/*.gcov.*
/bin/jemalloc-config
/autom4te.cache/
/bin/jemalloc.sh
/bin/jeprof
/config.stamp
/config.log
@@ -15,8 +15,6 @@
/doc/jemalloc.html
/doc/jemalloc.3
/jemalloc.pc
/lib/
/Makefile
@@ -37,7 +35,6 @@
/include/jemalloc/jemalloc_protos.h
/include/jemalloc/jemalloc_protos_jet.h
/include/jemalloc/jemalloc_rename.h
/include/jemalloc/jemalloc_typedefs.h
/src/*.[od]
/src/*.gcda
@@ -73,19 +70,3 @@ test/include/test/jemalloc_test_defs.h
/test/unit/*.out
/VERSION
*.pdb
*.sdf
*.opendb
*.opensdf
*.cachefile
*.suo
*.user
*.sln.docstates
*.tmp
/msvc/Win32/
/msvc/x64/
/msvc/projects/*/*/Debug*/
/msvc/projects/*/*/Release*/
/msvc/projects/*/*/Win32/
/msvc/projects/*/*/x64/

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@@ -1,10 +1,10 @@
Unless otherwise specified, files in the jemalloc source distribution are
subject to the following license:
--------------------------------------------------------------------------------
Copyright (C) 2002-2015 Jason Evans <jasone@canonware.com>.
Copyright (C) 2002-2014 Jason Evans <jasone@canonware.com>.
All rights reserved.
Copyright (C) 2007-2012 Mozilla Foundation. All rights reserved.
Copyright (C) 2009-2015 Facebook, Inc. All rights reserved.
Copyright (C) 2009-2014 Facebook, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

335
ChangeLog
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@@ -1,335 +1,10 @@
Following are change highlights associated with official releases. Important
bug fixes are all mentioned, but some internal enhancements are omitted here for
brevity. Much more detail can be found in the git revision history:
bug fixes are all mentioned, but internal enhancements are omitted here for
brevity (even though they are more fun to write about). Much more detail can be
found in the git revision history:
https://github.com/jemalloc/jemalloc
* 4.1.0 (February 28, 2016)
This release is primarily about optimizations, but it also incorporates a lot
of portability-motivated refactoring and enhancements. Many people worked on
this release, to an extent that even with the omission here of minor changes
(see git revision history), and of the people who reported and diagnosed
issues, so much of the work was contributed that starting with this release,
changes are annotated with author credits to help reflect the collaborative
effort involved.
New features:
- Implement decay-based unused dirty page purging, a major optimization with
mallctl API impact. This is an alternative to the existing ratio-based
unused dirty page purging, and is intended to eventually become the sole
purging mechanism. New mallctls:
+ opt.purge
+ opt.decay_time
+ arena.<i>.decay
+ arena.<i>.decay_time
+ arenas.decay_time
+ stats.arenas.<i>.decay_time
(@jasone, @cevans87)
- Add --with-malloc-conf, which makes it possible to embed a default
options string during configuration. This was motivated by the desire to
specify --with-malloc-conf=purge:decay , since the default must remain
purge:ratio until the 5.0.0 release. (@jasone)
- Add MS Visual Studio 2015 support. (@rustyx, @yuslepukhin)
- Make *allocx() size class overflow behavior defined. The maximum
size class is now less than PTRDIFF_MAX to protect applications against
numerical overflow, and all allocation functions are guaranteed to indicate
errors rather than potentially crashing if the request size exceeds the
maximum size class. (@jasone)
- jeprof:
+ Add raw heap profile support. (@jasone)
+ Add --retain and --exclude for backtrace symbol filtering. (@jasone)
Optimizations:
- Optimize the fast path to combine various bootstrapping and configuration
checks and execute more streamlined code in the common case. (@interwq)
- Use linear scan for small bitmaps (used for small object tracking). In
addition to speeding up bitmap operations on 64-bit systems, this reduces
allocator metadata overhead by approximately 0.2%. (@djwatson)
- Separate arena_avail trees, which substantially speeds up run tree
operations. (@djwatson)
- Use memoization (boot-time-computed table) for run quantization. Separate
arena_avail trees reduced the importance of this optimization. (@jasone)
- Attempt mmap-based in-place huge reallocation. This can dramatically speed
up incremental huge reallocation. (@jasone)
Incompatible changes:
- Make opt.narenas unsigned rather than size_t. (@jasone)
Bug fixes:
- Fix stats.cactive accounting regression. (@rustyx, @jasone)
- Handle unaligned keys in hash(). This caused problems for some ARM systems.
(@jasone, Christopher Ferris)
- Refactor arenas array. In addition to fixing a fork-related deadlock, this
makes arena lookups faster and simpler. (@jasone)
- Move retained memory allocation out of the default chunk allocation
function, to a location that gets executed even if the application installs
a custom chunk allocation function. This resolves a virtual memory leak.
(@buchgr)
- Fix a potential tsd cleanup leak. (Christopher Ferris, @jasone)
- Fix run quantization. In practice this bug had no impact unless
applications requested memory with alignment exceeding one page.
(@jasone, @djwatson)
- Fix LinuxThreads-specific bootstrapping deadlock. (Cosmin Paraschiv)
- jeprof:
+ Don't discard curl options if timeout is not defined. (@djwatson)
+ Detect failed profile fetches. (@djwatson)
- Fix stats.arenas.<i>.{dss,lg_dirty_mult,decay_time,pactive,pdirty} for
--disable-stats case. (@jasone)
* 4.0.4 (October 24, 2015)
This bugfix release fixes another xallocx() regression. No other regressions
have come to light in over a month, so this is likely a good starting point
for people who prefer to wait for "dot one" releases with all the major issues
shaken out.
Bug fixes:
- Fix xallocx(..., MALLOCX_ZERO to zero the last full trailing page of large
allocations that have been randomly assigned an offset of 0 when
--enable-cache-oblivious configure option is enabled.
* 4.0.3 (September 24, 2015)
This bugfix release continues the trend of xallocx() and heap profiling fixes.
Bug fixes:
- Fix xallocx(..., MALLOCX_ZERO) to zero all trailing bytes of large
allocations when --enable-cache-oblivious configure option is enabled.
- Fix xallocx(..., MALLOCX_ZERO) to zero trailing bytes of huge allocations
when resizing from/to a size class that is not a multiple of the chunk size.
- Fix prof_tctx_dump_iter() to filter out nodes that were created after heap
profile dumping started.
- Work around a potentially bad thread-specific data initialization
interaction with NPTL (glibc's pthreads implementation).
* 4.0.2 (September 21, 2015)
This bugfix release addresses a few bugs specific to heap profiling.
Bug fixes:
- Fix ixallocx_prof_sample() to never modify nor create sampled small
allocations. xallocx() is in general incapable of moving small allocations,
so this fix removes buggy code without loss of generality.
- Fix irallocx_prof_sample() to always allocate large regions, even when
alignment is non-zero.
- Fix prof_alloc_rollback() to read tdata from thread-specific data rather
than dereferencing a potentially invalid tctx.
* 4.0.1 (September 15, 2015)
This is a bugfix release that is somewhat high risk due to the amount of
refactoring required to address deep xallocx() problems. As a side effect of
these fixes, xallocx() now tries harder to partially fulfill requests for
optional extra space. Note that a couple of minor heap profiling
optimizations are included, but these are better thought of as performance
fixes that were integral to disovering most of the other bugs.
Optimizations:
- Avoid a chunk metadata read in arena_prof_tctx_set(), since it is in the
fast path when heap profiling is enabled. Additionally, split a special
case out into arena_prof_tctx_reset(), which also avoids chunk metadata
reads.
- Optimize irallocx_prof() to optimistically update the sampler state. The
prior implementation appears to have been a holdover from when
rallocx()/xallocx() functionality was combined as rallocm().
Bug fixes:
- Fix TLS configuration such that it is enabled by default for platforms on
which it works correctly.
- Fix arenas_cache_cleanup() and arena_get_hard() to handle
allocation/deallocation within the application's thread-specific data
cleanup functions even after arenas_cache is torn down.
- Fix xallocx() bugs related to size+extra exceeding HUGE_MAXCLASS.
- Fix chunk purge hook calls for in-place huge shrinking reallocation to
specify the old chunk size rather than the new chunk size. This bug caused
no correctness issues for the default chunk purge function, but was
visible to custom functions set via the "arena.<i>.chunk_hooks" mallctl.
- Fix heap profiling bugs:
+ Fix heap profiling to distinguish among otherwise identical sample sites
with interposed resets (triggered via the "prof.reset" mallctl). This bug
could cause data structure corruption that would most likely result in a
segfault.
+ Fix irealloc_prof() to prof_alloc_rollback() on OOM.
+ Make one call to prof_active_get_unlocked() per allocation event, and use
the result throughout the relevant functions that handle an allocation
event. Also add a missing check in prof_realloc(). These fixes protect
allocation events against concurrent prof_active changes.
+ Fix ixallocx_prof() to pass usize_max and zero to ixallocx_prof_sample()
in the correct order.
+ Fix prof_realloc() to call prof_free_sampled_object() after calling
prof_malloc_sample_object(). Prior to this fix, if tctx and old_tctx were
the same, the tctx could have been prematurely destroyed.
- Fix portability bugs:
+ Don't bitshift by negative amounts when encoding/decoding run sizes in
chunk header maps. This affected systems with page sizes greater than 8
KiB.
+ Rename index_t to szind_t to avoid an existing type on Solaris.
+ Add JEMALLOC_CXX_THROW to the memalign() function prototype, in order to
match glibc and avoid compilation errors when including both
jemalloc/jemalloc.h and malloc.h in C++ code.
+ Don't assume that /bin/sh is appropriate when running size_classes.sh
during configuration.
+ Consider __sparcv9 a synonym for __sparc64__ when defining LG_QUANTUM.
+ Link tests to librt if it contains clock_gettime(2).
* 4.0.0 (August 17, 2015)
This version contains many speed and space optimizations, both minor and
major. The major themes are generalization, unification, and simplification.
Although many of these optimizations cause no visible behavior change, their
cumulative effect is substantial.
New features:
- Normalize size class spacing to be consistent across the complete size
range. By default there are four size classes per size doubling, but this
is now configurable via the --with-lg-size-class-group option. Also add the
--with-lg-page, --with-lg-page-sizes, --with-lg-quantum, and
--with-lg-tiny-min options, which can be used to tweak page and size class
settings. Impacts:
+ Worst case performance for incrementally growing/shrinking reallocation
is improved because there are far fewer size classes, and therefore
copying happens less often.
+ Internal fragmentation is limited to 20% for all but the smallest size
classes (those less than four times the quantum). (1B + 4 KiB)
and (1B + 4 MiB) previously suffered nearly 50% internal fragmentation.
+ Chunk fragmentation tends to be lower because there are fewer distinct run
sizes to pack.
- Add support for explicit tcaches. The "tcache.create", "tcache.flush", and
"tcache.destroy" mallctls control tcache lifetime and flushing, and the
MALLOCX_TCACHE(tc) and MALLOCX_TCACHE_NONE flags to the *allocx() API
control which tcache is used for each operation.
- Implement per thread heap profiling, as well as the ability to
enable/disable heap profiling on a per thread basis. Add the "prof.reset",
"prof.lg_sample", "thread.prof.name", "thread.prof.active",
"opt.prof_thread_active_init", "prof.thread_active_init", and
"thread.prof.active" mallctls.
- Add support for per arena application-specified chunk allocators, configured
via the "arena.<i>.chunk_hooks" mallctl.
- Refactor huge allocation to be managed by arenas, so that arenas now
function as general purpose independent allocators. This is important in
the context of user-specified chunk allocators, aside from the scalability
benefits. Related new statistics:
+ The "stats.arenas.<i>.huge.allocated", "stats.arenas.<i>.huge.nmalloc",
"stats.arenas.<i>.huge.ndalloc", and "stats.arenas.<i>.huge.nrequests"
mallctls provide high level per arena huge allocation statistics.
+ The "arenas.nhchunks", "arenas.hchunk.<i>.size",
"stats.arenas.<i>.hchunks.<j>.nmalloc",
"stats.arenas.<i>.hchunks.<j>.ndalloc",
"stats.arenas.<i>.hchunks.<j>.nrequests", and
"stats.arenas.<i>.hchunks.<j>.curhchunks" mallctls provide per size class
statistics.
- Add the 'util' column to malloc_stats_print() output, which reports the
proportion of available regions that are currently in use for each small
size class.
- Add "alloc" and "free" modes for for junk filling (see the "opt.junk"
mallctl), so that it is possible to separately enable junk filling for
allocation versus deallocation.
- Add the jemalloc-config script, which provides information about how
jemalloc was configured, and how to integrate it into application builds.
- Add metadata statistics, which are accessible via the "stats.metadata",
"stats.arenas.<i>.metadata.mapped", and
"stats.arenas.<i>.metadata.allocated" mallctls.
- Add the "stats.resident" mallctl, which reports the upper limit of
physically resident memory mapped by the allocator.
- Add per arena control over unused dirty page purging, via the
"arenas.lg_dirty_mult", "arena.<i>.lg_dirty_mult", and
"stats.arenas.<i>.lg_dirty_mult" mallctls.
- Add the "prof.gdump" mallctl, which makes it possible to toggle the gdump
feature on/off during program execution.
- Add sdallocx(), which implements sized deallocation. The primary
optimization over dallocx() is the removal of a metadata read, which often
suffers an L1 cache miss.
- Add missing header includes in jemalloc/jemalloc.h, so that applications
only have to #include <jemalloc/jemalloc.h>.
- Add support for additional platforms:
+ Bitrig
+ Cygwin
+ DragonFlyBSD
+ iOS
+ OpenBSD
+ OpenRISC/or1k
Optimizations:
- Maintain dirty runs in per arena LRUs rather than in per arena trees of
dirty-run-containing chunks. In practice this change significantly reduces
dirty page purging volume.
- Integrate whole chunks into the unused dirty page purging machinery. This
reduces the cost of repeated huge allocation/deallocation, because it
effectively introduces a cache of chunks.
- Split the arena chunk map into two separate arrays, in order to increase
cache locality for the frequently accessed bits.
- Move small run metadata out of runs, into arena chunk headers. This reduces
run fragmentation, smaller runs reduce external fragmentation for small size
classes, and packed (less uniformly aligned) metadata layout improves CPU
cache set distribution.
- Randomly distribute large allocation base pointer alignment relative to page
boundaries in order to more uniformly utilize CPU cache sets. This can be
disabled via the --disable-cache-oblivious configure option, and queried via
the "config.cache_oblivious" mallctl.
- Micro-optimize the fast paths for the public API functions.
- Refactor thread-specific data to reside in a single structure. This assures
that only a single TLS read is necessary per call into the public API.
- Implement in-place huge allocation growing and shrinking.
- Refactor rtree (radix tree for chunk lookups) to be lock-free, and make
additional optimizations that reduce maximum lookup depth to one or two
levels. This resolves what was a concurrency bottleneck for per arena huge
allocation, because a global data structure is critical for determining
which arenas own which huge allocations.
Incompatible changes:
- Replace --enable-cc-silence with --disable-cc-silence to suppress spurious
warnings by default.
- Assure that the constness of malloc_usable_size()'s return type matches that
of the system implementation.
- Change the heap profile dump format to support per thread heap profiling,
rename pprof to jeprof, and enhance it with the --thread=<n> option. As a
result, the bundled jeprof must now be used rather than the upstream
(gperftools) pprof.
- Disable "opt.prof_final" by default, in order to avoid atexit(3), which can
internally deadlock on some platforms.
- Change the "arenas.nlruns" mallctl type from size_t to unsigned.
- Replace the "stats.arenas.<i>.bins.<j>.allocated" mallctl with
"stats.arenas.<i>.bins.<j>.curregs".
- Ignore MALLOC_CONF in set{uid,gid,cap} binaries.
- Ignore MALLOCX_ARENA(a) in dallocx(), in favor of using the
MALLOCX_TCACHE(tc) and MALLOCX_TCACHE_NONE flags to control tcache usage.
Removed features:
- Remove the *allocm() API, which is superseded by the *allocx() API.
- Remove the --enable-dss options, and make dss non-optional on all platforms
which support sbrk(2).
- Remove the "arenas.purge" mallctl, which was obsoleted by the
"arena.<i>.purge" mallctl in 3.1.0.
- Remove the unnecessary "opt.valgrind" mallctl; jemalloc automatically
detects whether it is running inside Valgrind.
- Remove the "stats.huge.allocated", "stats.huge.nmalloc", and
"stats.huge.ndalloc" mallctls.
- Remove the --enable-mremap option.
- Remove the "stats.chunks.current", "stats.chunks.total", and
"stats.chunks.high" mallctls.
Bug fixes:
- Fix the cactive statistic to decrease (rather than increase) when active
memory decreases. This regression was first released in 3.5.0.
- Fix OOM handling in memalign() and valloc(). A variant of this bug existed
in all releases since 2.0.0, which introduced these functions.
- Fix an OOM-related regression in arena_tcache_fill_small(), which could
cause cache corruption on OOM. This regression was present in all releases
from 2.2.0 through 3.6.0.
- Fix size class overflow handling for malloc(), posix_memalign(), memalign(),
calloc(), and realloc() when profiling is enabled.
- Fix the "arena.<i>.dss" mallctl to return an error if "primary" or
"secondary" precedence is specified, but sbrk(2) is not supported.
- Fix fallback lg_floor() implementations to handle extremely large inputs.
- Ensure the default purgeable zone is after the default zone on OS X.
- Fix latent bugs in atomic_*().
- Fix the "arena.<i>.dss" mallctl to handle read-only calls.
- Fix tls_model configuration to enable the initial-exec model when possible.
- Mark malloc_conf as a weak symbol so that the application can override it.
- Correctly detect glibc's adaptive pthread mutexes.
- Fix the --without-export configure option.
* 3.6.0 (March 31, 2014)
This version contains a critical bug fix for a regression present in 3.5.0 and
@@ -346,7 +21,7 @@ brevity. Much more detail can be found in the git revision history:
backtracing to be reliable.
- Use dss allocation precedence for huge allocations as well as small/large
allocations.
- Fix test assertion failure message formatting. This bug did not manifest on
- Fix test assertion failure message formatting. This bug did not manifect on
x86_64 systems because of implementation subtleties in va_list.
- Fix inconsequential test failures for hash and SFMT code.
@@ -841,7 +516,7 @@ brevity. Much more detail can be found in the git revision history:
- Make it possible for the application to manually flush a thread's cache, via
the "tcache.flush" mallctl.
- Base maximum dirty page count on proportion of active memory.
- Compute various additional run-time statistics, including per size class
- Compute various addtional run-time statistics, including per size class
statistics for large objects.
- Expose malloc_stats_print(), which can be called repeatedly by the
application.

156
INSTALL
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@@ -1,23 +1,10 @@
Building and installing a packaged release of jemalloc can be as simple as
typing the following while in the root directory of the source tree:
Building and installing jemalloc can be as simple as typing the following while
in the root directory of the source tree:
./configure
make
make install
If building from unpackaged developer sources, the simplest command sequence
that might work is:
./autogen.sh
make dist
make
make install
Note that documentation is not built by the default target because doing so
would create a dependency on xsltproc in packaged releases, hence the
requirement to either run 'make dist' or avoid installing docs via the various
install_* targets documented below.
=== Advanced configuration =====================================================
The 'configure' script supports numerous options that allow control of which
@@ -69,7 +56,7 @@ any of the following arguments (not a definitive list) to 'configure':
replace the "malloc", "calloc", etc. symbols.
--without-export
Don't export public APIs. This can be useful when building jemalloc as a
Don't export public APIs. This can be useful when building jemalloc as a
static library, or to avoid exporting public APIs when using the zone
allocator on OSX.
@@ -84,18 +71,10 @@ any of the following arguments (not a definitive list) to 'configure':
versions of jemalloc can coexist in the same installation directory. For
example, libjemalloc.so.0 becomes libjemalloc<suffix>.so.0.
--with-malloc-conf=<malloc_conf>
Embed <malloc_conf> as a run-time options string that is processed prior to
the malloc_conf global variable, the /etc/malloc.conf symlink, and the
MALLOC_CONF environment variable. For example, to change the default chunk
size to 256 KiB:
--with-malloc-conf=lg_chunk:18
--disable-cc-silence
Disable code that silences non-useful compiler warnings. This is mainly
useful during development when auditing the set of warnings that are being
silenced.
--enable-cc-silence
Enable code that silences non-useful compiler warnings. This is helpful
when trying to tell serious warnings from those due to compiler
limitations, but it potentially incurs a performance penalty.
--enable-debug
Enable assertions and validation code. This incurs a substantial
@@ -115,15 +94,15 @@ any of the following arguments (not a definitive list) to 'configure':
there are interactions between the various coverage targets, so it is
usually advisable to run 'make clean' between repeated code coverage runs.
--enable-ivsalloc
Enable validation code, which verifies that pointers reside within
jemalloc-owned chunks before dereferencing them. This incurs a substantial
performance hit.
--disable-stats
Disable statistics gathering functionality. See the "opt.stats_print"
option documentation for usage details.
--enable-ivsalloc
Enable validation code, which verifies that pointers reside within
jemalloc-owned chunks before dereferencing them. This incurs a minor
performance hit.
--enable-prof
Enable heap profiling and leak detection functionality. See the "opt.prof"
option documentation for usage details. When enabled, there are several
@@ -153,6 +132,12 @@ any of the following arguments (not a definitive list) to 'configure':
released in bulk, thus reducing the total number of mutex operations. See
the "opt.tcache" option for usage details.
--enable-mremap
Enable huge realloc() via mremap(2). mremap() is disabled by default
because the flavor used is specific to Linux, which has a quirk in its
virtual memory allocation algorithm that causes semi-permanent VM map holes
under normal jemalloc operation.
--disable-munmap
Disable virtual memory deallocation via munmap(2); instead keep track of
the virtual memory for later use. munmap() is disabled by default (i.e.
@@ -160,6 +145,10 @@ any of the following arguments (not a definitive list) to 'configure':
memory allocation algorithm that causes semi-permanent VM map holes under
normal jemalloc operation.
--enable-dss
Enable support for page allocation/deallocation via sbrk(2), in addition to
mmap(2).
--disable-fill
Disable support for junk/zero filling of memory, quarantine, and redzones.
See the "opt.junk", "opt.zero", "opt.quarantine", and "opt.redzone" option
@@ -168,8 +157,11 @@ any of the following arguments (not a definitive list) to 'configure':
--disable-valgrind
Disable support for Valgrind.
--disable-experimental
Disable support for the experimental API (*allocm()).
--disable-zone-allocator
Disable zone allocator for Darwin. This means jemalloc won't be hooked as
Disable zone allocator for Darwin. This means jemalloc won't be hooked as
the default allocator on OSX/iOS.
--enable-utrace
@@ -193,106 +185,10 @@ any of the following arguments (not a definitive list) to 'configure':
thread-local variables via the __thread keyword. If TLS is available,
jemalloc uses it for several purposes.
--disable-cache-oblivious
Disable cache-oblivious large allocation alignment for large allocation
requests with no alignment constraints. If this feature is disabled, all
large allocations are page-aligned as an implementation artifact, which can
severely harm CPU cache utilization. However, the cache-oblivious layout
comes at the cost of one extra page per large allocation, which in the
most extreme case increases physical memory usage for the 16 KiB size class
to 20 KiB.
--with-xslroot=<path>
Specify where to find DocBook XSL stylesheets when building the
documentation.
--with-lg-page=<lg-page>
Specify the base 2 log of the system page size. This option is only useful
when cross compiling, since the configure script automatically determines
the host's page size by default.
--with-lg-page-sizes=<lg-page-sizes>
Specify the comma-separated base 2 logs of the page sizes to support. This
option may be useful when cross-compiling in combination with
--with-lg-page, but its primary use case is for integration with FreeBSD's
libc, wherein jemalloc is embedded.
--with-lg-size-class-group=<lg-size-class-group>
Specify the base 2 log of how many size classes to use for each doubling in
size. By default jemalloc uses <lg-size-class-group>=2, which results in
e.g. the following size classes:
[...], 64,
80, 96, 112, 128,
160, [...]
<lg-size-class-group>=3 results in e.g. the following size classes:
[...], 64,
72, 80, 88, 96, 104, 112, 120, 128,
144, [...]
The minimal <lg-size-class-group>=0 causes jemalloc to only provide size
classes that are powers of 2:
[...],
64,
128,
256,
[...]
An implementation detail currently limits the total number of small size
classes to 255, and a compilation error will result if the
<lg-size-class-group> you specify cannot be supported. The limit is
roughly <lg-size-class-group>=4, depending on page size.
--with-lg-quantum=<lg-quantum>
Specify the base 2 log of the minimum allocation alignment. jemalloc needs
to know the minimum alignment that meets the following C standard
requirement (quoted from the April 12, 2011 draft of the C11 standard):
The pointer returned if the allocation succeeds is suitably aligned so
that it may be assigned to a pointer to any type of object with a
fundamental alignment requirement and then used to access such an object
or an array of such objects in the space allocated [...]
This setting is architecture-specific, and although jemalloc includes known
safe values for the most commonly used modern architectures, there is a
wrinkle related to GNU libc (glibc) that may impact your choice of
<lg-quantum>. On most modern architectures, this mandates 16-byte alignment
(<lg-quantum>=4), but the glibc developers chose not to meet this
requirement for performance reasons. An old discussion can be found at
https://sourceware.org/bugzilla/show_bug.cgi?id=206 . Unlike glibc,
jemalloc does follow the C standard by default (caveat: jemalloc
technically cheats if --with-lg-tiny-min is smaller than
--with-lg-quantum), but the fact that Linux systems already work around
this allocator noncompliance means that it is generally safe in practice to
let jemalloc's minimum alignment follow glibc's lead. If you specify
--with-lg-quantum=3 during configuration, jemalloc will provide additional
size classes that are not 16-byte-aligned (24, 40, and 56, assuming
--with-lg-size-class-group=2).
--with-lg-tiny-min=<lg-tiny-min>
Specify the base 2 log of the minimum tiny size class to support. Tiny
size classes are powers of 2 less than the quantum, and are only
incorporated if <lg-tiny-min> is less than <lg-quantum> (see
--with-lg-quantum). Tiny size classes technically violate the C standard
requirement for minimum alignment, and crashes could conceivably result if
the compiler were to generate instructions that made alignment assumptions,
both because illegal instruction traps could result, and because accesses
could straddle page boundaries and cause segmentation faults due to
accessing unmapped addresses.
The default of <lg-tiny-min>=3 works well in practice even on architectures
that technically require 16-byte alignment, probably for the same reason
--with-lg-quantum=3 works. Smaller tiny size classes can, and will, cause
crashes (see https://bugzilla.mozilla.org/show_bug.cgi?id=691003 for an
example).
This option is rarely useful, and is mainly provided as documentation of a
subtle implementation detail. If you do use this option, specify a
value in [3, ..., <lg-quantum>].
The following environment variables (not a definitive list) impact configure's
behavior:

View File

@@ -28,7 +28,6 @@ CFLAGS := @CFLAGS@
LDFLAGS := @LDFLAGS@
EXTRA_LDFLAGS := @EXTRA_LDFLAGS@
LIBS := @LIBS@
TESTLIBS := @TESTLIBS@
RPATH_EXTRA := @RPATH_EXTRA@
SO := @so@
IMPORTLIB := @importlib@
@@ -43,16 +42,14 @@ XSLTPROC := @XSLTPROC@
AUTOCONF := @AUTOCONF@
_RPATH = @RPATH@
RPATH = $(if $(1),$(call _RPATH,$(1)))
cfghdrs_in := $(addprefix $(srcroot),@cfghdrs_in@)
cfghdrs_in := @cfghdrs_in@
cfghdrs_out := @cfghdrs_out@
cfgoutputs_in := $(addprefix $(srcroot),@cfgoutputs_in@)
cfgoutputs_in := @cfgoutputs_in@
cfgoutputs_out := @cfgoutputs_out@
enable_autogen := @enable_autogen@
enable_code_coverage := @enable_code_coverage@
enable_prof := @enable_prof@
enable_valgrind := @enable_valgrind@
enable_experimental := @enable_experimental@
enable_zone_allocator := @enable_zone_allocator@
MALLOC_CONF := @JEMALLOC_CPREFIX@MALLOC_CONF
DSO_LDFLAGS = @DSO_LDFLAGS@
SOREV = @SOREV@
PIC_CFLAGS = @PIC_CFLAGS@
@@ -76,37 +73,16 @@ endif
LIBJEMALLOC := $(LIBPREFIX)jemalloc$(install_suffix)
# Lists of files.
BINS := $(objroot)bin/jemalloc-config $(objroot)bin/jemalloc.sh $(objroot)bin/jeprof
BINS := $(srcroot)bin/pprof $(objroot)bin/jemalloc.sh
C_HDRS := $(objroot)include/jemalloc/jemalloc$(install_suffix).h
C_SRCS := $(srcroot)src/jemalloc.c \
$(srcroot)src/arena.c \
$(srcroot)src/atomic.c \
$(srcroot)src/base.c \
$(srcroot)src/bitmap.c \
$(srcroot)src/chunk.c \
$(srcroot)src/chunk_dss.c \
$(srcroot)src/chunk_mmap.c \
$(srcroot)src/ckh.c \
$(srcroot)src/ctl.c \
$(srcroot)src/extent.c \
$(srcroot)src/hash.c \
$(srcroot)src/huge.c \
$(srcroot)src/mb.c \
$(srcroot)src/mutex.c \
$(srcroot)src/nstime.c \
$(srcroot)src/pages.c \
$(srcroot)src/prng.c \
$(srcroot)src/prof.c \
$(srcroot)src/quarantine.c \
$(srcroot)src/rtree.c \
$(srcroot)src/stats.c \
$(srcroot)src/tcache.c \
$(srcroot)src/ticker.c \
$(srcroot)src/tsd.c \
$(srcroot)src/util.c
ifeq ($(enable_valgrind), 1)
C_SRCS += $(srcroot)src/valgrind.c
endif
C_SRCS := $(srcroot)src/jemalloc.c $(srcroot)src/arena.c \
$(srcroot)src/atomic.c $(srcroot)src/base.c $(srcroot)src/bitmap.c \
$(srcroot)src/chunk.c $(srcroot)src/chunk_dss.c \
$(srcroot)src/chunk_mmap.c $(srcroot)src/ckh.c $(srcroot)src/ctl.c \
$(srcroot)src/extent.c $(srcroot)src/hash.c $(srcroot)src/huge.c \
$(srcroot)src/mb.c $(srcroot)src/mutex.c $(srcroot)src/prof.c \
$(srcroot)src/quarantine.c $(srcroot)src/rtree.c $(srcroot)src/stats.c \
$(srcroot)src/tcache.c $(srcroot)src/util.c $(srcroot)src/tsd.c
ifeq ($(enable_zone_allocator), 1)
C_SRCS += $(srcroot)src/zone.c
endif
@@ -122,66 +98,53 @@ DSOS := $(objroot)lib/$(LIBJEMALLOC).$(SOREV)
ifneq ($(SOREV),$(SO))
DSOS += $(objroot)lib/$(LIBJEMALLOC).$(SO)
endif
PC := $(objroot)jemalloc.pc
MAN3 := $(objroot)doc/jemalloc$(install_suffix).3
DOCS_XML := $(objroot)doc/jemalloc$(install_suffix).xml
DOCS_HTML := $(DOCS_XML:$(objroot)%.xml=$(objroot)%.html)
DOCS_MAN3 := $(DOCS_XML:$(objroot)%.xml=$(objroot)%.3)
DOCS_HTML := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.html)
DOCS_MAN3 := $(DOCS_XML:$(objroot)%.xml=$(srcroot)%.3)
DOCS := $(DOCS_HTML) $(DOCS_MAN3)
C_TESTLIB_SRCS := $(srcroot)test/src/btalloc.c $(srcroot)test/src/btalloc_0.c \
$(srcroot)test/src/btalloc_1.c $(srcroot)test/src/math.c \
$(srcroot)test/src/mtx.c $(srcroot)test/src/mq.c \
C_TESTLIB_SRCS := $(srcroot)test/src/math.c $(srcroot)test/src/mtx.c \
$(srcroot)test/src/SFMT.c $(srcroot)test/src/test.c \
$(srcroot)test/src/thd.c $(srcroot)test/src/timer.c
C_UTIL_INTEGRATION_SRCS := $(srcroot)src/nstime.c $(srcroot)src/util.c
TESTS_UNIT := $(srcroot)test/unit/atomic.c \
$(srcroot)test/unit/bitmap.c \
$(srcroot)test/src/thd.c
C_UTIL_INTEGRATION_SRCS := $(srcroot)src/util.c
TESTS_UNIT := $(srcroot)test/unit/bitmap.c \
$(srcroot)test/unit/ckh.c \
$(srcroot)test/unit/decay.c \
$(srcroot)test/unit/hash.c \
$(srcroot)test/unit/junk.c \
$(srcroot)test/unit/junk_alloc.c \
$(srcroot)test/unit/junk_free.c \
$(srcroot)test/unit/lg_chunk.c \
$(srcroot)test/unit/mallctl.c \
$(srcroot)test/unit/math.c \
$(srcroot)test/unit/mq.c \
$(srcroot)test/unit/mtx.c \
$(srcroot)test/unit/prng.c \
$(srcroot)test/unit/prof_accum.c \
$(srcroot)test/unit/prof_active.c \
$(srcroot)test/unit/prof_gdump.c \
$(srcroot)test/unit/prof_idump.c \
$(srcroot)test/unit/prof_reset.c \
$(srcroot)test/unit/prof_thread_name.c \
$(srcroot)test/unit/ql.c \
$(srcroot)test/unit/qr.c \
$(srcroot)test/unit/quarantine.c \
$(srcroot)test/unit/rb.c \
$(srcroot)test/unit/rtree.c \
$(srcroot)test/unit/run_quantize.c \
$(srcroot)test/unit/SFMT.c \
$(srcroot)test/unit/size_classes.c \
$(srcroot)test/unit/smoothstep.c \
$(srcroot)test/unit/stats.c \
$(srcroot)test/unit/ticker.c \
$(srcroot)test/unit/nstime.c \
$(srcroot)test/unit/tsd.c \
$(srcroot)test/unit/util.c \
$(srcroot)test/unit/zero.c
TESTS_UNIT_AUX := $(srcroot)test/unit/prof_accum_a.c \
$(srcroot)test/unit/prof_accum_b.c
TESTS_INTEGRATION := $(srcroot)test/integration/aligned_alloc.c \
$(srcroot)test/integration/allocated.c \
$(srcroot)test/integration/sdallocx.c \
$(srcroot)test/integration/mallocx.c \
$(srcroot)test/integration/MALLOCX_ARENA.c \
$(srcroot)test/integration/overflow.c \
$(srcroot)test/integration/mremap.c \
$(srcroot)test/integration/posix_memalign.c \
$(srcroot)test/integration/rallocx.c \
$(srcroot)test/integration/thread_arena.c \
$(srcroot)test/integration/thread_tcache_enabled.c \
$(srcroot)test/integration/xallocx.c \
$(srcroot)test/integration/chunk.c
TESTS_STRESS := $(srcroot)test/stress/microbench.c
$(srcroot)test/integration/xallocx.c
ifeq ($(enable_experimental), 1)
TESTS_INTEGRATION += $(srcroot)test/integration/allocm.c \
$(srcroot)test/integration/MALLOCX_ARENA.c \
$(srcroot)test/integration/rallocm.c
endif
TESTS_STRESS :=
TESTS := $(TESTS_UNIT) $(TESTS_INTEGRATION) $(TESTS_STRESS)
C_OBJS := $(C_SRCS:$(srcroot)%.c=$(objroot)%.$(O))
@@ -194,9 +157,10 @@ C_TESTLIB_STRESS_OBJS := $(C_TESTLIB_SRCS:$(srcroot)%.c=$(objroot)%.stress.$(O))
C_TESTLIB_OBJS := $(C_TESTLIB_UNIT_OBJS) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_INTEGRATION_OBJS) $(C_TESTLIB_STRESS_OBJS)
TESTS_UNIT_OBJS := $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_UNIT_AUX_OBJS := $(TESTS_UNIT_AUX:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_INTEGRATION_OBJS := $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_STRESS_OBJS := $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%.$(O))
TESTS_OBJS := $(TESTS_UNIT_OBJS) $(TESTS_INTEGRATION_OBJS) $(TESTS_STRESS_OBJS)
TESTS_OBJS := $(TESTS_UNIT_OBJS) $(TESTS_UNIT_AUX_OBJS) $(TESTS_INTEGRATION_OBJS) $(TESTS_STRESS_OBJS)
.PHONY: all dist build_doc_html build_doc_man build_doc
.PHONY: install_bin install_include install_lib
@@ -210,10 +174,10 @@ all: build_lib
dist: build_doc
$(objroot)doc/%.html : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/html.xsl
$(srcroot)doc/%.html : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/html.xsl
$(XSLTPROC) -o $@ $(objroot)doc/html.xsl $<
$(objroot)doc/%.3 : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/manpages.xsl
$(srcroot)doc/%.3 : $(objroot)doc/%.xml $(srcroot)doc/stylesheet.xsl $(objroot)doc/manpages.xsl
$(XSLTPROC) -o $@ $(objroot)doc/manpages.xsl $<
build_doc_html: $(DOCS_HTML)
@@ -245,12 +209,18 @@ $(C_TESTLIB_STRESS_OBJS): $(objroot)test/src/%.stress.$(O): $(srcroot)test/src/%
$(C_TESTLIB_STRESS_OBJS): CPPFLAGS += -DJEMALLOC_STRESS_TEST -DJEMALLOC_STRESS_TESTLIB
$(C_TESTLIB_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include
$(TESTS_UNIT_OBJS): CPPFLAGS += -DJEMALLOC_UNIT_TEST
$(TESTS_UNIT_AUX_OBJS): CPPFLAGS += -DJEMALLOC_UNIT_TEST
define make-unit-link-dep
$(1): TESTS_UNIT_LINK_OBJS += $(2)
$(1): $(2)
endef
$(foreach test, $(TESTS_UNIT:$(srcroot)test/unit/%.c=$(objroot)test/unit/%$(EXE)), $(eval $(call make-unit-link-dep,$(test),$(filter $(test:%=%_a.$(O)) $(test:%=%_b.$(O)),$(TESTS_UNIT_AUX_OBJS)))))
$(TESTS_INTEGRATION_OBJS): CPPFLAGS += -DJEMALLOC_INTEGRATION_TEST
$(TESTS_STRESS_OBJS): CPPFLAGS += -DJEMALLOC_STRESS_TEST
$(TESTS_OBJS): $(objroot)test/%.$(O): $(srcroot)test/%.c
$(TESTS_OBJS): CPPFLAGS += -I$(srcroot)test/include -I$(objroot)test/include
ifneq ($(IMPORTLIB),$(SO))
$(C_OBJS) $(C_JET_OBJS): CPPFLAGS += -DDLLEXPORT
$(C_OBJS): CPPFLAGS += -DDLLEXPORT
endif
ifndef CC_MM
@@ -259,7 +229,7 @@ HEADER_DIRS = $(srcroot)include/jemalloc/internal \
$(objroot)include/jemalloc $(objroot)include/jemalloc/internal
HEADERS = $(wildcard $(foreach dir,$(HEADER_DIRS),$(dir)/*.h))
$(C_OBJS) $(C_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): $(HEADERS)
$(TESTS_OBJS): $(objroot)test/include/test/jemalloc_test.h
$(TESTS_OBJS): $(objroot)test/unit/jemalloc_test.h
endif
$(C_OBJS) $(C_PIC_OBJS) $(C_JET_OBJS) $(C_TESTLIB_OBJS) $(TESTS_OBJS): %.$(O):
@@ -289,15 +259,15 @@ $(STATIC_LIBS):
$(objroot)test/unit/%$(EXE): $(objroot)test/unit/%.$(O) $(TESTS_UNIT_LINK_OBJS) $(C_JET_OBJS) $(C_TESTLIB_UNIT_OBJS)
@mkdir -p $(@D)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(LDFLAGS) $(filter-out -lm,$(LIBS)) -lm $(TESTLIBS) $(EXTRA_LDFLAGS)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(LDFLAGS) $(filter-out -lm,$(LIBS)) -lm $(EXTRA_LDFLAGS)
$(objroot)test/integration/%$(EXE): $(objroot)test/integration/%.$(O) $(C_TESTLIB_INTEGRATION_OBJS) $(C_UTIL_INTEGRATION_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB)
@mkdir -p $(@D)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(LDFLAGS) $(filter-out -lm,$(filter -lpthread,$(LIBS))) -lm $(TESTLIBS) $(EXTRA_LDFLAGS)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(LDFLAGS) $(filter-out -lm,$(filter -lpthread,$(LIBS))) -lm $(EXTRA_LDFLAGS)
$(objroot)test/stress/%$(EXE): $(objroot)test/stress/%.$(O) $(C_JET_OBJS) $(C_TESTLIB_STRESS_OBJS) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB)
@mkdir -p $(@D)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(LDFLAGS) $(filter-out -lm,$(LIBS)) -lm $(TESTLIBS) $(EXTRA_LDFLAGS)
$(CC) $(LDTARGET) $(filter %.$(O),$^) $(call RPATH,$(objroot)lib) $(objroot)lib/$(LIBJEMALLOC).$(IMPORTLIB) $(LDFLAGS) $(filter-out -lm,$(LIBS)) -lm $(EXTRA_LDFLAGS)
build_lib_shared: $(DSOS)
build_lib_static: $(STATIC_LIBS)
@@ -331,14 +301,7 @@ install_lib_static: $(STATIC_LIBS)
install -m 755 $$l $(LIBDIR); \
done
install_lib_pc: $(PC)
install -d $(LIBDIR)/pkgconfig
@for l in $(PC); do \
echo "install -m 644 $$l $(LIBDIR)/pkgconfig"; \
install -m 644 $$l $(LIBDIR)/pkgconfig; \
done
install_lib: install_lib_shared install_lib_static install_lib_pc
install_lib: install_lib_shared install_lib_static
install_doc_html:
install -d $(DATADIR)/doc/jemalloc$(install_suffix)
@@ -367,27 +330,18 @@ check_unit_dir:
@mkdir -p $(objroot)test/unit
check_integration_dir:
@mkdir -p $(objroot)test/integration
stress_dir:
check_stress_dir:
@mkdir -p $(objroot)test/stress
check_dir: check_unit_dir check_integration_dir
check_dir: check_unit_dir check_integration_dir check_stress_dir
check_unit: tests_unit check_unit_dir
$(MALLOC_CONF)="purge:ratio" $(SHELL) $(objroot)test/test.sh $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%)
$(MALLOC_CONF)="purge:decay" $(SHELL) $(objroot)test/test.sh $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%)
check_integration_prof: tests_integration check_integration_dir
ifeq ($(enable_prof), 1)
$(MALLOC_CONF)="prof:true" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
$(MALLOC_CONF)="prof:true,prof_active:false" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
endif
check_integration_decay: tests_integration check_integration_dir
$(MALLOC_CONF)="purge:decay,decay_time:-1" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
$(MALLOC_CONF)="purge:decay,decay_time:0" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
$(MALLOC_CONF)="purge:decay" $(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
$(SHELL) $(objroot)test/test.sh $(TESTS_UNIT:$(srcroot)%.c=$(objroot)%)
check_integration: tests_integration check_integration_dir
$(SHELL) $(objroot)test/test.sh $(TESTS_INTEGRATION:$(srcroot)%.c=$(objroot)%)
stress: tests_stress stress_dir
check_stress: tests_stress check_stress_dir
$(SHELL) $(objroot)test/test.sh $(TESTS_STRESS:$(srcroot)%.c=$(objroot)%)
check: check_unit check_integration check_integration_decay check_integration_prof
check: tests check_dir
$(SHELL) $(objroot)test/test.sh $(TESTS:$(srcroot)%.c=$(objroot)%)
ifeq ($(enable_code_coverage), 1)
coverage_unit: check_unit
@@ -401,7 +355,7 @@ coverage_integration: check_integration
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/src integration $(C_TESTLIB_INTEGRATION_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/integration integration $(TESTS_INTEGRATION_OBJS)
coverage_stress: stress
coverage_stress: check_stress
$(SHELL) $(srcroot)coverage.sh $(srcroot)src pic $(C_PIC_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)src jet $(C_JET_OBJS)
$(SHELL) $(srcroot)coverage.sh $(srcroot)test/src stress $(C_TESTLIB_STRESS_OBJS)
@@ -446,9 +400,8 @@ clean:
rm -f $(objroot)*.gcov.*
distclean: clean
rm -f $(objroot)bin/jemalloc-config
rm -rf $(objroot)autom4te.cache
rm -f $(objroot)bin/jemalloc.sh
rm -f $(objroot)bin/jeprof
rm -f $(objroot)config.log
rm -f $(objroot)config.status
rm -f $(objroot)config.stamp
@@ -457,7 +410,7 @@ distclean: clean
relclean: distclean
rm -f $(objroot)configure
rm -f $(objroot)VERSION
rm -f $(srcroot)VERSION
rm -f $(DOCS_HTML)
rm -f $(DOCS_MAN3)

View File

@@ -1,79 +0,0 @@
#!/bin/sh
usage() {
cat <<EOF
Usage:
@BINDIR@/jemalloc-config <option>
Options:
--help | -h : Print usage.
--version : Print jemalloc version.
--revision : Print shared library revision number.
--config : Print configure options used to build jemalloc.
--prefix : Print installation directory prefix.
--bindir : Print binary installation directory.
--datadir : Print data installation directory.
--includedir : Print include installation directory.
--libdir : Print library installation directory.
--mandir : Print manual page installation directory.
--cc : Print compiler used to build jemalloc.
--cflags : Print compiler flags used to build jemalloc.
--cppflags : Print preprocessor flags used to build jemalloc.
--ldflags : Print library flags used to build jemalloc.
--libs : Print libraries jemalloc was linked against.
EOF
}
prefix="@prefix@"
exec_prefix="@exec_prefix@"
case "$1" in
--help | -h)
usage
exit 0
;;
--version)
echo "@jemalloc_version@"
;;
--revision)
echo "@rev@"
;;
--config)
echo "@CONFIG@"
;;
--prefix)
echo "@PREFIX@"
;;
--bindir)
echo "@BINDIR@"
;;
--datadir)
echo "@DATADIR@"
;;
--includedir)
echo "@INCLUDEDIR@"
;;
--libdir)
echo "@LIBDIR@"
;;
--mandir)
echo "@MANDIR@"
;;
--cc)
echo "@CC@"
;;
--cflags)
echo "@CFLAGS@"
;;
--cppflags)
echo "@CPPFLAGS@"
;;
--ldflags)
echo "@LDFLAGS@ @EXTRA_LDFLAGS@"
;;
--libs)
echo "@LIBS@"
;;
*)
usage
exit 1
esac

661
bin/jeprof.in → bin/pprof Normal file → Executable file

File diff suppressed because it is too large Load Diff

View File

@@ -1,8 +1,8 @@
#! /bin/sh
# Attempt to guess a canonical system name.
# Copyright 1992-2014 Free Software Foundation, Inc.
# Copyright 1992-2013 Free Software Foundation, Inc.
timestamp='2014-03-23'
timestamp='2013-06-10'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ version="\
GNU config.guess ($timestamp)
Originally written by Per Bothner.
Copyright 1992-2014 Free Software Foundation, Inc.
Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -149,7 +149,7 @@ Linux|GNU|GNU/*)
LIBC=gnu
#endif
EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
;;
esac
@@ -826,7 +826,7 @@ EOF
*:MINGW*:*)
echo ${UNAME_MACHINE}-pc-mingw32
exit ;;
*:MSYS*:*)
i*:MSYS*:*)
echo ${UNAME_MACHINE}-pc-msys
exit ;;
i*:windows32*:*)
@@ -969,10 +969,10 @@ EOF
eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
;;
openrisc*:Linux:*:*)
echo or1k-unknown-linux-${LIBC}
or1k:Linux:*:*)
echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
or32:Linux:*:* | or1k*:Linux:*:*)
or32:Linux:*:*)
echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
exit ;;
padre:Linux:*:*)
@@ -1260,26 +1260,16 @@ EOF
if test "$UNAME_PROCESSOR" = unknown ; then
UNAME_PROCESSOR=powerpc
fi
if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then
if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
then
case $UNAME_PROCESSOR in
i386) UNAME_PROCESSOR=x86_64 ;;
powerpc) UNAME_PROCESSOR=powerpc64 ;;
esac
fi
if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
grep IS_64BIT_ARCH >/dev/null
then
case $UNAME_PROCESSOR in
i386) UNAME_PROCESSOR=x86_64 ;;
powerpc) UNAME_PROCESSOR=powerpc64 ;;
esac
fi
elif test "$UNAME_PROCESSOR" = i386 ; then
# Avoid executing cc on OS X 10.9, as it ships with a stub
# that puts up a graphical alert prompting to install
# developer tools. Any system running Mac OS X 10.7 or
# later (Darwin 11 and later) is required to have a 64-bit
# processor. This is not true of the ARM version of Darwin
# that Apple uses in portable devices.
UNAME_PROCESSOR=x86_64
fi
echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
exit ;;
@@ -1371,6 +1361,154 @@ EOF
exit ;;
esac
eval $set_cc_for_build
cat >$dummy.c <<EOF
#ifdef _SEQUENT_
# include <sys/types.h>
# include <sys/utsname.h>
#endif
main ()
{
#if defined (sony)
#if defined (MIPSEB)
/* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
I don't know.... */
printf ("mips-sony-bsd\n"); exit (0);
#else
#include <sys/param.h>
printf ("m68k-sony-newsos%s\n",
#ifdef NEWSOS4
"4"
#else
""
#endif
); exit (0);
#endif
#endif
#if defined (__arm) && defined (__acorn) && defined (__unix)
printf ("arm-acorn-riscix\n"); exit (0);
#endif
#if defined (hp300) && !defined (hpux)
printf ("m68k-hp-bsd\n"); exit (0);
#endif
#if defined (NeXT)
#if !defined (__ARCHITECTURE__)
#define __ARCHITECTURE__ "m68k"
#endif
int version;
version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
if (version < 4)
printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
else
printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
exit (0);
#endif
#if defined (MULTIMAX) || defined (n16)
#if defined (UMAXV)
printf ("ns32k-encore-sysv\n"); exit (0);
#else
#if defined (CMU)
printf ("ns32k-encore-mach\n"); exit (0);
#else
printf ("ns32k-encore-bsd\n"); exit (0);
#endif
#endif
#endif
#if defined (__386BSD__)
printf ("i386-pc-bsd\n"); exit (0);
#endif
#if defined (sequent)
#if defined (i386)
printf ("i386-sequent-dynix\n"); exit (0);
#endif
#if defined (ns32000)
printf ("ns32k-sequent-dynix\n"); exit (0);
#endif
#endif
#if defined (_SEQUENT_)
struct utsname un;
uname(&un);
if (strncmp(un.version, "V2", 2) == 0) {
printf ("i386-sequent-ptx2\n"); exit (0);
}
if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
printf ("i386-sequent-ptx1\n"); exit (0);
}
printf ("i386-sequent-ptx\n"); exit (0);
#endif
#if defined (vax)
# if !defined (ultrix)
# include <sys/param.h>
# if defined (BSD)
# if BSD == 43
printf ("vax-dec-bsd4.3\n"); exit (0);
# else
# if BSD == 199006
printf ("vax-dec-bsd4.3reno\n"); exit (0);
# else
printf ("vax-dec-bsd\n"); exit (0);
# endif
# endif
# else
printf ("vax-dec-bsd\n"); exit (0);
# endif
# else
printf ("vax-dec-ultrix\n"); exit (0);
# endif
#endif
#if defined (alliant) && defined (i860)
printf ("i860-alliant-bsd\n"); exit (0);
#endif
exit (1);
}
EOF
$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
{ echo "$SYSTEM_NAME"; exit; }
# Apollos put the system type in the environment.
test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
# Convex versions that predate uname can use getsysinfo(1)
if [ -x /usr/convex/getsysinfo ]
then
case `getsysinfo -f cpu_type` in
c1*)
echo c1-convex-bsd
exit ;;
c2*)
if getsysinfo -f scalar_acc
then echo c32-convex-bsd
else echo c2-convex-bsd
fi
exit ;;
c34*)
echo c34-convex-bsd
exit ;;
c38*)
echo c38-convex-bsd
exit ;;
c4*)
echo c4-convex-bsd
exit ;;
esac
fi
cat >&2 <<EOF
$0: unable to guess system type

View File

@@ -1,8 +1,8 @@
#! /bin/sh
# Configuration validation subroutine script.
# Copyright 1992-2014 Free Software Foundation, Inc.
# Copyright 1992-2013 Free Software Foundation, Inc.
timestamp='2014-05-01'
timestamp='2013-10-01'
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
@@ -68,7 +68,7 @@ Report bugs and patches to <config-patches@gnu.org>."
version="\
GNU config.sub ($timestamp)
Copyright 1992-2014 Free Software Foundation, Inc.
Copyright 1992-2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -283,10 +283,8 @@ case $basic_machine in
| mips64vr5900 | mips64vr5900el \
| mipsisa32 | mipsisa32el \
| mipsisa32r2 | mipsisa32r2el \
| mipsisa32r6 | mipsisa32r6el \
| mipsisa64 | mipsisa64el \
| mipsisa64r2 | mipsisa64r2el \
| mipsisa64r6 | mipsisa64r6el \
| mipsisa64sb1 | mipsisa64sb1el \
| mipsisa64sr71k | mipsisa64sr71kel \
| mipsr5900 | mipsr5900el \
@@ -298,7 +296,8 @@ case $basic_machine in
| nds32 | nds32le | nds32be \
| nios | nios2 | nios2eb | nios2el \
| ns16k | ns32k \
| open8 | or1k | or1knd | or32 \
| open8 \
| or1k | or32 \
| pdp10 | pdp11 | pj | pjl \
| powerpc | powerpc64 | powerpc64le | powerpcle \
| pyramid \
@@ -403,10 +402,8 @@ case $basic_machine in
| mips64vr5900-* | mips64vr5900el-* \
| mipsisa32-* | mipsisa32el-* \
| mipsisa32r2-* | mipsisa32r2el-* \
| mipsisa32r6-* | mipsisa32r6el-* \
| mipsisa64-* | mipsisa64el-* \
| mipsisa64r2-* | mipsisa64r2el-* \
| mipsisa64r6-* | mipsisa64r6el-* \
| mipsisa64sb1-* | mipsisa64sb1el-* \
| mipsisa64sr71k-* | mipsisa64sr71kel-* \
| mipsr5900-* | mipsr5900el-* \
@@ -418,7 +415,6 @@ case $basic_machine in
| nios-* | nios2-* | nios2eb-* | nios2el-* \
| none-* | np1-* | ns16k-* | ns32k-* \
| open8-* \
| or1k*-* \
| orion-* \
| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
@@ -1380,7 +1376,7 @@ case $os in
| -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
| -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
| -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
| -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
| -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
# Remember, each alternative MUST END IN *, to match a version number.
;;
-qnx*)
@@ -1404,9 +1400,6 @@ case $os in
-mac*)
os=`echo $os | sed -e 's|mac|macos|'`
;;
# Apple iOS
-ios*)
;;
-linux-dietlibc)
os=-linux-dietlibc
;;
@@ -1601,6 +1594,9 @@ case $basic_machine in
mips*-*)
os=-elf
;;
or1k-*)
os=-elf
;;
or32-*)
os=-coff
;;

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

View File

@@ -1,45 +0,0 @@
/*
* Define a custom assert() in order to reduce the chances of deadlock during
* assertion failure.
*/
#ifndef assert
#define assert(e) do { \
if (unlikely(config_debug && !(e))) { \
malloc_printf( \
"<jemalloc>: %s:%d: Failed assertion: \"%s\"\n", \
__FILE__, __LINE__, #e); \
abort(); \
} \
} while (0)
#endif
#ifndef not_reached
#define not_reached() do { \
if (config_debug) { \
malloc_printf( \
"<jemalloc>: %s:%d: Unreachable code reached\n", \
__FILE__, __LINE__); \
abort(); \
} \
unreachable(); \
} while (0)
#endif
#ifndef not_implemented
#define not_implemented() do { \
if (config_debug) { \
malloc_printf("<jemalloc>: %s:%d: Not implemented\n", \
__FILE__, __LINE__); \
abort(); \
} \
} while (0)
#endif
#ifndef assert_not_implemented
#define assert_not_implemented(e) do { \
if (unlikely(config_debug && !(e))) \
not_implemented(); \
} while (0)
#endif

View File

@@ -11,7 +11,6 @@
#define atomic_read_uint64(p) atomic_add_uint64(p, 0)
#define atomic_read_uint32(p) atomic_add_uint32(p, 0)
#define atomic_read_p(p) atomic_add_p(p, NULL)
#define atomic_read_z(p) atomic_add_z(p, 0)
#define atomic_read_u(p) atomic_add_u(p, 0)
@@ -19,139 +18,89 @@
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
/*
* All arithmetic functions return the arithmetic result of the atomic
* operation. Some atomic operation APIs return the value prior to mutation, in
* which case the following functions must redundantly compute the result so
* that it can be returned. These functions are normally inlined, so the extra
* operations can be optimized away if the return values aren't used by the
* callers.
*
* <t> atomic_read_<t>(<t> *p) { return (*p); }
* <t> atomic_add_<t>(<t> *p, <t> x) { return (*p += x); }
* <t> atomic_sub_<t>(<t> *p, <t> x) { return (*p -= x); }
* bool atomic_cas_<t>(<t> *p, <t> c, <t> s)
* {
* if (*p != c)
* return (true);
* *p = s;
* return (false);
* }
* void atomic_write_<t>(<t> *p, <t> x) { *p = x; }
*/
#ifndef JEMALLOC_ENABLE_INLINE
uint64_t atomic_add_uint64(uint64_t *p, uint64_t x);
uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x);
bool atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s);
void atomic_write_uint64(uint64_t *p, uint64_t x);
uint32_t atomic_add_uint32(uint32_t *p, uint32_t x);
uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x);
bool atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s);
void atomic_write_uint32(uint32_t *p, uint32_t x);
void *atomic_add_p(void **p, void *x);
void *atomic_sub_p(void **p, void *x);
bool atomic_cas_p(void **p, void *c, void *s);
void atomic_write_p(void **p, const void *x);
size_t atomic_add_z(size_t *p, size_t x);
size_t atomic_sub_z(size_t *p, size_t x);
bool atomic_cas_z(size_t *p, size_t c, size_t s);
void atomic_write_z(size_t *p, size_t x);
unsigned atomic_add_u(unsigned *p, unsigned x);
unsigned atomic_sub_u(unsigned *p, unsigned x);
bool atomic_cas_u(unsigned *p, unsigned c, unsigned s);
void atomic_write_u(unsigned *p, unsigned x);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_ATOMIC_C_))
/******************************************************************************/
/* 64-bit operations. */
#if (LG_SIZEOF_PTR == 3 || LG_SIZEOF_INT == 3)
# if (defined(__amd64__) || defined(__x86_64__))
# ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
uint64_t t = x;
asm volatile (
"lock; xaddq %0, %1;"
: "+r" (t), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (t + x);
return (__sync_add_and_fetch(p, x));
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
return (__sync_sub_and_fetch(p, x));
}
#elif (defined(_MSC_VER))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
return (InterlockedExchangeAdd64(p, x));
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
return (InterlockedExchangeAdd64(p, -((int64_t)x)));
}
#elif (defined(JEMALLOC_OSATOMIC))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
return (OSAtomicAdd64((int64_t)x, (int64_t *)p));
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
return (OSAtomicAdd64(-((int64_t)x), (int64_t *)p));
}
# elif (defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
asm volatile (
"lock; xaddq %0, %1;"
: "+r" (x), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (x);
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
uint64_t t;
x = (uint64_t)(-(int64_t)x);
t = x;
asm volatile (
"lock; xaddq %0, %1;"
: "+r" (t), "=m" (*p) /* Outputs. */
: "+r" (x), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (t + x);
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
uint8_t success;
asm volatile (
"lock; cmpxchgq %4, %0;"
"sete %1;"
: "=m" (*p), "=a" (success) /* Outputs. */
: "m" (*p), "a" (c), "r" (s) /* Inputs. */
: "memory" /* Clobbers. */
);
return (!(bool)success);
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
asm volatile (
"xchgq %1, %0;" /* Lock is implied by xchgq. */
: "=m" (*p), "+r" (x) /* Outputs. */
: "m" (*p) /* Inputs. */
: "memory" /* Clobbers. */
);
}
# elif (defined(JEMALLOC_C11ATOMICS))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
return (atomic_fetch_add(a, x) + x);
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
return (atomic_fetch_sub(a, x) - x);
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
return (!atomic_compare_exchange_strong(a, &c, s));
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
atomic_store(a, x);
return (x);
}
# elif (defined(JEMALLOC_ATOMIC9))
JEMALLOC_INLINE uint64_t
@@ -175,88 +124,7 @@ atomic_sub_uint64(uint64_t *p, uint64_t x)
return (atomic_fetchadd_long(p, (unsigned long)(-(long)x)) - x);
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
assert(sizeof(uint64_t) == sizeof(unsigned long));
return (!atomic_cmpset_long(p, (unsigned long)c, (unsigned long)s));
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
assert(sizeof(uint64_t) == sizeof(unsigned long));
atomic_store_rel_long(p, x);
}
# elif (defined(JEMALLOC_OSATOMIC))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
return (OSAtomicAdd64((int64_t)x, (int64_t *)p));
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
return (OSAtomicAdd64(-((int64_t)x), (int64_t *)p));
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
return (!OSAtomicCompareAndSwap64(c, s, (int64_t *)p));
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
uint64_t o;
/*The documented OSAtomic*() API does not expose an atomic exchange. */
do {
o = atomic_read_uint64(p);
} while (atomic_cas_uint64(p, o, x));
}
# elif (defined(_MSC_VER))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
return (InterlockedExchangeAdd64(p, x) + x);
}
JEMALLOC_INLINE uint64_t
atomic_sub_uint64(uint64_t *p, uint64_t x)
{
return (InterlockedExchangeAdd64(p, -((int64_t)x)) - x);
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
uint64_t o;
o = InterlockedCompareExchange64(p, s, c);
return (o != c);
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
InterlockedExchange64(p, x);
}
# elif (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) || \
defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8))
# elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8))
JEMALLOC_INLINE uint64_t
atomic_add_uint64(uint64_t *p, uint64_t x)
{
@@ -270,20 +138,6 @@ atomic_sub_uint64(uint64_t *p, uint64_t x)
return (__sync_sub_and_fetch(p, x));
}
JEMALLOC_INLINE bool
atomic_cas_uint64(uint64_t *p, uint64_t c, uint64_t s)
{
return (!__sync_bool_compare_and_swap(p, c, s));
}
JEMALLOC_INLINE void
atomic_write_uint64(uint64_t *p, uint64_t x)
{
__sync_lock_test_and_set(p, x);
}
# else
# error "Missing implementation for 64-bit atomic operations"
# endif
@@ -291,119 +145,33 @@ atomic_write_uint64(uint64_t *p, uint64_t x)
/******************************************************************************/
/* 32-bit operations. */
#if (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
uint32_t t = x;
asm volatile (
"lock; xaddl %0, %1;"
: "+r" (t), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (t + x);
}
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
uint32_t t;
x = (uint32_t)(-(int32_t)x);
t = x;
asm volatile (
"lock; xaddl %0, %1;"
: "+r" (t), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (t + x);
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
{
uint8_t success;
asm volatile (
"lock; cmpxchgl %4, %0;"
"sete %1;"
: "=m" (*p), "=a" (success) /* Outputs. */
: "m" (*p), "a" (c), "r" (s) /* Inputs. */
: "memory"
);
return (!(bool)success);
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
{
asm volatile (
"xchgl %1, %0;" /* Lock is implied by xchgl. */
: "=m" (*p), "+r" (x) /* Outputs. */
: "m" (*p) /* Inputs. */
: "memory" /* Clobbers. */
);
}
# elif (defined(JEMALLOC_C11ATOMICS))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
return (atomic_fetch_add(a, x) + x);
}
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
return (atomic_fetch_sub(a, x) - x);
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
{
volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
return (!atomic_compare_exchange_strong(a, &c, s));
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
{
volatile atomic_uint_least32_t *a = (volatile atomic_uint_least32_t *)p;
atomic_store(a, x);
}
#elif (defined(JEMALLOC_ATOMIC9))
#ifdef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
return (atomic_fetchadd_32(p, x) + x);
return (__sync_add_and_fetch(p, x));
}
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
return (atomic_fetchadd_32(p, (uint32_t)(-(int32_t)x)) - x);
return (__sync_sub_and_fetch(p, x));
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
#elif (defined(_MSC_VER))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
return (!atomic_cmpset_32(p, c, s));
return (InterlockedExchangeAdd(p, x));
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
atomic_store_rel_32(p, x);
return (InterlockedExchangeAdd(p, -((int32_t)x)));
}
#elif (defined(JEMALLOC_OSATOMIC))
JEMALLOC_INLINE uint32_t
@@ -419,56 +187,48 @@ atomic_sub_uint32(uint32_t *p, uint32_t x)
return (OSAtomicAdd32(-((int32_t)x), (int32_t *)p));
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
{
return (!OSAtomicCompareAndSwap32(c, s, (int32_t *)p));
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
{
uint32_t o;
/*The documented OSAtomic*() API does not expose an atomic exchange. */
do {
o = atomic_read_uint32(p);
} while (atomic_cas_uint32(p, o, x));
}
#elif (defined(_MSC_VER))
#elif (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
return (InterlockedExchangeAdd(p, x) + x);
asm volatile (
"lock; xaddl %0, %1;"
: "+r" (x), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (x);
}
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
return (InterlockedExchangeAdd(p, -((int32_t)x)) - x);
x = (uint32_t)(-(int32_t)x);
asm volatile (
"lock; xaddl %0, %1;"
: "+r" (x), "=m" (*p) /* Outputs. */
: "m" (*p) /* Inputs. */
);
return (x);
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
{
uint32_t o;
o = InterlockedCompareExchange(p, s, c);
return (o != c);
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
#elif (defined(JEMALLOC_ATOMIC9))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
InterlockedExchange(p, x);
return (atomic_fetchadd_32(p, x) + x);
}
#elif (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) || \
defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4))
JEMALLOC_INLINE uint32_t
atomic_sub_uint32(uint32_t *p, uint32_t x)
{
return (atomic_fetchadd_32(p, (uint32_t)(-(int32_t)x)) - x);
}
#elif (defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4))
JEMALLOC_INLINE uint32_t
atomic_add_uint32(uint32_t *p, uint32_t x)
{
@@ -482,72 +242,10 @@ atomic_sub_uint32(uint32_t *p, uint32_t x)
return (__sync_sub_and_fetch(p, x));
}
JEMALLOC_INLINE bool
atomic_cas_uint32(uint32_t *p, uint32_t c, uint32_t s)
{
return (!__sync_bool_compare_and_swap(p, c, s));
}
JEMALLOC_INLINE void
atomic_write_uint32(uint32_t *p, uint32_t x)
{
__sync_lock_test_and_set(p, x);
}
#else
# error "Missing implementation for 32-bit atomic operations"
#endif
/******************************************************************************/
/* Pointer operations. */
JEMALLOC_INLINE void *
atomic_add_p(void **p, void *x)
{
#if (LG_SIZEOF_PTR == 3)
return ((void *)atomic_add_uint64((uint64_t *)p, (uint64_t)x));
#elif (LG_SIZEOF_PTR == 2)
return ((void *)atomic_add_uint32((uint32_t *)p, (uint32_t)x));
#endif
}
JEMALLOC_INLINE void *
atomic_sub_p(void **p, void *x)
{
#if (LG_SIZEOF_PTR == 3)
return ((void *)atomic_add_uint64((uint64_t *)p,
(uint64_t)-((int64_t)x)));
#elif (LG_SIZEOF_PTR == 2)
return ((void *)atomic_add_uint32((uint32_t *)p,
(uint32_t)-((int32_t)x)));
#endif
}
JEMALLOC_INLINE bool
atomic_cas_p(void **p, void *c, void *s)
{
#if (LG_SIZEOF_PTR == 3)
return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
#elif (LG_SIZEOF_PTR == 2)
return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
#endif
}
JEMALLOC_INLINE void
atomic_write_p(void **p, const void *x)
{
#if (LG_SIZEOF_PTR == 3)
atomic_write_uint64((uint64_t *)p, (uint64_t)x);
#elif (LG_SIZEOF_PTR == 2)
atomic_write_uint32((uint32_t *)p, (uint32_t)x);
#endif
}
/******************************************************************************/
/* size_t operations. */
JEMALLOC_INLINE size_t
@@ -574,28 +272,6 @@ atomic_sub_z(size_t *p, size_t x)
#endif
}
JEMALLOC_INLINE bool
atomic_cas_z(size_t *p, size_t c, size_t s)
{
#if (LG_SIZEOF_PTR == 3)
return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
#elif (LG_SIZEOF_PTR == 2)
return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
#endif
}
JEMALLOC_INLINE void
atomic_write_z(size_t *p, size_t x)
{
#if (LG_SIZEOF_PTR == 3)
atomic_write_uint64((uint64_t *)p, (uint64_t)x);
#elif (LG_SIZEOF_PTR == 2)
atomic_write_uint32((uint32_t *)p, (uint32_t)x);
#endif
}
/******************************************************************************/
/* unsigned operations. */
JEMALLOC_INLINE unsigned
@@ -621,29 +297,6 @@ atomic_sub_u(unsigned *p, unsigned x)
(uint32_t)-((int32_t)x)));
#endif
}
JEMALLOC_INLINE bool
atomic_cas_u(unsigned *p, unsigned c, unsigned s)
{
#if (LG_SIZEOF_INT == 3)
return (atomic_cas_uint64((uint64_t *)p, (uint64_t)c, (uint64_t)s));
#elif (LG_SIZEOF_INT == 2)
return (atomic_cas_uint32((uint32_t *)p, (uint32_t)c, (uint32_t)s));
#endif
}
JEMALLOC_INLINE void
atomic_write_u(unsigned *p, unsigned x)
{
#if (LG_SIZEOF_INT == 3)
atomic_write_uint64((uint64_t *)p, (uint64_t)x);
#elif (LG_SIZEOF_INT == 2)
atomic_write_uint32((uint32_t *)p, (uint32_t)x);
#endif
}
/******************************************************************************/
#endif

View File

@@ -10,7 +10,9 @@
#ifdef JEMALLOC_H_EXTERNS
void *base_alloc(size_t size);
void base_stats_get(size_t *allocated, size_t *resident, size_t *mapped);
void *base_calloc(size_t number, size_t size);
extent_node_t *base_node_alloc(void);
void base_node_dealloc(extent_node_t *node);
bool base_boot(void);
void base_prefork(void);
void base_postfork_parent(void);

View File

@@ -3,7 +3,6 @@
/* Maximum bitmap bit count is 2^LG_BITMAP_MAXBITS. */
#define LG_BITMAP_MAXBITS LG_RUN_MAXREGS
#define BITMAP_MAXBITS (ZU(1) << LG_BITMAP_MAXBITS)
typedef struct bitmap_level_s bitmap_level_t;
typedef struct bitmap_info_s bitmap_info_t;
@@ -15,73 +14,11 @@ typedef unsigned long bitmap_t;
#define BITMAP_GROUP_NBITS (ZU(1) << LG_BITMAP_GROUP_NBITS)
#define BITMAP_GROUP_NBITS_MASK (BITMAP_GROUP_NBITS-1)
/*
* Do some analysis on how big the bitmap is before we use a tree. For a brute
* force linear search, if we would have to call ffsl more than 2^3 times, use a
* tree instead.
*/
#if LG_BITMAP_MAXBITS - LG_BITMAP_GROUP_NBITS > 3
# define USE_TREE
#endif
/* Number of groups required to store a given number of bits. */
#define BITMAP_BITS2GROUPS(nbits) \
((nbits + BITMAP_GROUP_NBITS_MASK) >> LG_BITMAP_GROUP_NBITS)
/*
* Number of groups required at a particular level for a given number of bits.
*/
#define BITMAP_GROUPS_L0(nbits) \
BITMAP_BITS2GROUPS(nbits)
#define BITMAP_GROUPS_L1(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(nbits))
#define BITMAP_GROUPS_L2(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS((nbits))))
#define BITMAP_GROUPS_L3(nbits) \
BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS(BITMAP_BITS2GROUPS( \
BITMAP_BITS2GROUPS((nbits)))))
/*
* Assuming the number of levels, number of groups required for a given number
* of bits.
*/
#define BITMAP_GROUPS_1_LEVEL(nbits) \
BITMAP_GROUPS_L0(nbits)
#define BITMAP_GROUPS_2_LEVEL(nbits) \
(BITMAP_GROUPS_1_LEVEL(nbits) + BITMAP_GROUPS_L1(nbits))
#define BITMAP_GROUPS_3_LEVEL(nbits) \
(BITMAP_GROUPS_2_LEVEL(nbits) + BITMAP_GROUPS_L2(nbits))
#define BITMAP_GROUPS_4_LEVEL(nbits) \
(BITMAP_GROUPS_3_LEVEL(nbits) + BITMAP_GROUPS_L3(nbits))
/*
* Maximum number of groups required to support LG_BITMAP_MAXBITS.
*/
#ifdef USE_TREE
#if LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_1_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 2
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_2_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 3
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_3_LEVEL(BITMAP_MAXBITS)
#elif LG_BITMAP_MAXBITS <= LG_BITMAP_GROUP_NBITS * 4
# define BITMAP_GROUPS_MAX BITMAP_GROUPS_4_LEVEL(BITMAP_MAXBITS)
#else
# error "Unsupported bitmap size"
#endif
/* Maximum number of levels possible. */
#define BITMAP_MAX_LEVELS \
(LG_BITMAP_MAXBITS / LG_SIZEOF_BITMAP) \
+ !!(LG_BITMAP_MAXBITS % LG_SIZEOF_BITMAP)
#else /* USE_TREE */
#define BITMAP_GROUPS_MAX BITMAP_BITS2GROUPS(BITMAP_MAXBITS)
#endif /* USE_TREE */
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
@@ -95,7 +32,6 @@ struct bitmap_info_s {
/* Logical number of bits in bitmap (stored at bottom level). */
size_t nbits;
#ifdef USE_TREE
/* Number of levels necessary for nbits. */
unsigned nlevels;
@@ -104,10 +40,6 @@ struct bitmap_info_s {
* bottom to top (e.g. the bottom level is stored in levels[0]).
*/
bitmap_level_t levels[BITMAP_MAX_LEVELS+1];
#else /* USE_TREE */
/* Number of groups necessary for nbits. */
size_t ngroups;
#endif /* USE_TREE */
};
#endif /* JEMALLOC_H_STRUCTS */
@@ -115,8 +47,9 @@ struct bitmap_info_s {
#ifdef JEMALLOC_H_EXTERNS
void bitmap_info_init(bitmap_info_t *binfo, size_t nbits);
size_t bitmap_info_ngroups(const bitmap_info_t *binfo);
size_t bitmap_size(size_t nbits);
void bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo);
size_t bitmap_size(const bitmap_info_t *binfo);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
@@ -134,20 +67,10 @@ void bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit);
JEMALLOC_INLINE bool
bitmap_full(bitmap_t *bitmap, const bitmap_info_t *binfo)
{
#ifdef USE_TREE
size_t rgoff = binfo->levels[binfo->nlevels].group_offset - 1;
unsigned rgoff = binfo->levels[binfo->nlevels].group_offset - 1;
bitmap_t rg = bitmap[rgoff];
/* The bitmap is full iff the root group is 0. */
return (rg == 0);
#else
size_t i;
for (i = 0; i < binfo->ngroups; i++) {
if (bitmap[i] != 0)
return (false);
}
return (true);
#endif
}
JEMALLOC_INLINE bool
@@ -159,7 +82,7 @@ bitmap_get(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
assert(bit < binfo->nbits);
goff = bit >> LG_BITMAP_GROUP_NBITS;
g = bitmap[goff];
return (!(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))));
return (!(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))));
}
JEMALLOC_INLINE void
@@ -170,15 +93,14 @@ bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
bitmap_t g;
assert(bit < binfo->nbits);
assert(!bitmap_get(bitmap, binfo, bit));
assert(bitmap_get(bitmap, binfo, bit) == false);
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[goff];
g = *gp;
assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
assert(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
assert(bitmap_get(bitmap, binfo, bit));
#ifdef USE_TREE
/* Propagate group state transitions up the tree. */
if (g == 0) {
unsigned i;
@@ -187,14 +109,13 @@ bitmap_set(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
goff = bit >> LG_BITMAP_GROUP_NBITS;
gp = &bitmap[binfo->levels[i].group_offset + goff];
g = *gp;
assert(g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
assert(g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK)));
g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
if (g != 0)
break;
}
}
#endif
}
/* sfu: set first unset. */
@@ -205,26 +126,17 @@ bitmap_sfu(bitmap_t *bitmap, const bitmap_info_t *binfo)
bitmap_t g;
unsigned i;
assert(!bitmap_full(bitmap, binfo));
assert(bitmap_full(bitmap, binfo) == false);
#ifdef USE_TREE
i = binfo->nlevels - 1;
g = bitmap[binfo->levels[i].group_offset];
bit = ffs_lu(g) - 1;
bit = ffsl(g) - 1;
while (i > 0) {
i--;
g = bitmap[binfo->levels[i].group_offset + bit];
bit = (bit << LG_BITMAP_GROUP_NBITS) + (ffs_lu(g) - 1);
bit = (bit << LG_BITMAP_GROUP_NBITS) + (ffsl(g) - 1);
}
#else
i = 0;
g = bitmap[0];
while ((bit = ffs_lu(g)) == 0) {
i++;
g = bitmap[i];
}
bit = (bit - 1) + (i << 6);
#endif
bitmap_set(bitmap, binfo, bit);
return (bit);
}
@@ -235,7 +147,7 @@ bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
size_t goff;
bitmap_t *gp;
bitmap_t g;
UNUSED bool propagate;
bool propagate;
assert(bit < binfo->nbits);
assert(bitmap_get(bitmap, binfo, bit));
@@ -243,11 +155,10 @@ bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
gp = &bitmap[goff];
g = *gp;
propagate = (g == 0);
assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK))) == 0);
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
assert((g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK))) == 0);
g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
assert(!bitmap_get(bitmap, binfo, bit));
#ifdef USE_TREE
assert(bitmap_get(bitmap, binfo, bit) == false);
/* Propagate group state transitions up the tree. */
if (propagate) {
unsigned i;
@@ -257,15 +168,14 @@ bitmap_unset(bitmap_t *bitmap, const bitmap_info_t *binfo, size_t bit)
gp = &bitmap[binfo->levels[i].group_offset + goff];
g = *gp;
propagate = (g == 0);
assert((g & (ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK)))
assert((g & (1LU << (bit & BITMAP_GROUP_NBITS_MASK)))
== 0);
g ^= ZU(1) << (bit & BITMAP_GROUP_NBITS_MASK);
g ^= 1LU << (bit & BITMAP_GROUP_NBITS_MASK);
*gp = g;
if (!propagate)
if (propagate == false)
break;
}
}
#endif /* USE_TREE */
}
#endif

View File

@@ -5,7 +5,7 @@
* Size and alignment of memory chunks that are allocated by the OS's virtual
* memory system.
*/
#define LG_CHUNK_DEFAULT 21
#define LG_CHUNK_DEFAULT 22
/* Return the chunk address for allocation address a. */
#define CHUNK_ADDR2BASE(a) \
@@ -19,16 +19,6 @@
#define CHUNK_CEILING(s) \
(((s) + chunksize_mask) & ~chunksize_mask)
#define CHUNK_HOOKS_INITIALIZER { \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL, \
NULL \
}
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
@@ -40,36 +30,23 @@
extern size_t opt_lg_chunk;
extern const char *opt_dss;
extern rtree_t chunks_rtree;
/* Protects stats_chunks; currently not used for any other purpose. */
extern malloc_mutex_t chunks_mtx;
/* Chunk statistics. */
extern chunk_stats_t stats_chunks;
extern rtree_t *chunks_rtree;
extern size_t chunksize;
extern size_t chunksize_mask; /* (chunksize - 1). */
extern size_t chunk_npages;
extern size_t map_bias; /* Number of arena chunk header pages. */
extern size_t arena_maxclass; /* Max size class for arenas. */
extern const chunk_hooks_t chunk_hooks_default;
chunk_hooks_t chunk_hooks_get(arena_t *arena);
chunk_hooks_t chunk_hooks_set(arena_t *arena,
const chunk_hooks_t *chunk_hooks);
bool chunk_register(const void *chunk, const extent_node_t *node);
void chunk_deregister(const void *chunk, const extent_node_t *node);
void *chunk_alloc_base(size_t size);
void *chunk_alloc_cache(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *new_addr, size_t size, size_t alignment, bool *zero,
bool dalloc_node);
void *chunk_alloc_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *new_addr, size_t size, size_t alignment, bool *zero, bool *commit);
void chunk_dalloc_cache(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *chunk, size_t size, bool committed);
void chunk_dalloc_arena(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *chunk, size_t size, bool zeroed, bool committed);
void chunk_dalloc_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *chunk, size_t size, bool committed);
bool chunk_purge_arena(arena_t *arena, void *chunk, size_t offset,
size_t length);
bool chunk_purge_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks,
void *chunk, size_t size, size_t offset, size_t length);
void *chunk_alloc(size_t size, size_t alignment, bool base, bool *zero,
dss_prec_t dss_prec);
void chunk_unmap(void *chunk, size_t size);
void chunk_dealloc(void *chunk, size_t size, bool unmap);
bool chunk_boot(void);
void chunk_prefork(void);
void chunk_postfork_parent(void);
@@ -79,19 +56,6 @@ void chunk_postfork_child(void);
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
extent_node_t *chunk_lookup(const void *chunk, bool dependent);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_CHUNK_C_))
JEMALLOC_INLINE extent_node_t *
chunk_lookup(const void *ptr, bool dependent)
{
return (rtree_get(&chunks_rtree, (uintptr_t)ptr, dependent));
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -23,8 +23,7 @@ extern const char *dss_prec_names[];
dss_prec_t chunk_dss_prec_get(void);
bool chunk_dss_prec_set(dss_prec_t dss_prec);
void *chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size,
size_t alignment, bool *zero, bool *commit);
void *chunk_alloc_dss(size_t size, size_t alignment, bool *zero);
bool chunk_in_dss(void *chunk);
bool chunk_dss_boot(void);
void chunk_dss_prefork(void);

View File

@@ -9,9 +9,10 @@
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *chunk_alloc_mmap(void *new_addr, size_t size, size_t alignment,
bool *zero, bool *commit);
bool chunk_dalloc_mmap(void *chunk, size_t size);
bool pages_purge(void *addr, size_t length);
void *chunk_alloc_mmap(size_t size, size_t alignment, bool *zero);
bool chunk_dealloc_mmap(void *chunk, size_t size);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/

View File

@@ -40,7 +40,9 @@ struct ckh_s {
#endif
/* Used for pseudo-random number generation. */
uint64_t prng_state;
#define CKH_A 1103515241
#define CKH_C 12347
uint32_t prng_state;
/* Total number of items. */
size_t count;
@@ -64,15 +66,15 @@ struct ckh_s {
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
bool ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
bool ckh_new(ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh_keycomp_t *keycomp);
void ckh_delete(tsd_t *tsd, ckh_t *ckh);
void ckh_delete(ckh_t *ckh);
size_t ckh_count(ckh_t *ckh);
bool ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data);
bool ckh_insert(tsd_t *tsd, ckh_t *ckh, const void *key, const void *data);
bool ckh_remove(tsd_t *tsd, ckh_t *ckh, const void *searchkey, void **key,
bool ckh_insert(ckh_t *ckh, const void *key, const void *data);
bool ckh_remove(ckh_t *ckh, const void *searchkey, void **key,
void **data);
bool ckh_search(ckh_t *ckh, const void *searchkey, void **key, void **data);
bool ckh_search(ckh_t *ckh, const void *seachkey, void **key, void **data);
void ckh_string_hash(const void *key, size_t r_hash[2]);
bool ckh_string_keycomp(const void *k1, const void *k2);
void ckh_pointer_hash(const void *key, size_t r_hash[2]);

View File

@@ -34,13 +34,8 @@ struct ctl_arena_stats_s {
bool initialized;
unsigned nthreads;
const char *dss;
ssize_t lg_dirty_mult;
ssize_t decay_time;
size_t pactive;
size_t pdirty;
/* The remainder are only populated if config_stats is true. */
arena_stats_t astats;
/* Aggregate stats for small size classes, based on bin stats. */
@@ -51,15 +46,22 @@ struct ctl_arena_stats_s {
malloc_bin_stats_t bstats[NBINS];
malloc_large_stats_t *lstats; /* nlclasses elements. */
malloc_huge_stats_t *hstats; /* nhclasses elements. */
};
struct ctl_stats_s {
size_t allocated;
size_t active;
size_t metadata;
size_t resident;
size_t mapped;
struct {
size_t current; /* stats_chunks.curchunks */
uint64_t total; /* stats_chunks.nchunks */
size_t high; /* stats_chunks.highchunks */
} chunks;
struct {
size_t allocated; /* huge_allocated */
uint64_t nmalloc; /* huge_nmalloc */
uint64_t ndalloc; /* huge_ndalloc */
} huge;
unsigned narenas;
ctl_arena_stats_t *arenas; /* (narenas + 1) elements. */
};

View File

@@ -7,53 +7,25 @@ typedef struct extent_node_s extent_node_t;
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
/* Tree of extents. Use accessor functions for en_* fields. */
/* Tree of extents. */
struct extent_node_s {
/* Arena from which this extent came, if any. */
arena_t *en_arena;
/* Pointer to the extent that this tree node is responsible for. */
void *en_addr;
/* Total region size. */
size_t en_size;
/*
* The zeroed flag is used by chunk recycling code to track whether
* memory is zero-filled.
*/
bool en_zeroed;
/*
* True if physical memory is committed to the extent, whether
* explicitly or implicitly as on a system that overcommits and
* satisfies physical memory needs on demand via soft page faults.
*/
bool en_committed;
/*
* The achunk flag is used to validate that huge allocation lookups
* don't return arena chunks.
*/
bool en_achunk;
/* Profile counters, used for huge objects. */
prof_tctx_t *en_prof_tctx;
/* Linkage for arena's runs_dirty and chunks_cache rings. */
arena_runs_dirty_link_t rd;
qr(extent_node_t) cc_link;
union {
/* Linkage for the size/address-ordered tree. */
rb_node(extent_node_t) szad_link;
/* Linkage for arena's huge and node_cache lists. */
ql_elm(extent_node_t) ql_link;
};
/* Linkage for the size/address-ordered tree. */
rb_node(extent_node_t) link_szad;
/* Linkage for the address-ordered tree. */
rb_node(extent_node_t) ad_link;
rb_node(extent_node_t) link_ad;
/* Profile counters, used for huge objects. */
prof_ctx_t *prof_ctx;
/* Pointer to the extent that this tree node is responsible for. */
void *addr;
/* Total region size. */
size_t size;
/* True if zero-filled; used by chunk recycling code. */
bool zeroed;
};
typedef rb_tree(extent_node_t) extent_tree_t;
@@ -69,171 +41,6 @@ rb_proto(, extent_tree_ad_, extent_tree_t, extent_node_t)
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
arena_t *extent_node_arena_get(const extent_node_t *node);
void *extent_node_addr_get(const extent_node_t *node);
size_t extent_node_size_get(const extent_node_t *node);
bool extent_node_zeroed_get(const extent_node_t *node);
bool extent_node_committed_get(const extent_node_t *node);
bool extent_node_achunk_get(const extent_node_t *node);
prof_tctx_t *extent_node_prof_tctx_get(const extent_node_t *node);
void extent_node_arena_set(extent_node_t *node, arena_t *arena);
void extent_node_addr_set(extent_node_t *node, void *addr);
void extent_node_size_set(extent_node_t *node, size_t size);
void extent_node_zeroed_set(extent_node_t *node, bool zeroed);
void extent_node_committed_set(extent_node_t *node, bool committed);
void extent_node_achunk_set(extent_node_t *node, bool achunk);
void extent_node_prof_tctx_set(extent_node_t *node, prof_tctx_t *tctx);
void extent_node_init(extent_node_t *node, arena_t *arena, void *addr,
size_t size, bool zeroed, bool committed);
void extent_node_dirty_linkage_init(extent_node_t *node);
void extent_node_dirty_insert(extent_node_t *node,
arena_runs_dirty_link_t *runs_dirty, extent_node_t *chunks_dirty);
void extent_node_dirty_remove(extent_node_t *node);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_EXTENT_C_))
JEMALLOC_INLINE arena_t *
extent_node_arena_get(const extent_node_t *node)
{
return (node->en_arena);
}
JEMALLOC_INLINE void *
extent_node_addr_get(const extent_node_t *node)
{
return (node->en_addr);
}
JEMALLOC_INLINE size_t
extent_node_size_get(const extent_node_t *node)
{
return (node->en_size);
}
JEMALLOC_INLINE bool
extent_node_zeroed_get(const extent_node_t *node)
{
return (node->en_zeroed);
}
JEMALLOC_INLINE bool
extent_node_committed_get(const extent_node_t *node)
{
assert(!node->en_achunk);
return (node->en_committed);
}
JEMALLOC_INLINE bool
extent_node_achunk_get(const extent_node_t *node)
{
return (node->en_achunk);
}
JEMALLOC_INLINE prof_tctx_t *
extent_node_prof_tctx_get(const extent_node_t *node)
{
return (node->en_prof_tctx);
}
JEMALLOC_INLINE void
extent_node_arena_set(extent_node_t *node, arena_t *arena)
{
node->en_arena = arena;
}
JEMALLOC_INLINE void
extent_node_addr_set(extent_node_t *node, void *addr)
{
node->en_addr = addr;
}
JEMALLOC_INLINE void
extent_node_size_set(extent_node_t *node, size_t size)
{
node->en_size = size;
}
JEMALLOC_INLINE void
extent_node_zeroed_set(extent_node_t *node, bool zeroed)
{
node->en_zeroed = zeroed;
}
JEMALLOC_INLINE void
extent_node_committed_set(extent_node_t *node, bool committed)
{
node->en_committed = committed;
}
JEMALLOC_INLINE void
extent_node_achunk_set(extent_node_t *node, bool achunk)
{
node->en_achunk = achunk;
}
JEMALLOC_INLINE void
extent_node_prof_tctx_set(extent_node_t *node, prof_tctx_t *tctx)
{
node->en_prof_tctx = tctx;
}
JEMALLOC_INLINE void
extent_node_init(extent_node_t *node, arena_t *arena, void *addr, size_t size,
bool zeroed, bool committed)
{
extent_node_arena_set(node, arena);
extent_node_addr_set(node, addr);
extent_node_size_set(node, size);
extent_node_zeroed_set(node, zeroed);
extent_node_committed_set(node, committed);
extent_node_achunk_set(node, false);
if (config_prof)
extent_node_prof_tctx_set(node, NULL);
}
JEMALLOC_INLINE void
extent_node_dirty_linkage_init(extent_node_t *node)
{
qr_new(&node->rd, rd_link);
qr_new(node, cc_link);
}
JEMALLOC_INLINE void
extent_node_dirty_insert(extent_node_t *node,
arena_runs_dirty_link_t *runs_dirty, extent_node_t *chunks_dirty)
{
qr_meld(runs_dirty, &node->rd, rd_link);
qr_meld(chunks_dirty, node, cc_link);
}
JEMALLOC_INLINE void
extent_node_dirty_remove(extent_node_t *node)
{
qr_remove(&node->rd, rd_link);
qr_remove(node, cc_link);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -1,6 +1,6 @@
/*
* The following hash function is based on MurmurHash3, placed into the public
* domain by Austin Appleby. See https://github.com/aappleby/smhasher for
* domain by Austin Appleby. See http://code.google.com/p/smhasher/ for
* details.
*/
/******************************************************************************/
@@ -35,28 +35,19 @@ JEMALLOC_INLINE uint32_t
hash_rotl_32(uint32_t x, int8_t r)
{
return ((x << r) | (x >> (32 - r)));
return (x << r) | (x >> (32 - r));
}
JEMALLOC_INLINE uint64_t
hash_rotl_64(uint64_t x, int8_t r)
{
return ((x << r) | (x >> (64 - r)));
return (x << r) | (x >> (64 - r));
}
JEMALLOC_INLINE uint32_t
hash_get_block_32(const uint32_t *p, int i)
{
/* Handle unaligned read. */
if (unlikely((uintptr_t)p & (sizeof(uint32_t)-1)) != 0) {
uint32_t ret;
memcpy(&ret, &p[i], sizeof(uint32_t));
return (ret);
}
return (p[i]);
}
@@ -64,14 +55,6 @@ JEMALLOC_INLINE uint64_t
hash_get_block_64(const uint64_t *p, int i)
{
/* Handle unaligned read. */
if (unlikely((uintptr_t)p & (sizeof(uint64_t)-1)) != 0) {
uint64_t ret;
memcpy(&ret, &p[i], sizeof(uint64_t));
return (ret);
}
return (p[i]);
}
@@ -93,9 +76,9 @@ hash_fmix_64(uint64_t k)
{
k ^= k >> 33;
k *= KQU(0xff51afd7ed558ccd);
k *= QU(0xff51afd7ed558ccdLLU);
k ^= k >> 33;
k *= KQU(0xc4ceb9fe1a85ec53);
k *= QU(0xc4ceb9fe1a85ec53LLU);
k ^= k >> 33;
return (k);
@@ -264,8 +247,8 @@ hash_x64_128(const void *key, const int len, const uint32_t seed,
uint64_t h1 = seed;
uint64_t h2 = seed;
const uint64_t c1 = KQU(0x87c37b91114253d5);
const uint64_t c2 = KQU(0x4cf5ad432745937f);
const uint64_t c1 = QU(0x87c37b91114253d5LLU);
const uint64_t c2 = QU(0x4cf5ad432745937fLLU);
/* body */
{
@@ -337,18 +320,13 @@ hash_x64_128(const void *key, const int len, const uint32_t seed,
JEMALLOC_INLINE void
hash(const void *key, size_t len, const uint32_t seed, size_t r_hash[2])
{
assert(len <= INT_MAX); /* Unfortunate implementation limitation. */
#if (LG_SIZEOF_PTR == 3 && !defined(JEMALLOC_BIG_ENDIAN))
hash_x64_128(key, (int)len, seed, (uint64_t *)r_hash);
hash_x64_128(key, len, seed, (uint64_t *)r_hash);
#else
{
uint64_t hashes[2];
hash_x86_128(key, (int)len, seed, hashes);
r_hash[0] = (size_t)hashes[0];
r_hash[1] = (size_t)hashes[1];
}
uint64_t hashes[2];
hash_x86_128(key, len, seed, hashes);
r_hash[0] = (size_t)hashes[0];
r_hash[1] = (size_t)hashes[1];
#endif
}
#endif

View File

@@ -9,24 +9,34 @@
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *huge_malloc(tsd_t *tsd, arena_t *arena, size_t usize, bool zero,
tcache_t *tcache);
void *huge_palloc(tsd_t *tsd, arena_t *arena, size_t usize, size_t alignment,
bool zero, tcache_t *tcache);
bool huge_ralloc_no_move(tsd_t *tsd, void *ptr, size_t oldsize,
size_t usize_min, size_t usize_max, bool zero);
void *huge_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize,
size_t usize, size_t alignment, bool zero, tcache_t *tcache);
/* Huge allocation statistics. */
extern uint64_t huge_nmalloc;
extern uint64_t huge_ndalloc;
extern size_t huge_allocated;
/* Protects chunk-related data structures. */
extern malloc_mutex_t huge_mtx;
void *huge_malloc(size_t size, bool zero, dss_prec_t dss_prec);
void *huge_palloc(size_t size, size_t alignment, bool zero,
dss_prec_t dss_prec);
bool huge_ralloc_no_move(void *ptr, size_t oldsize, size_t size,
size_t extra);
void *huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra,
size_t alignment, bool zero, bool try_tcache_dalloc, dss_prec_t dss_prec);
#ifdef JEMALLOC_JET
typedef void (huge_dalloc_junk_t)(void *, size_t);
extern huge_dalloc_junk_t *huge_dalloc_junk;
#endif
void huge_dalloc(tsd_t *tsd, void *ptr, tcache_t *tcache);
arena_t *huge_aalloc(const void *ptr);
void huge_dalloc(void *ptr, bool unmap);
size_t huge_salloc(const void *ptr);
prof_tctx_t *huge_prof_tctx_get(const void *ptr);
void huge_prof_tctx_set(const void *ptr, prof_tctx_t *tctx);
void huge_prof_tctx_reset(const void *ptr);
dss_prec_t huge_dss_prec_get(arena_t *arena);
prof_ctx_t *huge_prof_ctx_get(const void *ptr);
void huge_prof_ctx_set(const void *ptr, prof_ctx_t *ctx);
bool huge_boot(void);
void huge_prefork(void);
void huge_postfork_parent(void);
void huge_postfork_child(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/

File diff suppressed because it is too large Load Diff

View File

@@ -1,65 +0,0 @@
#ifndef JEMALLOC_INTERNAL_DECLS_H
#define JEMALLOC_INTERNAL_DECLS_H
#include <math.h>
#ifdef _WIN32
# include <windows.h>
# include "msvc_compat/windows_extra.h"
#else
# include <sys/param.h>
# include <sys/mman.h>
# if !defined(__pnacl__) && !defined(__native_client__)
# include <sys/syscall.h>
# if !defined(SYS_write) && defined(__NR_write)
# define SYS_write __NR_write
# endif
# include <sys/uio.h>
# endif
# include <pthread.h>
# include <errno.h>
# include <sys/time.h>
#endif
#include <sys/types.h>
#include <limits.h>
#ifndef SIZE_T_MAX
# define SIZE_T_MAX SIZE_MAX
#endif
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#ifndef offsetof
# define offsetof(type, member) ((size_t)&(((type *)NULL)->member))
#endif
#include <string.h>
#include <strings.h>
#include <ctype.h>
#ifdef _MSC_VER
# include <io.h>
typedef intptr_t ssize_t;
# define PATH_MAX 1024
# define STDERR_FILENO 2
# define __func__ __FUNCTION__
# ifdef JEMALLOC_HAS_RESTRICT
# define restrict __restrict
# endif
/* Disable warnings about deprecated system functions. */
# pragma warning(disable: 4996)
#if _MSC_VER < 1800
static int
isblank(int c)
{
return (c == '\t' || c == ' ');
}
#endif
#else
# include <unistd.h>
#endif
#include <fcntl.h>
#endif /* JEMALLOC_INTERNAL_H */

View File

@@ -22,9 +22,6 @@
*/
#undef CPU_SPINWAIT
/* Defined if C11 atomics are available. */
#undef JEMALLOC_C11ATOMICS
/* Defined if the equivalent of FreeBSD's atomic(9) functions are available. */
#undef JEMALLOC_ATOMIC9
@@ -38,7 +35,7 @@
* Defined if __sync_add_and_fetch(uint32_t *, uint32_t) and
* __sync_sub_and_fetch(uint32_t *, uint32_t) are available, despite
* __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 not being defined (which means the
* functions are defined in libgcc instead of being inlines).
* functions are defined in libgcc instead of being inlines)
*/
#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_4
@@ -46,36 +43,16 @@
* Defined if __sync_add_and_fetch(uint64_t *, uint64_t) and
* __sync_sub_and_fetch(uint64_t *, uint64_t) are available, despite
* __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 not being defined (which means the
* functions are defined in libgcc instead of being inlines).
* functions are defined in libgcc instead of being inlines)
*/
#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_8
/*
* Defined if __builtin_clz() and __builtin_clzl() are available.
*/
#undef JEMALLOC_HAVE_BUILTIN_CLZ
/*
* Defined if madvise(2) is available.
*/
#undef JEMALLOC_HAVE_MADVISE
/*
* Defined if OSSpin*() functions are available, as provided by Darwin, and
* documented in the spinlock(3) manual page.
*/
#undef JEMALLOC_OSSPIN
/*
* Defined if secure_getenv(3) is available.
*/
#undef JEMALLOC_HAVE_SECURE_GETENV
/*
* Defined if issetugid(2) is available.
*/
#undef JEMALLOC_HAVE_ISSETUGID
/*
* Defined if _malloc_thread_cleanup() exists. At least in the case of
* FreeBSD, pthread_key_create() allocates, which if used during malloc
@@ -99,6 +76,9 @@
*/
#undef JEMALLOC_MUTEX_INIT_CB
/* Defined if sbrk() is supported. */
#undef JEMALLOC_HAVE_SBRK
/* Non-empty if the tls_model attribute is supported. */
#undef JEMALLOC_TLS_MODEL
@@ -157,26 +137,8 @@
/* Support lazy locking (avoid locking unless a second thread is launched). */
#undef JEMALLOC_LAZY_LOCK
/* Minimum size class to support is 2^LG_TINY_MIN bytes. */
#undef LG_TINY_MIN
/*
* Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size
* classes).
*/
#undef LG_QUANTUM
/* One page is 2^LG_PAGE bytes. */
#undef LG_PAGE
/*
* If defined, adjacent virtual memory mappings with identical attributes
* automatically coalesce, and they fragment when changes are made to subranges.
* This is the normal order of things for mmap()/munmap(), but on Windows
* VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e.
* mappings do *not* coalesce/fragment.
*/
#undef JEMALLOC_MAPS_COALESCE
/* One page is 2^STATIC_PAGE_SHIFT bytes. */
#undef STATIC_PAGE_SHIFT
/*
* If defined, use munmap() to unmap freed chunks, rather than storing them for
@@ -185,29 +147,22 @@
*/
#undef JEMALLOC_MUNMAP
/*
* If defined, use mremap(...MREMAP_FIXED...) for huge realloc(). This is
* disabled by default because it is Linux-specific and it will cause virtual
* memory map holes, much like munmap(2) does.
*/
#undef JEMALLOC_MREMAP
/* TLS is used to map arenas and magazine caches to threads. */
#undef JEMALLOC_TLS
/*
* ffs*() functions to use for bitmapping. Don't use these directly; instead,
* use ffs_*() from util.h.
*/
#undef JEMALLOC_INTERNAL_FFSLL
#undef JEMALLOC_INTERNAL_FFSL
#undef JEMALLOC_INTERNAL_FFS
/*
* JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside
* within jemalloc-owned chunks before dereferencing them.
*/
#undef JEMALLOC_IVSALLOC
/*
* If defined, explicitly attempt to more uniformly distribute large allocation
* pointer alignments across all cache indices.
*/
#undef JEMALLOC_CACHE_OBLIVIOUS
/*
* Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings.
*/
@@ -227,7 +182,9 @@
#undef JEMALLOC_PURGE_MADVISE_DONTNEED
#undef JEMALLOC_PURGE_MADVISE_FREE
/* Define if operating system has alloca.h header. */
/*
* Define if operating system has alloca.h header.
*/
#undef JEMALLOC_HAS_ALLOCA_H
/* C99 restrict keyword supported. */
@@ -242,28 +199,7 @@
/* sizeof(long) == 2^LG_SIZEOF_LONG. */
#undef LG_SIZEOF_LONG
/* sizeof(long long) == 2^LG_SIZEOF_LONG_LONG. */
#undef LG_SIZEOF_LONG_LONG
/* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */
#undef LG_SIZEOF_INTMAX_T
/* glibc malloc hooks (__malloc_hook, __realloc_hook, __free_hook). */
#undef JEMALLOC_GLIBC_MALLOC_HOOK
/* glibc memalign hook. */
#undef JEMALLOC_GLIBC_MEMALIGN_HOOK
/* Adaptive mutex support in pthreads. */
#undef JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP
/*
* If defined, jemalloc symbols are not exported (doesn't work when
* JEMALLOC_PREFIX is not defined).
*/
#undef JEMALLOC_EXPORT
/* config.malloc_conf options string. */
#undef JEMALLOC_CONFIG_MALLOC_CONF
#endif /* JEMALLOC_INTERNAL_DEFS_H_ */

View File

@@ -39,15 +39,9 @@
#endif
#define ZU(z) ((size_t)z)
#define ZI(z) ((ssize_t)z)
#define QU(q) ((uint64_t)q)
#define QI(q) ((int64_t)q)
#define KZU(z) ZU(z##ULL)
#define KZI(z) ZI(z##LL)
#define KQU(q) QU(q##ULL)
#define KQI(q) QI(q##LL)
#ifndef __DECONST
# define __DECONST(type, var) ((type)(uintptr_t)(const void *)(var))
#endif

View File

@@ -10,7 +10,7 @@ typedef struct malloc_mutex_s malloc_mutex_t;
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
# define MALLOC_MUTEX_INITIALIZER {PTHREAD_MUTEX_INITIALIZER, NULL}
#else
# if (defined(JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP) && \
# if (defined(PTHREAD_MUTEX_ADAPTIVE_NP) && \
defined(PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP))
# define MALLOC_MUTEX_TYPE PTHREAD_MUTEX_ADAPTIVE_NP
# define MALLOC_MUTEX_INITIALIZER {PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP}
@@ -26,11 +26,7 @@ typedef struct malloc_mutex_s malloc_mutex_t;
struct malloc_mutex_s {
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
SRWLOCK lock;
# else
CRITICAL_SECTION lock;
# endif
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLock lock;
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
@@ -74,11 +70,7 @@ malloc_mutex_lock(malloc_mutex_t *mutex)
if (isthreaded) {
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
AcquireSRWLockExclusive(&mutex->lock);
# else
EnterCriticalSection(&mutex->lock);
# endif
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockLock(&mutex->lock);
#else
@@ -93,11 +85,7 @@ malloc_mutex_unlock(malloc_mutex_t *mutex)
if (isthreaded) {
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
ReleaseSRWLockExclusive(&mutex->lock);
# else
LeaveCriticalSection(&mutex->lock);
# endif
#elif (defined(JEMALLOC_OSSPIN))
OSSpinLockUnlock(&mutex->lock);
#else

View File

@@ -1,48 +0,0 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#define JEMALLOC_CLOCK_GETTIME defined(_POSIX_MONOTONIC_CLOCK) \
&& _POSIX_MONOTONIC_CLOCK >= 0
typedef struct nstime_s nstime_t;
/* Maximum supported number of seconds (~584 years). */
#define NSTIME_SEC_MAX 18446744072
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct nstime_s {
uint64_t ns;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void nstime_init(nstime_t *time, uint64_t ns);
void nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec);
uint64_t nstime_ns(const nstime_t *time);
uint64_t nstime_sec(const nstime_t *time);
uint64_t nstime_nsec(const nstime_t *time);
void nstime_copy(nstime_t *time, const nstime_t *source);
int nstime_compare(const nstime_t *a, const nstime_t *b);
void nstime_add(nstime_t *time, const nstime_t *addend);
void nstime_subtract(nstime_t *time, const nstime_t *subtrahend);
void nstime_imultiply(nstime_t *time, uint64_t multiplier);
void nstime_idivide(nstime_t *time, uint64_t divisor);
uint64_t nstime_divide(const nstime_t *time, const nstime_t *divisor);
#ifdef JEMALLOC_JET
typedef bool (nstime_update_t)(nstime_t *);
extern nstime_update_t *nstime_update;
#else
bool nstime_update(nstime_t *time);
#endif
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -1,26 +0,0 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *pages_map(void *addr, size_t size);
void pages_unmap(void *addr, size_t size);
void *pages_trim(void *addr, size_t alloc_size, size_t leadsize,
size_t size);
bool pages_commit(void *addr, size_t size);
bool pages_decommit(void *addr, size_t size);
bool pages_purge(void *addr, size_t size);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -1,83 +1,44 @@
a0dalloc
a0calloc
a0free
a0malloc
arena_aalloc
arena_alloc_junk_small
arena_basic_stats_merge
arena_bin_index
arena_bin_info
arena_bitselm_get
arena_boot
arena_choose
arena_choose_hard
arena_chunk_alloc_huge
arena_chunk_cache_maybe_insert
arena_chunk_cache_maybe_remove
arena_chunk_dalloc_huge
arena_chunk_ralloc_huge_expand
arena_chunk_ralloc_huge_shrink
arena_chunk_ralloc_huge_similar
arena_cleanup
arena_dalloc
arena_dalloc_bin
arena_dalloc_bin_junked_locked
arena_dalloc_bin_locked
arena_dalloc_junk_large
arena_dalloc_junk_small
arena_dalloc_large
arena_dalloc_large_junked_locked
arena_dalloc_large_locked
arena_dalloc_small
arena_decay_tick
arena_decay_ticks
arena_decay_time_default_get
arena_decay_time_default_set
arena_decay_time_get
arena_decay_time_set
arena_dss_prec_get
arena_dss_prec_set
arena_get
arena_init
arena_lg_dirty_mult_default_get
arena_lg_dirty_mult_default_set
arena_lg_dirty_mult_get
arena_lg_dirty_mult_set
arena_malloc
arena_malloc_hard
arena_malloc_large
arena_malloc_small
arena_mapbits_allocated_get
arena_mapbits_binind_get
arena_mapbits_decommitted_get
arena_mapbits_dirty_get
arena_mapbits_get
arena_mapbits_internal_set
arena_mapbits_large_binind_set
arena_mapbits_large_get
arena_mapbits_large_set
arena_mapbits_large_size_get
arena_mapbits_size_decode
arena_mapbits_size_encode
arena_mapbits_small_runind_get
arena_mapbits_small_set
arena_mapbits_unallocated_set
arena_mapbits_unallocated_size_get
arena_mapbits_unallocated_size_set
arena_mapbits_unzeroed_get
arena_mapbits_unzeroed_set
arena_mapbitsp_get
arena_mapbitsp_read
arena_mapbitsp_write
arena_maxrun
arena_maybe_purge
arena_metadata_allocated_add
arena_metadata_allocated_get
arena_metadata_allocated_sub
arena_migrate
arena_miscelm_get
arena_miscelm_to_pageind
arena_miscelm_to_rpages
arena_mapp_get
arena_maxclass
arena_new
arena_node_alloc
arena_node_dalloc
arena_nthreads_dec
arena_nthreads_get
arena_nthreads_inc
arena_palloc
arena_postfork_child
arena_postfork_parent
@@ -85,106 +46,102 @@ arena_prefork
arena_prof_accum
arena_prof_accum_impl
arena_prof_accum_locked
arena_prof_ctx_get
arena_prof_ctx_set
arena_prof_promoted
arena_prof_tctx_get
arena_prof_tctx_reset
arena_prof_tctx_set
arena_ptr_small_binind_get
arena_purge
arena_purge_all
arena_quarantine_junk_small
arena_ralloc
arena_ralloc_junk_large
arena_ralloc_no_move
arena_rd_to_miscelm
arena_redzone_corruption
arena_run_regind
arena_run_to_miscelm
arena_salloc
arena_sdalloc
arena_stats_merge
arena_tcache_fill_small
arena_tdata_get
arena_tdata_get_hard
arenas
arenas_tdata_bypass_cleanup
arenas_tdata_cleanup
atomic_add_p
arenas_booted
arenas_cleanup
arenas_extend
arenas_initialized
arenas_lock
arenas_tls
arenas_tsd
arenas_tsd_boot
arenas_tsd_cleanup_wrapper
arenas_tsd_get
arenas_tsd_get_wrapper
arenas_tsd_init_head
arenas_tsd_set
atomic_add_u
atomic_add_uint32
atomic_add_uint64
atomic_add_z
atomic_cas_p
atomic_cas_u
atomic_cas_uint32
atomic_cas_uint64
atomic_cas_z
atomic_sub_p
atomic_sub_u
atomic_sub_uint32
atomic_sub_uint64
atomic_sub_z
base_alloc
base_boot
base_calloc
base_node_alloc
base_node_dealloc
base_postfork_child
base_postfork_parent
base_prefork
base_stats_get
bitmap_full
bitmap_get
bitmap_info_init
bitmap_info_ngroups
bitmap_init
bitmap_set
bitmap_sfu
bitmap_size
bitmap_unset
bootstrap_calloc
bootstrap_free
bootstrap_malloc
bt_init
buferror
chunk_alloc_base
chunk_alloc_cache
choose_arena
choose_arena_hard
chunk_alloc
chunk_alloc_dss
chunk_alloc_mmap
chunk_alloc_wrapper
chunk_boot
chunk_dalloc_arena
chunk_dalloc_cache
chunk_dalloc_mmap
chunk_dalloc_wrapper
chunk_deregister
chunk_dealloc
chunk_dealloc_mmap
chunk_dss_boot
chunk_dss_postfork_child
chunk_dss_postfork_parent
chunk_dss_prec_get
chunk_dss_prec_set
chunk_dss_prefork
chunk_hooks_default
chunk_hooks_get
chunk_hooks_set
chunk_in_dss
chunk_lookup
chunk_npages
chunk_postfork_child
chunk_postfork_parent
chunk_prefork
chunk_purge_arena
chunk_purge_wrapper
chunk_register
chunk_unmap
chunks_mtx
chunks_rtree
chunksize
chunksize_mask
ckh_bucket_search
ckh_count
ckh_delete
ckh_evict_reloc_insert
ckh_insert
ckh_isearch
ckh_iter
ckh_new
ckh_pointer_hash
ckh_pointer_keycomp
ckh_rebuild
ckh_remove
ckh_search
ckh_string_hash
ckh_string_keycomp
ckh_try_bucket_insert
ckh_try_insert
ctl_boot
ctl_bymib
ctl_byname
@@ -192,25 +149,7 @@ ctl_nametomib
ctl_postfork_child
ctl_postfork_parent
ctl_prefork
decay_ticker_get
dss_prec_names
extent_node_achunk_get
extent_node_achunk_set
extent_node_addr_get
extent_node_addr_set
extent_node_arena_get
extent_node_arena_set
extent_node_dirty_insert
extent_node_dirty_linkage_init
extent_node_dirty_remove
extent_node_init
extent_node_prof_tctx_get
extent_node_prof_tctx_set
extent_node_size_get
extent_node_size_set
extent_node_zeroed_get
extent_node_zeroed_set
extent_tree_ad_empty
extent_tree_ad_first
extent_tree_ad_insert
extent_tree_ad_iter
@@ -227,7 +166,6 @@ extent_tree_ad_reverse_iter
extent_tree_ad_reverse_iter_recurse
extent_tree_ad_reverse_iter_start
extent_tree_ad_search
extent_tree_szad_empty
extent_tree_szad_first
extent_tree_szad_insert
extent_tree_szad_iter
@@ -244,12 +182,6 @@ extent_tree_szad_reverse_iter
extent_tree_szad_reverse_iter_recurse
extent_tree_szad_reverse_iter_start
extent_tree_szad_search
ffs_llu
ffs_lu
ffs_u
ffs_u32
ffs_u64
ffs_zu
get_errno
hash
hash_fmix_32
@@ -261,49 +193,45 @@ hash_rotl_64
hash_x64_128
hash_x86_128
hash_x86_32
huge_aalloc
huge_allocated
huge_boot
huge_dalloc
huge_dalloc_junk
huge_dss_prec_get
huge_malloc
huge_mtx
huge_ndalloc
huge_nmalloc
huge_palloc
huge_prof_tctx_get
huge_prof_tctx_reset
huge_prof_tctx_set
huge_postfork_child
huge_postfork_parent
huge_prefork
huge_prof_ctx_get
huge_prof_ctx_set
huge_ralloc
huge_ralloc_no_move
huge_salloc
iaalloc
iallocztm
iallocm
icalloc
icalloct
idalloc
idalloct
idalloctm
imalloc
imalloct
in_valgrind
index2size
index2size_compute
index2size_lookup
index2size_tab
ipalloc
ipalloct
ipallocztm
iqalloc
iqalloct
iralloc
iralloct
iralloct_realign
isalloc
isdalloct
isqalloc
isthreaded
ivsalloc
ixalloc
jemalloc_postfork_child
jemalloc_postfork_parent
jemalloc_prefork
large_maxclass
lg_floor
malloc_cprintf
malloc_mutex_init
malloc_mutex_lock
@@ -314,8 +242,7 @@ malloc_mutex_unlock
malloc_printf
malloc_snprintf
malloc_strtoumax
malloc_tsd_boot0
malloc_tsd_boot1
malloc_tsd_boot
malloc_tsd_cleanup_register
malloc_tsd_dalloc
malloc_tsd_malloc
@@ -324,32 +251,16 @@ malloc_vcprintf
malloc_vsnprintf
malloc_write
map_bias
map_misc_offset
mb_write
mutex_boot
narenas_tdata_cleanup
narenas_auto
narenas_total
narenas_total_get
ncpus
nhbins
nstime_add
nstime_compare
nstime_copy
nstime_divide
nstime_idivide
nstime_imultiply
nstime_init
nstime_init2
nstime_ns
nstime_nsec
nstime_sec
nstime_subtract
nstime_update
opt_abort
opt_decay_time
opt_dss
opt_junk
opt_junk_alloc
opt_junk_free
opt_lg_chunk
opt_lg_dirty_mult
opt_lg_prof_interval
@@ -363,108 +274,84 @@ opt_prof_final
opt_prof_gdump
opt_prof_leak
opt_prof_prefix
opt_prof_thread_active_init
opt_purge
opt_quarantine
opt_redzone
opt_stats_print
opt_tcache
opt_utrace
opt_valgrind
opt_xmalloc
opt_zero
p2rz
pages_commit
pages_decommit
pages_map
pages_purge
pages_trim
pages_unmap
pow2_ceil_u32
pow2_ceil_u64
pow2_ceil_zu
prng_lg_range
prng_range
prof_active_get
prof_active_get_unlocked
prof_active_set
prof_alloc_prep
prof_alloc_rollback
pow2_ceil
prof_backtrace
prof_boot0
prof_boot1
prof_boot2
prof_dump_header
prof_bt_count
prof_ctx_get
prof_ctx_set
prof_dump_open
prof_free
prof_free_sampled_object
prof_gdump
prof_gdump_get
prof_gdump_get_unlocked
prof_gdump_set
prof_gdump_val
prof_idump
prof_interval
prof_lookup
prof_malloc
prof_malloc_sample_object
prof_mdump
prof_postfork_child
prof_postfork_parent
prof_prefork
prof_promote
prof_realloc
prof_reset
prof_sample_accum_update
prof_sample_threshold_update
prof_tctx_get
prof_tctx_reset
prof_tctx_set
prof_tdata_booted
prof_tdata_cleanup
prof_tdata_get
prof_tdata_init
prof_tdata_reinit
prof_thread_active_get
prof_thread_active_init_get
prof_thread_active_init_set
prof_thread_active_set
prof_thread_name_get
prof_thread_name_set
purge_mode_names
prof_tdata_initialized
prof_tdata_tls
prof_tdata_tsd
prof_tdata_tsd_boot
prof_tdata_tsd_cleanup_wrapper
prof_tdata_tsd_get
prof_tdata_tsd_get_wrapper
prof_tdata_tsd_init_head
prof_tdata_tsd_set
quarantine
quarantine_alloc_hook
quarantine_alloc_hook_work
quarantine_boot
quarantine_booted
quarantine_cleanup
quarantine_init
quarantine_tls
quarantine_tsd
quarantine_tsd_boot
quarantine_tsd_cleanup_wrapper
quarantine_tsd_get
quarantine_tsd_get_wrapper
quarantine_tsd_init_head
quarantine_tsd_set
register_zone
rtree_child_read
rtree_child_read_hard
rtree_child_tryread
rtree_delete
rtree_get
rtree_get_locked
rtree_new
rtree_node_valid
rtree_postfork_child
rtree_postfork_parent
rtree_prefork
rtree_set
rtree_start_level
rtree_subkey
rtree_subtree_read
rtree_subtree_read_hard
rtree_subtree_tryread
rtree_val_read
rtree_val_write
run_quantize_ceil
run_quantize_floor
run_quantize_max
s2u
s2u_compute
s2u_lookup
sa2u
set_errno
size2index
size2index_compute
size2index_lookup
size2index_tab
small_size2bin
stats_cactive
stats_cactive_add
stats_cactive_get
stats_cactive_sub
stats_chunks
stats_print
tcache_alloc_easy
tcache_alloc_large
@@ -472,72 +359,55 @@ tcache_alloc_small
tcache_alloc_small_hard
tcache_arena_associate
tcache_arena_dissociate
tcache_arena_reassociate
tcache_bin_flush_large
tcache_bin_flush_small
tcache_bin_info
tcache_boot
tcache_cleanup
tcache_boot0
tcache_boot1
tcache_booted
tcache_create
tcache_dalloc_large
tcache_dalloc_small
tcache_enabled_cleanup
tcache_destroy
tcache_enabled_booted
tcache_enabled_get
tcache_enabled_initialized
tcache_enabled_set
tcache_enabled_tls
tcache_enabled_tsd
tcache_enabled_tsd_boot
tcache_enabled_tsd_cleanup_wrapper
tcache_enabled_tsd_get
tcache_enabled_tsd_get_wrapper
tcache_enabled_tsd_init_head
tcache_enabled_tsd_set
tcache_event
tcache_event_hard
tcache_flush
tcache_get
tcache_get_hard
tcache_initialized
tcache_maxclass
tcache_salloc
tcache_stats_merge
tcaches
tcaches_create
tcaches_destroy
tcaches_flush
tcaches_get
thread_allocated_cleanup
thread_deallocated_cleanup
ticker_copy
ticker_init
ticker_read
ticker_tick
ticker_ticks
tsd_arena_get
tsd_arena_set
tsd_boot
tsd_boot0
tsd_boot1
tsd_booted
tsd_cleanup
tsd_cleanup_wrapper
tsd_fetch
tsd_get
tsd_wrapper_get
tsd_wrapper_set
tsd_initialized
tcache_thread_cleanup
tcache_tls
tcache_tsd
tcache_tsd_boot
tcache_tsd_cleanup_wrapper
tcache_tsd_get
tcache_tsd_get_wrapper
tcache_tsd_init_head
tcache_tsd_set
thread_allocated_booted
thread_allocated_initialized
thread_allocated_tls
thread_allocated_tsd
thread_allocated_tsd_boot
thread_allocated_tsd_cleanup_wrapper
thread_allocated_tsd_get
thread_allocated_tsd_get_wrapper
thread_allocated_tsd_init_head
thread_allocated_tsd_set
tsd_init_check_recursion
tsd_init_finish
tsd_init_head
tsd_nominal
tsd_prof_tdata_get
tsd_prof_tdata_set
tsd_quarantine_get
tsd_quarantine_set
tsd_set
tsd_tcache_enabled_get
tsd_tcache_enabled_set
tsd_tcache_get
tsd_tcache_set
tsd_thread_allocated_get
tsd_thread_allocated_set
tsd_thread_deallocated_get
tsd_thread_deallocated_set
tsd_tls
tsd_tsd
u2rz
valgrind_freelike_block
valgrind_make_mem_defined
valgrind_make_mem_noaccess
valgrind_make_mem_undefined

View File

@@ -15,12 +15,34 @@
* See Knuth's TAOCP 3rd Ed., Vol. 2, pg. 17 for details on these constraints.
*
* This choice of m has the disadvantage that the quality of the bits is
* proportional to bit position. For example, the lowest bit has a cycle of 2,
* proportional to bit position. For example. the lowest bit has a cycle of 2,
* the next has a cycle of 4, etc. For this reason, we prefer to use the upper
* bits.
*
* Macro parameters:
* uint32_t r : Result.
* unsigned lg_range : (0..32], number of least significant bits to return.
* uint32_t state : Seed value.
* const uint32_t a, c : See above discussion.
*/
#define PRNG_A UINT64_C(6364136223846793005)
#define PRNG_C UINT64_C(1442695040888963407)
#define prng32(r, lg_range, state, a, c) do { \
assert(lg_range > 0); \
assert(lg_range <= 32); \
\
r = (state * (a)) + (c); \
state = r; \
r >>= (32 - lg_range); \
} while (false)
/* Same as prng32(), but 64 bits of pseudo-randomness, using uint64_t. */
#define prng64(r, lg_range, state, a, c) do { \
assert(lg_range > 0); \
assert(lg_range <= 64); \
\
r = (state * (a)) + (c); \
state = r; \
r >>= (64 - lg_range); \
} while (false)
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
@@ -34,46 +56,5 @@
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
uint64_t prng_lg_range(uint64_t *state, unsigned lg_range);
uint64_t prng_range(uint64_t *state, uint64_t range);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_PRNG_C_))
JEMALLOC_ALWAYS_INLINE uint64_t
prng_lg_range(uint64_t *state, unsigned lg_range)
{
uint64_t ret;
assert(lg_range > 0);
assert(lg_range <= 64);
ret = (*state * PRNG_A) + PRNG_C;
*state = ret;
ret >>= (64 - lg_range);
return (ret);
}
JEMALLOC_ALWAYS_INLINE uint64_t
prng_range(uint64_t *state, uint64_t range)
{
uint64_t ret;
unsigned lg_range;
assert(range > 1);
/* Compute the ceiling of lg(range). */
lg_range = ffs_u64(pow2_ceil_u64(range)) - 1;
/* Generate a result in [0..range) via repeated trial. */
do {
ret = prng_lg_range(state, lg_range);
} while (ret >= range);
return (ret);
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -3,8 +3,8 @@
typedef struct prof_bt_s prof_bt_t;
typedef struct prof_cnt_s prof_cnt_t;
typedef struct prof_tctx_s prof_tctx_t;
typedef struct prof_gctx_s prof_gctx_t;
typedef struct prof_thr_cnt_s prof_thr_cnt_t;
typedef struct prof_ctx_s prof_ctx_t;
typedef struct prof_tdata_s prof_tdata_t;
/* Option defaults. */
@@ -23,6 +23,9 @@ typedef struct prof_tdata_s prof_tdata_t;
*/
#define PROF_BT_MAX 128
/* Maximum number of backtraces to store in each per thread LRU cache. */
#define PROF_TCMAX 1024
/* Initial hash table size. */
#define PROF_CKH_MINITEMS 64
@@ -33,17 +36,11 @@ typedef struct prof_tdata_s prof_tdata_t;
#define PROF_PRINTF_BUFSIZE 128
/*
* Number of mutexes shared among all gctx's. No space is allocated for these
* Number of mutexes shared among all ctx's. No space is allocated for these
* unless profiling is enabled, so it's okay to over-provision.
*/
#define PROF_NCTX_LOCKS 1024
/*
* Number of mutexes shared among all tdata's. No space is allocated for these
* unless profiling is enabled, so it's okay to over-provision.
*/
#define PROF_NTDATA_LOCKS 256
/*
* prof_tdata pointers close to NULL are used to encode state information that
* is used for cleaning up during thread shutdown.
@@ -66,186 +63,141 @@ struct prof_bt_s {
/* Data structure passed to libgcc _Unwind_Backtrace() callback functions. */
typedef struct {
prof_bt_t *bt;
unsigned nignore;
unsigned max;
} prof_unwind_data_t;
#endif
struct prof_cnt_s {
/* Profiling counters. */
uint64_t curobjs;
uint64_t curbytes;
/*
* Profiling counters. An allocation/deallocation pair can operate on
* different prof_thr_cnt_t objects that are linked into the same
* prof_ctx_t cnts_ql, so it is possible for the cur* counters to go
* negative. In principle it is possible for the *bytes counters to
* overflow/underflow, but a general solution would require something
* like 128-bit counters; this implementation doesn't bother to solve
* that problem.
*/
int64_t curobjs;
int64_t curbytes;
uint64_t accumobjs;
uint64_t accumbytes;
};
typedef enum {
prof_tctx_state_initializing,
prof_tctx_state_nominal,
prof_tctx_state_dumping,
prof_tctx_state_purgatory /* Dumper must finish destroying. */
} prof_tctx_state_t;
struct prof_thr_cnt_s {
/* Linkage into prof_ctx_t's cnts_ql. */
ql_elm(prof_thr_cnt_t) cnts_link;
struct prof_tctx_s {
/* Thread data for thread that performed the allocation. */
prof_tdata_t *tdata;
/* Linkage into thread's LRU. */
ql_elm(prof_thr_cnt_t) lru_link;
/*
* Copy of tdata->thr_{uid,discrim}, necessary because tdata may be
* defunct during teardown.
* Associated context. If a thread frees an object that it did not
* allocate, it is possible that the context is not cached in the
* thread's hash table, in which case it must be able to look up the
* context, insert a new prof_thr_cnt_t into the thread's hash table,
* and link it into the prof_ctx_t's cnts_ql.
*/
uint64_t thr_uid;
uint64_t thr_discrim;
prof_ctx_t *ctx;
/* Profiling counters, protected by tdata->lock. */
/*
* Threads use memory barriers to update the counters. Since there is
* only ever one writer, the only challenge is for the reader to get a
* consistent read of the counters.
*
* The writer uses this series of operations:
*
* 1) Increment epoch to an odd number.
* 2) Update counters.
* 3) Increment epoch to an even number.
*
* The reader must assure 1) that the epoch is even while it reads the
* counters, and 2) that the epoch doesn't change between the time it
* starts and finishes reading the counters.
*/
unsigned epoch;
/* Profiling counters. */
prof_cnt_t cnts;
/* Associated global context. */
prof_gctx_t *gctx;
/*
* UID that distinguishes multiple tctx's created by the same thread,
* but coexisting in gctx->tctxs. There are two ways that such
* coexistence can occur:
* - A dumper thread can cause a tctx to be retained in the purgatory
* state.
* - Although a single "producer" thread must create all tctx's which
* share the same thr_uid, multiple "consumers" can each concurrently
* execute portions of prof_tctx_destroy(). prof_tctx_destroy() only
* gets called once each time cnts.cur{objs,bytes} drop to 0, but this
* threshold can be hit again before the first consumer finishes
* executing prof_tctx_destroy().
*/
uint64_t tctx_uid;
/* Linkage into gctx's tctxs. */
rb_node(prof_tctx_t) tctx_link;
/*
* True during prof_alloc_prep()..prof_malloc_sample_object(), prevents
* sample vs destroy race.
*/
bool prepared;
/* Current dump-related state, protected by gctx->lock. */
prof_tctx_state_t state;
/*
* Copy of cnts snapshotted during early dump phase, protected by
* dump_mtx.
*/
prof_cnt_t dump_cnts;
};
typedef rb_tree(prof_tctx_t) prof_tctx_tree_t;
struct prof_gctx_s {
/* Protects nlimbo, cnt_summed, and tctxs. */
struct prof_ctx_s {
/* Associated backtrace. */
prof_bt_t *bt;
/* Protects nlimbo, cnt_merged, and cnts_ql. */
malloc_mutex_t *lock;
/*
* Number of threads that currently cause this gctx to be in a state of
* Number of threads that currently cause this ctx to be in a state of
* limbo due to one of:
* - Initializing this gctx.
* - Initializing per thread counters associated with this gctx.
* - Preparing to destroy this gctx.
* - Dumping a heap profile that includes this gctx.
* - Initializing per thread counters associated with this ctx.
* - Preparing to destroy this ctx.
* - Dumping a heap profile that includes this ctx.
* nlimbo must be 1 (single destroyer) in order to safely destroy the
* gctx.
* ctx.
*/
unsigned nlimbo;
/*
* Tree of profile counters, one for each thread that has allocated in
* this context.
*/
prof_tctx_tree_t tctxs;
/* Linkage for tree of contexts to be dumped. */
rb_node(prof_gctx_t) dump_link;
/* Temporary storage for summation during dump. */
prof_cnt_t cnt_summed;
/* Associated backtrace. */
prof_bt_t bt;
/* When threads exit, they merge their stats into cnt_merged. */
prof_cnt_t cnt_merged;
/* Backtrace vector, variable size, referred to by bt. */
void *vec[1];
/*
* List of profile counters, one for each thread that has allocated in
* this context.
*/
ql_head(prof_thr_cnt_t) cnts_ql;
/* Linkage for list of contexts to be dumped. */
ql_elm(prof_ctx_t) dump_link;
};
typedef rb_tree(prof_gctx_t) prof_gctx_tree_t;
typedef ql_head(prof_ctx_t) prof_ctx_list_t;
struct prof_tdata_s {
malloc_mutex_t *lock;
/* Monotonically increasing unique thread identifier. */
uint64_t thr_uid;
/*
* Monotonically increasing discriminator among tdata structures
* associated with the same thr_uid.
* Hash of (prof_bt_t *)-->(prof_thr_cnt_t *). Each thread keeps a
* cache of backtraces, with associated thread-specific prof_thr_cnt_t
* objects. Other threads may read the prof_thr_cnt_t contents, but no
* others will ever write them.
*
* Upon thread exit, the thread must merge all the prof_thr_cnt_t
* counter data into the associated prof_ctx_t objects, and unlink/free
* the prof_thr_cnt_t objects.
*/
uint64_t thr_discrim;
ckh_t bt2cnt;
/* Included in heap profile dumps if non-NULL. */
char *thread_name;
/* LRU for contents of bt2cnt. */
ql_head(prof_thr_cnt_t) lru_ql;
bool attached;
bool expired;
rb_node(prof_tdata_t) tdata_link;
/*
* Counter used to initialize prof_tctx_t's tctx_uid. No locking is
* necessary when incrementing this field, because only one thread ever
* does so.
*/
uint64_t tctx_uid_next;
/*
* Hash of (prof_bt_t *)-->(prof_tctx_t *). Each thread tracks
* backtraces for which it has non-zero allocation/deallocation counters
* associated with thread-specific prof_tctx_t objects. Other threads
* may write to prof_tctx_t contents when freeing associated objects.
*/
ckh_t bt2tctx;
/* Backtrace vector, used for calls to prof_backtrace(). */
void **vec;
/* Sampling state. */
uint64_t prng_state;
uint64_t bytes_until_sample;
uint64_t threshold;
uint64_t accum;
/* State used to avoid dumping while operating on prof internals. */
bool enq;
bool enq_idump;
bool enq_gdump;
/*
* Set to true during an early dump phase for tdata's which are
* currently being dumped. New threads' tdata's have this initialized
* to false so that they aren't accidentally included in later dump
* phases.
*/
bool dumping;
/*
* True if profiling is active for this tdata's thread
* (thread.prof.active mallctl).
*/
bool active;
/* Temporary storage for summation during dump. */
prof_cnt_t cnt_summed;
/* Backtrace vector, used for calls to prof_backtrace(). */
void *vec[PROF_BT_MAX];
};
typedef rb_tree(prof_tdata_t) prof_tdata_tree_t;
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
extern bool opt_prof;
/*
* Even if opt_prof is true, sampling can be temporarily disabled by setting
* opt_prof_active to false. No locking is used when updating opt_prof_active,
* so there are no guarantees regarding how long it will take for all threads
* to notice state changes.
*/
extern bool opt_prof_active;
extern bool opt_prof_thread_active_init;
extern size_t opt_lg_prof_sample; /* Mean bytes between samples. */
extern ssize_t opt_lg_prof_interval; /* lg(prof_interval). */
extern bool opt_prof_gdump; /* High-water memory dumping. */
@@ -259,12 +211,6 @@ extern char opt_prof_prefix[
#endif
1];
/* Accessed via prof_active_[gs]et{_unlocked,}(). */
extern bool prof_active;
/* Accessed via prof_gdump_[gs]et{_unlocked,}(). */
extern bool prof_gdump_val;
/*
* Profile dump interval, measured in bytes allocated. Each arena triggers a
* profile dump when it reaches this threshold. The effect is that the
@@ -275,269 +221,391 @@ extern bool prof_gdump_val;
extern uint64_t prof_interval;
/*
* Initialized as opt_lg_prof_sample, and potentially modified during profiling
* resets.
* If true, promote small sampled objects to large objects, since small run
* headers do not have embedded profile context pointers.
*/
extern size_t lg_prof_sample;
extern bool prof_promote;
void prof_alloc_rollback(tsd_t *tsd, prof_tctx_t *tctx, bool updated);
void prof_malloc_sample_object(const void *ptr, size_t usize,
prof_tctx_t *tctx);
void prof_free_sampled_object(tsd_t *tsd, size_t usize, prof_tctx_t *tctx);
void bt_init(prof_bt_t *bt, void **vec);
void prof_backtrace(prof_bt_t *bt);
prof_tctx_t *prof_lookup(tsd_t *tsd, prof_bt_t *bt);
void prof_backtrace(prof_bt_t *bt, unsigned nignore);
prof_thr_cnt_t *prof_lookup(prof_bt_t *bt);
#ifdef JEMALLOC_JET
size_t prof_tdata_count(void);
size_t prof_bt_count(void);
const prof_cnt_t *prof_cnt_all(void);
typedef int (prof_dump_open_t)(bool, const char *);
extern prof_dump_open_t *prof_dump_open;
typedef bool (prof_dump_header_t)(bool, const prof_cnt_t *);
extern prof_dump_header_t *prof_dump_header;
#endif
void prof_idump(void);
bool prof_mdump(const char *filename);
void prof_gdump(void);
prof_tdata_t *prof_tdata_init(tsd_t *tsd);
prof_tdata_t *prof_tdata_reinit(tsd_t *tsd, prof_tdata_t *tdata);
void prof_reset(tsd_t *tsd, size_t lg_sample);
void prof_tdata_cleanup(tsd_t *tsd);
const char *prof_thread_name_get(void);
bool prof_active_get(void);
bool prof_active_set(bool active);
int prof_thread_name_set(tsd_t *tsd, const char *thread_name);
bool prof_thread_active_get(void);
bool prof_thread_active_set(bool active);
bool prof_thread_active_init_get(void);
bool prof_thread_active_init_set(bool active_init);
bool prof_gdump_get(void);
bool prof_gdump_set(bool active);
prof_tdata_t *prof_tdata_init(void);
void prof_tdata_cleanup(void *arg);
void prof_boot0(void);
void prof_boot1(void);
bool prof_boot2(void);
void prof_prefork(void);
void prof_postfork_parent(void);
void prof_postfork_child(void);
void prof_sample_threshold_update(prof_tdata_t *tdata);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#define PROF_ALLOC_PREP(nignore, size, ret) do { \
prof_tdata_t *prof_tdata; \
prof_bt_t bt; \
\
assert(size == s2u(size)); \
\
prof_tdata = prof_tdata_get(true); \
if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX) { \
if (prof_tdata != NULL) \
ret = (prof_thr_cnt_t *)(uintptr_t)1U; \
else \
ret = NULL; \
break; \
} \
\
if (opt_prof_active == false) { \
/* Sampling is currently inactive, so avoid sampling. */\
ret = (prof_thr_cnt_t *)(uintptr_t)1U; \
} else if (opt_lg_prof_sample == 0) { \
/* Don't bother with sampling logic, since sampling */\
/* interval is 1. */\
bt_init(&bt, prof_tdata->vec); \
prof_backtrace(&bt, nignore); \
ret = prof_lookup(&bt); \
} else { \
if (prof_tdata->threshold == 0) { \
/* Initialize. Seed the prng differently for */\
/* each thread. */\
prof_tdata->prng_state = \
(uint64_t)(uintptr_t)&size; \
prof_sample_threshold_update(prof_tdata); \
} \
\
/* Determine whether to capture a backtrace based on */\
/* whether size is enough for prof_accum to reach */\
/* prof_tdata->threshold. However, delay updating */\
/* these variables until prof_{m,re}alloc(), because */\
/* we don't know for sure that the allocation will */\
/* succeed. */\
/* */\
/* Use subtraction rather than addition to avoid */\
/* potential integer overflow. */\
if (size >= prof_tdata->threshold - \
prof_tdata->accum) { \
bt_init(&bt, prof_tdata->vec); \
prof_backtrace(&bt, nignore); \
ret = prof_lookup(&bt); \
} else \
ret = (prof_thr_cnt_t *)(uintptr_t)1U; \
} \
} while (0)
#ifndef JEMALLOC_ENABLE_INLINE
bool prof_active_get_unlocked(void);
bool prof_gdump_get_unlocked(void);
prof_tdata_t *prof_tdata_get(tsd_t *tsd, bool create);
bool prof_sample_accum_update(tsd_t *tsd, size_t usize, bool commit,
prof_tdata_t **tdata_out);
prof_tctx_t *prof_alloc_prep(tsd_t *tsd, size_t usize, bool prof_active,
bool update);
prof_tctx_t *prof_tctx_get(const void *ptr);
void prof_tctx_set(const void *ptr, size_t usize, prof_tctx_t *tctx);
void prof_tctx_reset(const void *ptr, size_t usize, const void *old_ptr,
prof_tctx_t *tctx);
void prof_malloc_sample_object(const void *ptr, size_t usize,
prof_tctx_t *tctx);
void prof_malloc(const void *ptr, size_t usize, prof_tctx_t *tctx);
void prof_realloc(tsd_t *tsd, const void *ptr, size_t usize,
prof_tctx_t *tctx, bool prof_active, bool updated, const void *old_ptr,
size_t old_usize, prof_tctx_t *old_tctx);
void prof_free(tsd_t *tsd, const void *ptr, size_t usize);
malloc_tsd_protos(JEMALLOC_ATTR(unused), prof_tdata, prof_tdata_t *)
prof_tdata_t *prof_tdata_get(bool create);
void prof_sample_threshold_update(prof_tdata_t *prof_tdata);
prof_ctx_t *prof_ctx_get(const void *ptr);
void prof_ctx_set(const void *ptr, size_t usize, prof_ctx_t *ctx);
bool prof_sample_accum_update(size_t size);
void prof_malloc(const void *ptr, size_t usize, prof_thr_cnt_t *cnt);
void prof_realloc(const void *ptr, size_t usize, prof_thr_cnt_t *cnt,
size_t old_usize, prof_ctx_t *old_ctx);
void prof_free(const void *ptr, size_t size);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_PROF_C_))
JEMALLOC_ALWAYS_INLINE bool
prof_active_get_unlocked(void)
/* Thread-specific backtrace cache, used to reduce bt2ctx contention. */
malloc_tsd_externs(prof_tdata, prof_tdata_t *)
malloc_tsd_funcs(JEMALLOC_INLINE, prof_tdata, prof_tdata_t *, NULL,
prof_tdata_cleanup)
JEMALLOC_INLINE prof_tdata_t *
prof_tdata_get(bool create)
{
prof_tdata_t *prof_tdata;
cassert(config_prof);
prof_tdata = *prof_tdata_tsd_get();
if (create && prof_tdata == NULL)
prof_tdata = prof_tdata_init();
return (prof_tdata);
}
JEMALLOC_INLINE void
prof_sample_threshold_update(prof_tdata_t *prof_tdata)
{
/*
* The body of this function is compiled out unless heap profiling is
* enabled, so that it is possible to compile jemalloc with floating
* point support completely disabled. Avoiding floating point code is
* important on memory-constrained systems, but it also enables a
* workaround for versions of glibc that don't properly save/restore
* floating point registers during dynamic lazy symbol loading (which
* internally calls into whatever malloc implementation happens to be
* integrated into the application). Note that some compilers (e.g.
* gcc 4.8) may use floating point registers for fast memory moves, so
* jemalloc must be compiled with such optimizations disabled (e.g.
* -mno-sse) in order for the workaround to be complete.
*/
#ifdef JEMALLOC_PROF
uint64_t r;
double u;
cassert(config_prof);
/*
* Even if opt_prof is true, sampling can be temporarily disabled by
* setting prof_active to false. No locking is used when reading
* prof_active in the fast path, so there are no guarantees regarding
* how long it will take for all threads to notice state changes.
* Compute sample threshold as a geometrically distributed random
* variable with mean (2^opt_lg_prof_sample).
*
* __ __
* | log(u) | 1
* prof_tdata->threshold = | -------- |, where p = -------------------
* | log(1-p) | opt_lg_prof_sample
* 2
*
* For more information on the math, see:
*
* Non-Uniform Random Variate Generation
* Luc Devroye
* Springer-Verlag, New York, 1986
* pp 500
* (http://luc.devroye.org/rnbookindex.html)
*/
return (prof_active);
prng64(r, 53, prof_tdata->prng_state,
UINT64_C(6364136223846793005), UINT64_C(1442695040888963407));
u = (double)r * (1.0/9007199254740992.0L);
prof_tdata->threshold = (uint64_t)(log(u) /
log(1.0 - (1.0 / (double)((uint64_t)1U << opt_lg_prof_sample))))
+ (uint64_t)1U;
#endif
}
JEMALLOC_ALWAYS_INLINE bool
prof_gdump_get_unlocked(void)
{
/*
* No locking is used when reading prof_gdump_val in the fast path, so
* there are no guarantees regarding how long it will take for all
* threads to notice state changes.
*/
return (prof_gdump_val);
}
JEMALLOC_ALWAYS_INLINE prof_tdata_t *
prof_tdata_get(tsd_t *tsd, bool create)
{
prof_tdata_t *tdata;
cassert(config_prof);
tdata = tsd_prof_tdata_get(tsd);
if (create) {
if (unlikely(tdata == NULL)) {
if (tsd_nominal(tsd)) {
tdata = prof_tdata_init(tsd);
tsd_prof_tdata_set(tsd, tdata);
}
} else if (unlikely(tdata->expired)) {
tdata = prof_tdata_reinit(tsd, tdata);
tsd_prof_tdata_set(tsd, tdata);
}
assert(tdata == NULL || tdata->attached);
}
return (tdata);
}
JEMALLOC_ALWAYS_INLINE prof_tctx_t *
prof_tctx_get(const void *ptr)
JEMALLOC_INLINE prof_ctx_t *
prof_ctx_get(const void *ptr)
{
prof_ctx_t *ret;
arena_chunk_t *chunk;
cassert(config_prof);
assert(ptr != NULL);
return (arena_prof_tctx_get(ptr));
}
JEMALLOC_ALWAYS_INLINE void
prof_tctx_set(const void *ptr, size_t usize, prof_tctx_t *tctx)
{
cassert(config_prof);
assert(ptr != NULL);
arena_prof_tctx_set(ptr, usize, tctx);
}
JEMALLOC_ALWAYS_INLINE void
prof_tctx_reset(const void *ptr, size_t usize, const void *old_ptr,
prof_tctx_t *old_tctx)
{
cassert(config_prof);
assert(ptr != NULL);
arena_prof_tctx_reset(ptr, usize, old_ptr, old_tctx);
}
JEMALLOC_ALWAYS_INLINE bool
prof_sample_accum_update(tsd_t *tsd, size_t usize, bool update,
prof_tdata_t **tdata_out)
{
prof_tdata_t *tdata;
cassert(config_prof);
tdata = prof_tdata_get(tsd, true);
if (unlikely((uintptr_t)tdata <= (uintptr_t)PROF_TDATA_STATE_MAX))
tdata = NULL;
if (tdata_out != NULL)
*tdata_out = tdata;
if (unlikely(tdata == NULL))
return (true);
if (likely(tdata->bytes_until_sample >= usize)) {
if (update)
tdata->bytes_until_sample -= usize;
return (true);
} else {
/* Compute new sample threshold. */
if (update)
prof_sample_threshold_update(tdata);
return (!tdata->active);
}
}
JEMALLOC_ALWAYS_INLINE prof_tctx_t *
prof_alloc_prep(tsd_t *tsd, size_t usize, bool prof_active, bool update)
{
prof_tctx_t *ret;
prof_tdata_t *tdata;
prof_bt_t bt;
assert(usize == s2u(usize));
if (!prof_active || likely(prof_sample_accum_update(tsd, usize, update,
&tdata)))
ret = (prof_tctx_t *)(uintptr_t)1U;
else {
bt_init(&bt, tdata->vec);
prof_backtrace(&bt);
ret = prof_lookup(tsd, &bt);
}
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (chunk != ptr) {
/* Region. */
ret = arena_prof_ctx_get(ptr);
} else
ret = huge_prof_ctx_get(ptr);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void
prof_malloc(const void *ptr, size_t usize, prof_tctx_t *tctx)
JEMALLOC_INLINE void
prof_ctx_set(const void *ptr, size_t usize, prof_ctx_t *ctx)
{
arena_chunk_t *chunk;
cassert(config_prof);
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (chunk != ptr) {
/* Region. */
arena_prof_ctx_set(ptr, usize, ctx);
} else
huge_prof_ctx_set(ptr, ctx);
}
JEMALLOC_INLINE bool
prof_sample_accum_update(size_t size)
{
prof_tdata_t *prof_tdata;
cassert(config_prof);
/* Sampling logic is unnecessary if the interval is 1. */
assert(opt_lg_prof_sample != 0);
prof_tdata = prof_tdata_get(false);
if ((uintptr_t)prof_tdata <= (uintptr_t)PROF_TDATA_STATE_MAX)
return (true);
/* Take care to avoid integer overflow. */
if (size >= prof_tdata->threshold - prof_tdata->accum) {
prof_tdata->accum -= (prof_tdata->threshold - size);
/* Compute new sample threshold. */
prof_sample_threshold_update(prof_tdata);
while (prof_tdata->accum >= prof_tdata->threshold) {
prof_tdata->accum -= prof_tdata->threshold;
prof_sample_threshold_update(prof_tdata);
}
return (false);
} else {
prof_tdata->accum += size;
return (true);
}
}
JEMALLOC_INLINE void
prof_malloc(const void *ptr, size_t usize, prof_thr_cnt_t *cnt)
{
cassert(config_prof);
assert(ptr != NULL);
assert(usize == isalloc(ptr, true));
if (unlikely((uintptr_t)tctx > (uintptr_t)1U))
prof_malloc_sample_object(ptr, usize, tctx);
else
prof_tctx_set(ptr, usize, (prof_tctx_t *)(uintptr_t)1U);
}
JEMALLOC_ALWAYS_INLINE void
prof_realloc(tsd_t *tsd, const void *ptr, size_t usize, prof_tctx_t *tctx,
bool prof_active, bool updated, const void *old_ptr, size_t old_usize,
prof_tctx_t *old_tctx)
{
bool sampled, old_sampled;
cassert(config_prof);
assert(ptr != NULL || (uintptr_t)tctx <= (uintptr_t)1U);
if (prof_active && !updated && ptr != NULL) {
assert(usize == isalloc(ptr, true));
if (prof_sample_accum_update(tsd, usize, true, NULL)) {
if (opt_lg_prof_sample != 0) {
if (prof_sample_accum_update(usize)) {
/*
* Don't sample. The usize passed to prof_alloc_prep()
* was larger than what actually got allocated, so a
* backtrace was captured for this allocation, even
* though its actual usize was insufficient to cross the
* sample threshold.
* Don't sample. For malloc()-like allocation, it is
* always possible to tell in advance how large an
* object's usable size will be, so there should never
* be a difference between the usize passed to
* PROF_ALLOC_PREP() and prof_malloc().
*/
tctx = (prof_tctx_t *)(uintptr_t)1U;
assert((uintptr_t)cnt == (uintptr_t)1U);
}
}
sampled = ((uintptr_t)tctx > (uintptr_t)1U);
old_sampled = ((uintptr_t)old_tctx > (uintptr_t)1U);
if ((uintptr_t)cnt > (uintptr_t)1U) {
prof_ctx_set(ptr, usize, cnt->ctx);
if (unlikely(sampled))
prof_malloc_sample_object(ptr, usize, tctx);
else
prof_tctx_reset(ptr, usize, old_ptr, old_tctx);
if (unlikely(old_sampled))
prof_free_sampled_object(tsd, old_usize, old_tctx);
cnt->epoch++;
/*********/
mb_write();
/*********/
cnt->cnts.curobjs++;
cnt->cnts.curbytes += usize;
if (opt_prof_accum) {
cnt->cnts.accumobjs++;
cnt->cnts.accumbytes += usize;
}
/*********/
mb_write();
/*********/
cnt->epoch++;
/*********/
mb_write();
/*********/
} else
prof_ctx_set(ptr, usize, (prof_ctx_t *)(uintptr_t)1U);
}
JEMALLOC_ALWAYS_INLINE void
prof_free(tsd_t *tsd, const void *ptr, size_t usize)
JEMALLOC_INLINE void
prof_realloc(const void *ptr, size_t usize, prof_thr_cnt_t *cnt,
size_t old_usize, prof_ctx_t *old_ctx)
{
prof_tctx_t *tctx = prof_tctx_get(ptr);
prof_thr_cnt_t *told_cnt;
cassert(config_prof);
assert(usize == isalloc(ptr, true));
assert(ptr != NULL || (uintptr_t)cnt <= (uintptr_t)1U);
if (unlikely((uintptr_t)tctx > (uintptr_t)1U))
prof_free_sampled_object(tsd, usize, tctx);
if (ptr != NULL) {
assert(usize == isalloc(ptr, true));
if (opt_lg_prof_sample != 0) {
if (prof_sample_accum_update(usize)) {
/*
* Don't sample. The usize passed to
* PROF_ALLOC_PREP() was larger than what
* actually got allocated, so a backtrace was
* captured for this allocation, even though
* its actual usize was insufficient to cross
* the sample threshold.
*/
cnt = (prof_thr_cnt_t *)(uintptr_t)1U;
}
}
}
if ((uintptr_t)old_ctx > (uintptr_t)1U) {
told_cnt = prof_lookup(old_ctx->bt);
if (told_cnt == NULL) {
/*
* It's too late to propagate OOM for this realloc(),
* so operate directly on old_cnt->ctx->cnt_merged.
*/
malloc_mutex_lock(old_ctx->lock);
old_ctx->cnt_merged.curobjs--;
old_ctx->cnt_merged.curbytes -= old_usize;
malloc_mutex_unlock(old_ctx->lock);
told_cnt = (prof_thr_cnt_t *)(uintptr_t)1U;
}
} else
told_cnt = (prof_thr_cnt_t *)(uintptr_t)1U;
if ((uintptr_t)told_cnt > (uintptr_t)1U)
told_cnt->epoch++;
if ((uintptr_t)cnt > (uintptr_t)1U) {
prof_ctx_set(ptr, usize, cnt->ctx);
cnt->epoch++;
} else if (ptr != NULL)
prof_ctx_set(ptr, usize, (prof_ctx_t *)(uintptr_t)1U);
/*********/
mb_write();
/*********/
if ((uintptr_t)told_cnt > (uintptr_t)1U) {
told_cnt->cnts.curobjs--;
told_cnt->cnts.curbytes -= old_usize;
}
if ((uintptr_t)cnt > (uintptr_t)1U) {
cnt->cnts.curobjs++;
cnt->cnts.curbytes += usize;
if (opt_prof_accum) {
cnt->cnts.accumobjs++;
cnt->cnts.accumbytes += usize;
}
}
/*********/
mb_write();
/*********/
if ((uintptr_t)told_cnt > (uintptr_t)1U)
told_cnt->epoch++;
if ((uintptr_t)cnt > (uintptr_t)1U)
cnt->epoch++;
/*********/
mb_write(); /* Not strictly necessary. */
}
JEMALLOC_INLINE void
prof_free(const void *ptr, size_t size)
{
prof_ctx_t *ctx = prof_ctx_get(ptr);
cassert(config_prof);
if ((uintptr_t)ctx > (uintptr_t)1) {
prof_thr_cnt_t *tcnt;
assert(size == isalloc(ptr, true));
tcnt = prof_lookup(ctx->bt);
if (tcnt != NULL) {
tcnt->epoch++;
/*********/
mb_write();
/*********/
tcnt->cnts.curobjs--;
tcnt->cnts.curbytes -= size;
/*********/
mb_write();
/*********/
tcnt->epoch++;
/*********/
mb_write();
/*********/
} else {
/*
* OOM during free() cannot be propagated, so operate
* directly on cnt->ctx->cnt_merged.
*/
malloc_mutex_lock(ctx->lock);
ctx->cnt_merged.curobjs--;
ctx->cnt_merged.curbytes -= size;
malloc_mutex_unlock(ctx->lock);
}
}
}
#endif

View File

@@ -1,4 +1,6 @@
/* List definitions. */
/*
* List definitions.
*/
#define ql_head(a_type) \
struct { \
a_type *qlh_first; \

View File

@@ -40,10 +40,8 @@ struct { \
(a_qr_b)->a_field.qre_prev = t; \
} while (0)
/*
* qr_meld() and qr_split() are functionally equivalent, so there's no need to
* have two copies of the code.
*/
/* qr_meld() and qr_split() are functionally equivalent, so there's no need to
* have two copies of the code. */
#define qr_split(a_qr_a, a_qr_b, a_field) \
qr_meld((a_qr_a), (a_qr_b), a_field)

View File

@@ -29,29 +29,36 @@ struct quarantine_s {
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void quarantine_alloc_hook_work(tsd_t *tsd);
void quarantine(tsd_t *tsd, void *ptr);
void quarantine_cleanup(tsd_t *tsd);
quarantine_t *quarantine_init(size_t lg_maxobjs);
void quarantine(void *ptr);
void quarantine_cleanup(void *arg);
bool quarantine_boot(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), quarantine, quarantine_t *)
void quarantine_alloc_hook(void);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_QUARANTINE_C_))
malloc_tsd_externs(quarantine, quarantine_t *)
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, quarantine, quarantine_t *, NULL,
quarantine_cleanup)
JEMALLOC_ALWAYS_INLINE void
quarantine_alloc_hook(void)
{
tsd_t *tsd;
quarantine_t *quarantine;
assert(config_fill && opt_quarantine);
tsd = tsd_fetch();
if (tsd_quarantine_get(tsd) == NULL)
quarantine_alloc_hook_work(tsd);
quarantine = *quarantine_tsd_get();
if (quarantine == NULL)
quarantine_init(LG_MAXOBJS_INIT);
}
#endif

View File

@@ -42,6 +42,7 @@ struct { \
#define rb_tree(a_type) \
struct { \
a_type *rbt_root; \
a_type rbt_nil; \
}
/* Left accessors. */
@@ -78,15 +79,6 @@ struct { \
(a_node)->a_field.rbn_right_red = (a_type *) (((intptr_t) \
(a_node)->a_field.rbn_right_red) & ((ssize_t)-2)); \
} while (0)
/* Node initializer. */
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
/* Bookkeeping bit cannot be used by node pointer. */ \
assert(((uintptr_t)(a_node) & 0x1) == 0); \
rbtn_left_set(a_type, a_field, (a_node), NULL); \
rbtn_right_set(a_type, a_field, (a_node), NULL); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#else
/* Right accessors. */
#define rbtn_right_get(a_type, a_field, a_node) \
@@ -107,26 +99,28 @@ struct { \
#define rbtn_black_set(a_type, a_field, a_node) do { \
(a_node)->a_field.rbn_red = false; \
} while (0)
#endif
/* Node initializer. */
#define rbt_node_new(a_type, a_field, a_rbt, a_node) do { \
rbtn_left_set(a_type, a_field, (a_node), NULL); \
rbtn_right_set(a_type, a_field, (a_node), NULL); \
rbtn_left_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \
rbtn_right_set(a_type, a_field, (a_node), &(a_rbt)->rbt_nil); \
rbtn_red_set(a_type, a_field, (a_node)); \
} while (0)
#endif
/* Tree initializer. */
#define rb_new(a_type, a_field, a_rbt) do { \
(a_rbt)->rbt_root = NULL; \
(a_rbt)->rbt_root = &(a_rbt)->rbt_nil; \
rbt_node_new(a_type, a_field, a_rbt, &(a_rbt)->rbt_nil); \
rbtn_black_set(a_type, a_field, &(a_rbt)->rbt_nil); \
} while (0)
/* Internal utility macros. */
#define rbtn_first(a_type, a_field, a_rbt, a_root, r_node) do { \
(r_node) = (a_root); \
if ((r_node) != NULL) { \
if ((r_node) != &(a_rbt)->rbt_nil) { \
for (; \
rbtn_left_get(a_type, a_field, (r_node)) != NULL; \
rbtn_left_get(a_type, a_field, (r_node)) != &(a_rbt)->rbt_nil;\
(r_node) = rbtn_left_get(a_type, a_field, (r_node))) { \
} \
} \
@@ -134,9 +128,10 @@ struct { \
#define rbtn_last(a_type, a_field, a_rbt, a_root, r_node) do { \
(r_node) = (a_root); \
if ((r_node) != NULL) { \
for (; rbtn_right_get(a_type, a_field, (r_node)) != NULL; \
(r_node) = rbtn_right_get(a_type, a_field, (r_node))) { \
if ((r_node) != &(a_rbt)->rbt_nil) { \
for (; rbtn_right_get(a_type, a_field, (r_node)) != \
&(a_rbt)->rbt_nil; (r_node) = rbtn_right_get(a_type, a_field, \
(r_node))) { \
} \
} \
} while (0)
@@ -163,8 +158,6 @@ struct { \
#define rb_proto(a_attr, a_prefix, a_rbt_type, a_type) \
a_attr void \
a_prefix##new(a_rbt_type *rbtree); \
a_attr bool \
a_prefix##empty(a_rbt_type *rbtree); \
a_attr a_type * \
a_prefix##first(a_rbt_type *rbtree); \
a_attr a_type * \
@@ -174,11 +167,11 @@ a_prefix##next(a_rbt_type *rbtree, a_type *node); \
a_attr a_type * \
a_prefix##prev(a_rbt_type *rbtree, a_type *node); \
a_attr a_type * \
a_prefix##search(a_rbt_type *rbtree, const a_type *key); \
a_prefix##search(a_rbt_type *rbtree, a_type *key); \
a_attr a_type * \
a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key); \
a_prefix##nsearch(a_rbt_type *rbtree, a_type *key); \
a_attr a_type * \
a_prefix##psearch(a_rbt_type *rbtree, const a_type *key); \
a_prefix##psearch(a_rbt_type *rbtree, a_type *key); \
a_attr void \
a_prefix##insert(a_rbt_type *rbtree, a_type *node); \
a_attr void \
@@ -188,10 +181,7 @@ a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \
a_rbt_type *, a_type *, void *), void *arg); \
a_attr a_type * \
a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg); \
a_attr void \
a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
void *arg);
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg);
/*
* The rb_gen() macro generates a type-specific red-black tree implementation,
@@ -208,7 +198,7 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
* int (a_cmp *)(a_type *a_node, a_type *a_other);
* ^^^^^^
* or a_key
* Interpretation of comparison function return values:
* Interpretation of comparision function return values:
* -1 : a_node < a_other
* 0 : a_node == a_other
* 1 : a_node > a_other
@@ -234,13 +224,6 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
* Args:
* tree: Pointer to an uninitialized red-black tree object.
*
* static bool
* ex_empty(ex_t *tree);
* Description: Determine whether tree is empty.
* Args:
* tree: Pointer to an initialized red-black tree object.
* Ret: True if tree is empty, false otherwise.
*
* static ex_node_t *
* ex_first(ex_t *tree);
* static ex_node_t *
@@ -262,7 +245,7 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
* last/first.
*
* static ex_node_t *
* ex_search(ex_t *tree, const ex_node_t *key);
* ex_search(ex_t *tree, ex_node_t *key);
* Description: Search for node that matches key.
* Args:
* tree: Pointer to an initialized red-black tree object.
@@ -270,9 +253,9 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
* Ret: Node in tree that matches key, or NULL if no match.
*
* static ex_node_t *
* ex_nsearch(ex_t *tree, const ex_node_t *key);
* ex_nsearch(ex_t *tree, ex_node_t *key);
* static ex_node_t *
* ex_psearch(ex_t *tree, const ex_node_t *key);
* ex_psearch(ex_t *tree, ex_node_t *key);
* Description: Search for node that matches key. If no match is found,
* return what would be key's successor/predecessor, were
* key in tree.
@@ -320,52 +303,40 @@ a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
* arg : Opaque pointer passed to cb().
* Ret: NULL if iteration completed, or the non-NULL callback return value
* that caused termination of the iteration.
*
* static void
* ex_destroy(ex_t *tree, void (*cb)(ex_node_t *, void *), void *arg);
* Description: Iterate over the tree with post-order traversal, remove
* each node, and run the callback if non-null. This is
* used for destroying a tree without paying the cost to
* rebalance it. The tree must not be otherwise altered
* during traversal.
* Args:
* tree: Pointer to an initialized red-black tree object.
* cb : Callback function, which, if non-null, is called for each node
* during iteration. There is no way to stop iteration once it
* has begun.
* arg : Opaque pointer passed to cb().
*/
#define rb_gen(a_attr, a_prefix, a_rbt_type, a_type, a_field, a_cmp) \
a_attr void \
a_prefix##new(a_rbt_type *rbtree) { \
rb_new(a_type, a_field, rbtree); \
} \
a_attr bool \
a_prefix##empty(a_rbt_type *rbtree) { \
return (rbtree->rbt_root == NULL); \
} \
a_attr a_type * \
a_prefix##first(a_rbt_type *rbtree) { \
a_type *ret; \
rbtn_first(a_type, a_field, rbtree, rbtree->rbt_root, ret); \
if (ret == &rbtree->rbt_nil) { \
ret = NULL; \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##last(a_rbt_type *rbtree) { \
a_type *ret; \
rbtn_last(a_type, a_field, rbtree, rbtree->rbt_root, ret); \
if (ret == &rbtree->rbt_nil) { \
ret = NULL; \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##next(a_rbt_type *rbtree, a_type *node) { \
a_type *ret; \
if (rbtn_right_get(a_type, a_field, node) != NULL) { \
if (rbtn_right_get(a_type, a_field, node) != &rbtree->rbt_nil) { \
rbtn_first(a_type, a_field, rbtree, rbtn_right_get(a_type, \
a_field, node), ret); \
} else { \
a_type *tnode = rbtree->rbt_root; \
assert(tnode != NULL); \
ret = NULL; \
assert(tnode != &rbtree->rbt_nil); \
ret = &rbtree->rbt_nil; \
while (true) { \
int cmp = (a_cmp)(node, tnode); \
if (cmp < 0) { \
@@ -376,21 +347,24 @@ a_prefix##next(a_rbt_type *rbtree, a_type *node) { \
} else { \
break; \
} \
assert(tnode != NULL); \
assert(tnode != &rbtree->rbt_nil); \
} \
} \
if (ret == &rbtree->rbt_nil) { \
ret = (NULL); \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##prev(a_rbt_type *rbtree, a_type *node) { \
a_type *ret; \
if (rbtn_left_get(a_type, a_field, node) != NULL) { \
if (rbtn_left_get(a_type, a_field, node) != &rbtree->rbt_nil) { \
rbtn_last(a_type, a_field, rbtree, rbtn_left_get(a_type, \
a_field, node), ret); \
} else { \
a_type *tnode = rbtree->rbt_root; \
assert(tnode != NULL); \
ret = NULL; \
assert(tnode != &rbtree->rbt_nil); \
ret = &rbtree->rbt_nil; \
while (true) { \
int cmp = (a_cmp)(node, tnode); \
if (cmp < 0) { \
@@ -401,17 +375,20 @@ a_prefix##prev(a_rbt_type *rbtree, a_type *node) { \
} else { \
break; \
} \
assert(tnode != NULL); \
assert(tnode != &rbtree->rbt_nil); \
} \
} \
if (ret == &rbtree->rbt_nil) { \
ret = (NULL); \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##search(a_rbt_type *rbtree, const a_type *key) { \
a_prefix##search(a_rbt_type *rbtree, a_type *key) { \
a_type *ret; \
int cmp; \
ret = rbtree->rbt_root; \
while (ret != NULL \
while (ret != &rbtree->rbt_nil \
&& (cmp = (a_cmp)(key, ret)) != 0) { \
if (cmp < 0) { \
ret = rbtn_left_get(a_type, a_field, ret); \
@@ -419,14 +396,17 @@ a_prefix##search(a_rbt_type *rbtree, const a_type *key) { \
ret = rbtn_right_get(a_type, a_field, ret); \
} \
} \
if (ret == &rbtree->rbt_nil) { \
ret = (NULL); \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key) { \
a_prefix##nsearch(a_rbt_type *rbtree, a_type *key) { \
a_type *ret; \
a_type *tnode = rbtree->rbt_root; \
ret = NULL; \
while (tnode != NULL) { \
ret = &rbtree->rbt_nil; \
while (tnode != &rbtree->rbt_nil) { \
int cmp = (a_cmp)(key, tnode); \
if (cmp < 0) { \
ret = tnode; \
@@ -438,14 +418,17 @@ a_prefix##nsearch(a_rbt_type *rbtree, const a_type *key) { \
break; \
} \
} \
if (ret == &rbtree->rbt_nil) { \
ret = (NULL); \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##psearch(a_rbt_type *rbtree, const a_type *key) { \
a_prefix##psearch(a_rbt_type *rbtree, a_type *key) { \
a_type *ret; \
a_type *tnode = rbtree->rbt_root; \
ret = NULL; \
while (tnode != NULL) { \
ret = &rbtree->rbt_nil; \
while (tnode != &rbtree->rbt_nil) { \
int cmp = (a_cmp)(key, tnode); \
if (cmp < 0) { \
tnode = rbtn_left_get(a_type, a_field, tnode); \
@@ -457,6 +440,9 @@ a_prefix##psearch(a_rbt_type *rbtree, const a_type *key) { \
break; \
} \
} \
if (ret == &rbtree->rbt_nil) { \
ret = (NULL); \
} \
return (ret); \
} \
a_attr void \
@@ -468,7 +454,7 @@ a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \
rbt_node_new(a_type, a_field, rbtree, node); \
/* Wind. */ \
path->node = rbtree->rbt_root; \
for (pathp = path; pathp->node != NULL; pathp++) { \
for (pathp = path; pathp->node != &rbtree->rbt_nil; pathp++) { \
int cmp = pathp->cmp = a_cmp(node, pathp->node); \
assert(cmp != 0); \
if (cmp < 0) { \
@@ -488,8 +474,7 @@ a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \
rbtn_left_set(a_type, a_field, cnode, left); \
if (rbtn_red_get(a_type, a_field, left)) { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
if (rbtn_red_get(a_type, a_field, leftleft)) { \
/* Fix up 4-node. */ \
a_type *tnode; \
rbtn_black_set(a_type, a_field, leftleft); \
@@ -504,8 +489,7 @@ a_prefix##insert(a_rbt_type *rbtree, a_type *node) { \
rbtn_right_set(a_type, a_field, cnode, right); \
if (rbtn_red_get(a_type, a_field, right)) { \
a_type *left = rbtn_left_get(a_type, a_field, cnode); \
if (left != NULL && rbtn_red_get(a_type, a_field, \
left)) { \
if (rbtn_red_get(a_type, a_field, left)) { \
/* Split 4-node. */ \
rbtn_black_set(a_type, a_field, left); \
rbtn_black_set(a_type, a_field, right); \
@@ -538,7 +522,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
/* Wind. */ \
nodep = NULL; /* Silence compiler warning. */ \
path->node = rbtree->rbt_root; \
for (pathp = path; pathp->node != NULL; pathp++) { \
for (pathp = path; pathp->node != &rbtree->rbt_nil; pathp++) { \
int cmp = pathp->cmp = a_cmp(node, pathp->node); \
if (cmp < 0) { \
pathp[1].node = rbtn_left_get(a_type, a_field, \
@@ -550,7 +534,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
/* Find node's successor, in preparation for swap. */ \
pathp->cmp = 1; \
nodep = pathp; \
for (pathp++; pathp->node != NULL; \
for (pathp++; pathp->node != &rbtree->rbt_nil; \
pathp++) { \
pathp->cmp = -1; \
pathp[1].node = rbtn_left_get(a_type, a_field, \
@@ -593,10 +577,10 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
} \
} else { \
a_type *left = rbtn_left_get(a_type, a_field, node); \
if (left != NULL) { \
if (left != &rbtree->rbt_nil) { \
/* node has no successor, but it has a left child. */\
/* Splice node out, without losing the left child. */\
assert(!rbtn_red_get(a_type, a_field, node)); \
assert(rbtn_red_get(a_type, a_field, node) == false); \
assert(rbtn_red_get(a_type, a_field, left)); \
rbtn_black_set(a_type, a_field, left); \
if (pathp == path) { \
@@ -613,32 +597,34 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
return; \
} else if (pathp == path) { \
/* The tree only contained one node. */ \
rbtree->rbt_root = NULL; \
rbtree->rbt_root = &rbtree->rbt_nil; \
return; \
} \
} \
if (rbtn_red_get(a_type, a_field, pathp->node)) { \
/* Prune red node, which requires no fixup. */ \
assert(pathp[-1].cmp < 0); \
rbtn_left_set(a_type, a_field, pathp[-1].node, NULL); \
rbtn_left_set(a_type, a_field, pathp[-1].node, \
&rbtree->rbt_nil); \
return; \
} \
/* The node to be pruned is black, so unwind until balance is */\
/* restored. */\
pathp->node = NULL; \
pathp->node = &rbtree->rbt_nil; \
for (pathp--; (uintptr_t)pathp >= (uintptr_t)path; pathp--) { \
assert(pathp->cmp != 0); \
if (pathp->cmp < 0) { \
rbtn_left_set(a_type, a_field, pathp->node, \
pathp[1].node); \
assert(rbtn_red_get(a_type, a_field, pathp[1].node) \
== false); \
if (rbtn_red_get(a_type, a_field, pathp->node)) { \
a_type *right = rbtn_right_get(a_type, a_field, \
pathp->node); \
a_type *rightleft = rbtn_left_get(a_type, a_field, \
right); \
a_type *tnode; \
if (rightleft != NULL && rbtn_red_get(a_type, a_field, \
rightleft)) { \
if (rbtn_red_get(a_type, a_field, rightleft)) { \
/* In the following diagrams, ||, //, and \\ */\
/* indicate the path to the removed node. */\
/* */\
@@ -681,8 +667,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
pathp->node); \
a_type *rightleft = rbtn_left_get(a_type, a_field, \
right); \
if (rightleft != NULL && rbtn_red_get(a_type, a_field, \
rightleft)) { \
if (rbtn_red_get(a_type, a_field, rightleft)) { \
/* || */\
/* pathp(b) */\
/* // \ */\
@@ -696,7 +681,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
rbtn_rotate_left(a_type, a_field, pathp->node, \
tnode); \
/* Balance restored, but rotation modified */\
/* subtree root, which may actually be the tree */\
/* subree root, which may actually be the tree */\
/* root. */\
if (pathp == path) { \
/* Set root. */ \
@@ -736,8 +721,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
left); \
a_type *leftrightleft = rbtn_left_get(a_type, a_field, \
leftright); \
if (leftrightleft != NULL && rbtn_red_get(a_type, \
a_field, leftrightleft)) { \
if (rbtn_red_get(a_type, a_field, leftrightleft)) { \
/* || */\
/* pathp(b) */\
/* / \\ */\
@@ -763,7 +747,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
/* (b) */\
/* / */\
/* (b) */\
assert(leftright != NULL); \
assert(leftright != &rbtree->rbt_nil); \
rbtn_red_set(a_type, a_field, leftright); \
rbtn_rotate_right(a_type, a_field, pathp->node, \
tnode); \
@@ -786,8 +770,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
return; \
} else if (rbtn_red_get(a_type, a_field, pathp->node)) { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
if (rbtn_red_get(a_type, a_field, leftleft)) { \
/* || */\
/* pathp(r) */\
/* / \\ */\
@@ -825,8 +808,7 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
} \
} else { \
a_type *leftleft = rbtn_left_get(a_type, a_field, left);\
if (leftleft != NULL && rbtn_red_get(a_type, a_field, \
leftleft)) { \
if (rbtn_red_get(a_type, a_field, leftleft)) { \
/* || */\
/* pathp(b) */\
/* / \\ */\
@@ -867,18 +849,18 @@ a_prefix##remove(a_rbt_type *rbtree, a_type *node) { \
} \
/* Set root. */ \
rbtree->rbt_root = path->node; \
assert(!rbtn_red_get(a_type, a_field, rbtree->rbt_root)); \
assert(rbtn_red_get(a_type, a_field, rbtree->rbt_root) == false); \
} \
a_attr a_type * \
a_prefix##iter_recurse(a_rbt_type *rbtree, a_type *node, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
if (node == NULL) { \
return (NULL); \
if (node == &rbtree->rbt_nil) { \
return (&rbtree->rbt_nil); \
} else { \
a_type *ret; \
if ((ret = a_prefix##iter_recurse(rbtree, rbtn_left_get(a_type, \
a_field, node), cb, arg)) != NULL || (ret = cb(rbtree, node, \
arg)) != NULL) { \
a_field, node), cb, arg)) != &rbtree->rbt_nil \
|| (ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \
@@ -892,8 +874,8 @@ a_prefix##iter_start(a_rbt_type *rbtree, a_type *start, a_type *node, \
if (cmp < 0) { \
a_type *ret; \
if ((ret = a_prefix##iter_start(rbtree, start, \
rbtn_left_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
rbtn_left_get(a_type, a_field, node), cb, arg)) != \
&rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##iter_recurse(rbtree, rbtn_right_get(a_type, \
@@ -920,18 +902,21 @@ a_prefix##iter(a_rbt_type *rbtree, a_type *start, a_type *(*cb)( \
} else { \
ret = a_prefix##iter_recurse(rbtree, rbtree->rbt_root, cb, arg);\
} \
if (ret == &rbtree->rbt_nil) { \
ret = NULL; \
} \
return (ret); \
} \
a_attr a_type * \
a_prefix##reverse_iter_recurse(a_rbt_type *rbtree, a_type *node, \
a_type *(*cb)(a_rbt_type *, a_type *, void *), void *arg) { \
if (node == NULL) { \
return (NULL); \
if (node == &rbtree->rbt_nil) { \
return (&rbtree->rbt_nil); \
} else { \
a_type *ret; \
if ((ret = a_prefix##reverse_iter_recurse(rbtree, \
rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
rbtn_right_get(a_type, a_field, node), cb, arg)) != \
&rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##reverse_iter_recurse(rbtree, \
@@ -946,8 +931,8 @@ a_prefix##reverse_iter_start(a_rbt_type *rbtree, a_type *start, \
if (cmp > 0) { \
a_type *ret; \
if ((ret = a_prefix##reverse_iter_start(rbtree, start, \
rbtn_right_get(a_type, a_field, node), cb, arg)) != NULL || \
(ret = cb(rbtree, node, arg)) != NULL) { \
rbtn_right_get(a_type, a_field, node), cb, arg)) != \
&rbtree->rbt_nil || (ret = cb(rbtree, node, arg)) != NULL) { \
return (ret); \
} \
return (a_prefix##reverse_iter_recurse(rbtree, \
@@ -975,29 +960,10 @@ a_prefix##reverse_iter(a_rbt_type *rbtree, a_type *start, \
ret = a_prefix##reverse_iter_recurse(rbtree, rbtree->rbt_root, \
cb, arg); \
} \
if (ret == &rbtree->rbt_nil) { \
ret = NULL; \
} \
return (ret); \
} \
a_attr void \
a_prefix##destroy_recurse(a_rbt_type *rbtree, a_type *node, void (*cb)( \
a_type *, void *), void *arg) { \
if (node == NULL) { \
return; \
} \
a_prefix##destroy_recurse(rbtree, rbtn_left_get(a_type, a_field, \
node), cb, arg); \
rbtn_left_set(a_type, a_field, (node), NULL); \
a_prefix##destroy_recurse(rbtree, rbtn_right_get(a_type, a_field, \
node), cb, arg); \
rbtn_right_set(a_type, a_field, (node), NULL); \
if (cb) { \
cb(node, arg); \
} \
} \
a_attr void \
a_prefix##destroy(a_rbt_type *rbtree, void (*cb)(a_type *, void *), \
void *arg) { \
a_prefix##destroy_recurse(rbtree, rbtree->rbt_root, cb, arg); \
rbtree->rbt_root = NULL; \
}
#endif /* RB_H_ */

View File

@@ -1,292 +1,170 @@
/*
* This radix tree implementation is tailored to the singular purpose of
* associating metadata with chunks that are currently owned by jemalloc.
* tracking which chunks are currently owned by jemalloc. This functionality
* is mandatory for OS X, where jemalloc must be able to respond to object
* ownership queries.
*
*******************************************************************************
*/
#ifdef JEMALLOC_H_TYPES
typedef struct rtree_node_elm_s rtree_node_elm_t;
typedef struct rtree_level_s rtree_level_t;
typedef struct rtree_s rtree_t;
/*
* RTREE_BITS_PER_LEVEL must be a power of two that is no larger than the
* machine address width.
* Size of each radix tree node (must be a power of 2). This impacts tree
* depth.
*/
#define LG_RTREE_BITS_PER_LEVEL 4
#define RTREE_BITS_PER_LEVEL (ZU(1) << LG_RTREE_BITS_PER_LEVEL)
#define RTREE_HEIGHT_MAX \
((ZU(1) << (LG_SIZEOF_PTR+3)) / RTREE_BITS_PER_LEVEL)
#define RTREE_NODESIZE (1U << 16)
/* Used for two-stage lock-free node initialization. */
#define RTREE_NODE_INITIALIZING ((rtree_node_elm_t *)0x1)
/*
* The node allocation callback function's argument is the number of contiguous
* rtree_node_elm_t structures to allocate, and the resulting memory must be
* zeroed.
*/
typedef rtree_node_elm_t *(rtree_node_alloc_t)(size_t);
typedef void (rtree_node_dalloc_t)(rtree_node_elm_t *);
typedef void *(rtree_alloc_t)(size_t);
typedef void (rtree_dalloc_t)(void *);
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct rtree_node_elm_s {
union {
void *pun;
rtree_node_elm_t *child;
extent_node_t *val;
};
};
struct rtree_level_s {
/*
* A non-NULL subtree points to a subtree rooted along the hypothetical
* path to the leaf node corresponding to key 0. Depending on what keys
* have been used to store to the tree, an arbitrary combination of
* subtree pointers may remain NULL.
*
* Suppose keys comprise 48 bits, and LG_RTREE_BITS_PER_LEVEL is 4.
* This results in a 3-level tree, and the leftmost leaf can be directly
* accessed via subtrees[2], the subtree prefixed by 0x0000 (excluding
* 0x00000000) can be accessed via subtrees[1], and the remainder of the
* tree can be accessed via subtrees[0].
*
* levels[0] : [<unused> | 0x0001******** | 0x0002******** | ...]
*
* levels[1] : [<unused> | 0x00000001**** | 0x00000002**** | ... ]
*
* levels[2] : [val(0x000000000000) | val(0x000000000001) | ...]
*
* This has practical implications on x64, which currently uses only the
* lower 47 bits of virtual address space in userland, thus leaving
* subtrees[0] unused and avoiding a level of tree traversal.
*/
union {
void *subtree_pun;
rtree_node_elm_t *subtree;
};
/* Number of key bits distinguished by this level. */
unsigned bits;
/*
* Cumulative number of key bits distinguished by traversing to
* corresponding tree level.
*/
unsigned cumbits;
};
struct rtree_s {
rtree_node_alloc_t *alloc;
rtree_node_dalloc_t *dalloc;
unsigned height;
/*
* Precomputed table used to convert from the number of leading 0 key
* bits to which subtree level to start at.
*/
unsigned start_level[RTREE_HEIGHT_MAX];
rtree_level_t levels[RTREE_HEIGHT_MAX];
rtree_alloc_t *alloc;
rtree_dalloc_t *dalloc;
malloc_mutex_t mutex;
void **root;
unsigned height;
unsigned level2bits[1]; /* Dynamically sized. */
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
bool rtree_new(rtree_t *rtree, unsigned bits, rtree_node_alloc_t *alloc,
rtree_node_dalloc_t *dalloc);
rtree_t *rtree_new(unsigned bits, rtree_alloc_t *alloc, rtree_dalloc_t *dalloc);
void rtree_delete(rtree_t *rtree);
rtree_node_elm_t *rtree_subtree_read_hard(rtree_t *rtree,
unsigned level);
rtree_node_elm_t *rtree_child_read_hard(rtree_t *rtree,
rtree_node_elm_t *elm, unsigned level);
void rtree_prefork(rtree_t *rtree);
void rtree_postfork_parent(rtree_t *rtree);
void rtree_postfork_child(rtree_t *rtree);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
unsigned rtree_start_level(rtree_t *rtree, uintptr_t key);
uintptr_t rtree_subkey(rtree_t *rtree, uintptr_t key, unsigned level);
bool rtree_node_valid(rtree_node_elm_t *node);
rtree_node_elm_t *rtree_child_tryread(rtree_node_elm_t *elm);
rtree_node_elm_t *rtree_child_read(rtree_t *rtree, rtree_node_elm_t *elm,
unsigned level);
extent_node_t *rtree_val_read(rtree_t *rtree, rtree_node_elm_t *elm,
bool dependent);
void rtree_val_write(rtree_t *rtree, rtree_node_elm_t *elm,
const extent_node_t *val);
rtree_node_elm_t *rtree_subtree_tryread(rtree_t *rtree, unsigned level);
rtree_node_elm_t *rtree_subtree_read(rtree_t *rtree, unsigned level);
extent_node_t *rtree_get(rtree_t *rtree, uintptr_t key, bool dependent);
bool rtree_set(rtree_t *rtree, uintptr_t key, const extent_node_t *val);
#ifdef JEMALLOC_DEBUG
uint8_t rtree_get_locked(rtree_t *rtree, uintptr_t key);
#endif
uint8_t rtree_get(rtree_t *rtree, uintptr_t key);
bool rtree_set(rtree_t *rtree, uintptr_t key, uint8_t val);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_RTREE_C_))
JEMALLOC_INLINE unsigned
rtree_start_level(rtree_t *rtree, uintptr_t key)
{
unsigned start_level;
if (unlikely(key == 0))
return (rtree->height - 1);
start_level = rtree->start_level[lg_floor(key) >>
LG_RTREE_BITS_PER_LEVEL];
assert(start_level < rtree->height);
return (start_level);
#define RTREE_GET_GENERATE(f) \
/* The least significant bits of the key are ignored. */ \
JEMALLOC_INLINE uint8_t \
f(rtree_t *rtree, uintptr_t key) \
{ \
uint8_t ret; \
uintptr_t subkey; \
unsigned i, lshift, height, bits; \
void **node, **child; \
\
RTREE_LOCK(&rtree->mutex); \
for (i = lshift = 0, height = rtree->height, node = rtree->root;\
i < height - 1; \
i++, lshift += bits, node = child) { \
bits = rtree->level2bits[i]; \
subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR + \
3)) - bits); \
child = (void**)node[subkey]; \
if (child == NULL) { \
RTREE_UNLOCK(&rtree->mutex); \
return (0); \
} \
} \
\
/* \
* node is a leaf, so it contains values rather than node \
* pointers. \
*/ \
bits = rtree->level2bits[i]; \
subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) - \
bits); \
{ \
uint8_t *leaf = (uint8_t *)node; \
ret = leaf[subkey]; \
} \
RTREE_UNLOCK(&rtree->mutex); \
\
RTREE_GET_VALIDATE \
return (ret); \
}
JEMALLOC_INLINE uintptr_t
rtree_subkey(rtree_t *rtree, uintptr_t key, unsigned level)
{
#ifdef JEMALLOC_DEBUG
# define RTREE_LOCK(l) malloc_mutex_lock(l)
# define RTREE_UNLOCK(l) malloc_mutex_unlock(l)
# define RTREE_GET_VALIDATE
RTREE_GET_GENERATE(rtree_get_locked)
# undef RTREE_LOCK
# undef RTREE_UNLOCK
# undef RTREE_GET_VALIDATE
#endif
return ((key >> ((ZU(1) << (LG_SIZEOF_PTR+3)) -
rtree->levels[level].cumbits)) & ((ZU(1) <<
rtree->levels[level].bits) - 1));
}
#define RTREE_LOCK(l)
#define RTREE_UNLOCK(l)
#ifdef JEMALLOC_DEBUG
/*
* Suppose that it were possible for a jemalloc-allocated chunk to be
* munmap()ped, followed by a different allocator in another thread re-using
* overlapping virtual memory, all without invalidating the cached rtree
* value. The result would be a false positive (the rtree would claim that
* jemalloc owns memory that it had actually discarded). This scenario
* seems impossible, but the following assertion is a prudent sanity check.
*/
# define RTREE_GET_VALIDATE \
assert(rtree_get_locked(rtree, key) == ret);
#else
# define RTREE_GET_VALIDATE
#endif
RTREE_GET_GENERATE(rtree_get)
#undef RTREE_LOCK
#undef RTREE_UNLOCK
#undef RTREE_GET_VALIDATE
JEMALLOC_INLINE bool
rtree_node_valid(rtree_node_elm_t *node)
{
return ((uintptr_t)node > (uintptr_t)RTREE_NODE_INITIALIZING);
}
JEMALLOC_INLINE rtree_node_elm_t *
rtree_child_tryread(rtree_node_elm_t *elm)
{
rtree_node_elm_t *child;
/* Double-checked read (first read may be stale. */
child = elm->child;
if (!rtree_node_valid(child))
child = atomic_read_p(&elm->pun);
return (child);
}
JEMALLOC_INLINE rtree_node_elm_t *
rtree_child_read(rtree_t *rtree, rtree_node_elm_t *elm, unsigned level)
{
rtree_node_elm_t *child;
child = rtree_child_tryread(elm);
if (unlikely(!rtree_node_valid(child)))
child = rtree_child_read_hard(rtree, elm, level);
return (child);
}
JEMALLOC_INLINE extent_node_t *
rtree_val_read(rtree_t *rtree, rtree_node_elm_t *elm, bool dependent)
{
if (dependent) {
/*
* Reading a val on behalf of a pointer to a valid allocation is
* guaranteed to be a clean read even without synchronization,
* because the rtree update became visible in memory before the
* pointer came into existence.
*/
return (elm->val);
} else {
/*
* An arbitrary read, e.g. on behalf of ivsalloc(), may not be
* dependent on a previous rtree write, which means a stale read
* could result if synchronization were omitted here.
*/
return (atomic_read_p(&elm->pun));
}
}
JEMALLOC_INLINE void
rtree_val_write(rtree_t *rtree, rtree_node_elm_t *elm, const extent_node_t *val)
{
atomic_write_p(&elm->pun, val);
}
JEMALLOC_INLINE rtree_node_elm_t *
rtree_subtree_tryread(rtree_t *rtree, unsigned level)
{
rtree_node_elm_t *subtree;
/* Double-checked read (first read may be stale. */
subtree = rtree->levels[level].subtree;
if (!rtree_node_valid(subtree))
subtree = atomic_read_p(&rtree->levels[level].subtree_pun);
return (subtree);
}
JEMALLOC_INLINE rtree_node_elm_t *
rtree_subtree_read(rtree_t *rtree, unsigned level)
{
rtree_node_elm_t *subtree;
subtree = rtree_subtree_tryread(rtree, level);
if (unlikely(!rtree_node_valid(subtree)))
subtree = rtree_subtree_read_hard(rtree, level);
return (subtree);
}
JEMALLOC_INLINE extent_node_t *
rtree_get(rtree_t *rtree, uintptr_t key, bool dependent)
rtree_set(rtree_t *rtree, uintptr_t key, uint8_t val)
{
uintptr_t subkey;
unsigned i, start_level;
rtree_node_elm_t *node, *child;
unsigned i, lshift, height, bits;
void **node, **child;
start_level = rtree_start_level(rtree, key);
for (i = start_level, node = rtree_subtree_tryread(rtree, start_level);
/**/; i++, node = child) {
if (!dependent && unlikely(!rtree_node_valid(node)))
return (NULL);
subkey = rtree_subkey(rtree, key, i);
if (i == rtree->height - 1) {
/*
* node is a leaf, so it contains values rather than
* child pointers.
*/
return (rtree_val_read(rtree, &node[subkey],
dependent));
malloc_mutex_lock(&rtree->mutex);
for (i = lshift = 0, height = rtree->height, node = rtree->root;
i < height - 1;
i++, lshift += bits, node = child) {
bits = rtree->level2bits[i];
subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) -
bits);
child = (void**)node[subkey];
if (child == NULL) {
size_t size = ((i + 1 < height - 1) ? sizeof(void *)
: (sizeof(uint8_t))) << rtree->level2bits[i+1];
child = (void**)rtree->alloc(size);
if (child == NULL) {
malloc_mutex_unlock(&rtree->mutex);
return (true);
}
memset(child, 0, size);
node[subkey] = child;
}
assert(i < rtree->height - 1);
child = rtree_child_tryread(&node[subkey]);
}
not_reached();
}
JEMALLOC_INLINE bool
rtree_set(rtree_t *rtree, uintptr_t key, const extent_node_t *val)
{
uintptr_t subkey;
unsigned i, start_level;
rtree_node_elm_t *node, *child;
start_level = rtree_start_level(rtree, key);
node = rtree_subtree_read(rtree, start_level);
if (node == NULL)
return (true);
for (i = start_level; /**/; i++, node = child) {
subkey = rtree_subkey(rtree, key, i);
if (i == rtree->height - 1) {
/*
* node is a leaf, so it contains values rather than
* child pointers.
*/
rtree_val_write(rtree, &node[subkey], val);
return (false);
}
assert(i + 1 < rtree->height);
child = rtree_child_read(rtree, &node[subkey], i);
if (child == NULL)
return (true);
/* node is a leaf, so it contains values rather than node pointers. */
bits = rtree->level2bits[i];
subkey = (key << lshift) >> ((ZU(1) << (LG_SIZEOF_PTR+3)) - bits);
{
uint8_t *leaf = (uint8_t *)node;
leaf[subkey] = val;
}
not_reached();
malloc_mutex_unlock(&rtree->mutex);
return (false);
}
#endif

View File

@@ -1,26 +1,17 @@
#!/bin/sh
#
# Usage: size_classes.sh <lg_qarr> <lg_tmin> <lg_parr> <lg_g>
# The following limits are chosen such that they cover all supported platforms.
# Pointer sizes.
lg_zarr="2 3"
# Quanta.
lg_qarr=$1
# Range of quanta.
lg_qmin=3
lg_qmax=4
# The range of tiny size classes is [2^lg_tmin..2^(lg_q-1)].
lg_tmin=$2
lg_tmin=3
# Maximum lookup size.
lg_kmax=12
# Page sizes.
lg_parr=`echo $3 | tr ',' ' '`
# Size class group size (number of size classes for each size doubling).
lg_g=$4
# Range of page sizes.
lg_pmin=12
lg_pmax=16
pow2() {
e=$1
@@ -31,224 +22,68 @@ pow2() {
done
}
lg() {
x=$1
lg_result=0
while [ ${x} -gt 1 ] ; do
lg_result=$((${lg_result} + 1))
x=$((${x} / 2))
done
}
size_class() {
index=$1
lg_grp=$2
lg_delta=$3
ndelta=$4
lg_p=$5
lg_kmax=$6
lg ${ndelta}; lg_ndelta=${lg_result}; pow2 ${lg_ndelta}
if [ ${pow2_result} -lt ${ndelta} ] ; then
rem="yes"
else
rem="no"
fi
lg_size=${lg_grp}
if [ $((${lg_delta} + ${lg_ndelta})) -eq ${lg_grp} ] ; then
lg_size=$((${lg_grp} + 1))
else
lg_size=${lg_grp}
rem="yes"
fi
if [ ${lg_size} -lt $((${lg_p} + ${lg_g})) ] ; then
bin="yes"
else
bin="no"
fi
if [ ${lg_size} -lt ${lg_kmax} \
-o ${lg_size} -eq ${lg_kmax} -a ${rem} = "no" ] ; then
lg_delta_lookup=${lg_delta}
else
lg_delta_lookup="no"
fi
printf ' SC(%3d, %6d, %8d, %6d, %3s, %2s) \\\n' ${index} ${lg_grp} ${lg_delta} ${ndelta} ${bin} ${lg_delta_lookup}
# Defined upon return:
# - lg_delta_lookup (${lg_delta} or "no")
# - bin ("yes" or "no")
}
sep_line() {
echo " \\"
}
size_classes() {
lg_z=$1
lg_q=$2
lg_t=$3
lg_p=$4
lg_g=$5
pow2 $((${lg_z} + 3)); ptr_bits=${pow2_result}
pow2 ${lg_g}; g=${pow2_result}
echo "#define SIZE_CLASSES \\"
echo " /* index, lg_grp, lg_delta, ndelta, bin, lg_delta_lookup */ \\"
ntbins=0
nlbins=0
lg_tiny_maxclass='"NA"'
nbins=0
# Tiny size classes.
ndelta=0
index=0
lg_grp=${lg_t}
lg_delta=${lg_grp}
while [ ${lg_grp} -lt ${lg_q} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
if [ ${lg_delta_lookup} != "no" ] ; then
nlbins=$((${index} + 1))
fi
if [ ${bin} != "no" ] ; then
nbins=$((${index} + 1))
fi
ntbins=$((${ntbins} + 1))
lg_tiny_maxclass=${lg_grp} # Final written value is correct.
index=$((${index} + 1))
lg_delta=${lg_grp}
lg_grp=$((${lg_grp} + 1))
done
# First non-tiny group.
if [ ${ntbins} -gt 0 ] ; then
sep_line
# The first size class has an unusual encoding, because the size has to be
# split between grp and delta*ndelta.
lg_grp=$((${lg_grp} - 1))
ndelta=1
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
index=$((${index} + 1))
lg_grp=$((${lg_grp} + 1))
lg_delta=$((${lg_delta} + 1))
fi
while [ ${ndelta} -lt ${g} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
index=$((${index} + 1))
ndelta=$((${ndelta} + 1))
done
# All remaining groups.
lg_grp=$((${lg_grp} + ${lg_g}))
while [ ${lg_grp} -lt $((${ptr_bits} - 1)) ] ; do
sep_line
ndelta=1
if [ ${lg_grp} -eq $((${ptr_bits} - 2)) ] ; then
ndelta_limit=$((${g} - 1))
else
ndelta_limit=${g}
fi
while [ ${ndelta} -le ${ndelta_limit} ] ; do
size_class ${index} ${lg_grp} ${lg_delta} ${ndelta} ${lg_p} ${lg_kmax}
if [ ${lg_delta_lookup} != "no" ] ; then
nlbins=$((${index} + 1))
# Final written value is correct:
lookup_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
fi
if [ ${bin} != "no" ] ; then
nbins=$((${index} + 1))
# Final written value is correct:
small_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
if [ ${lg_g} -gt 0 ] ; then
lg_large_minclass=$((${lg_grp} + 1))
else
lg_large_minclass=$((${lg_grp} + 2))
fi
fi
# Final written value is correct:
huge_maxclass="((((size_t)1) << ${lg_grp}) + (((size_t)${ndelta}) << ${lg_delta}))"
index=$((${index} + 1))
ndelta=$((${ndelta} + 1))
done
lg_grp=$((${lg_grp} + 1))
lg_delta=$((${lg_delta} + 1))
done
echo
nsizes=${index}
# Defined upon completion:
# - ntbins
# - nlbins
# - nbins
# - nsizes
# - lg_tiny_maxclass
# - lookup_maxclass
# - small_maxclass
# - lg_large_minclass
# - huge_maxclass
}
cat <<EOF
/* This file was automatically generated by size_classes.sh. */
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header requires LG_SIZEOF_PTR, LG_TINY_MIN, LG_QUANTUM, and LG_PAGE to
* be defined prior to inclusion, and it in turn defines:
*
* LG_SIZE_CLASS_GROUP: Lg of size class count for each size doubling.
* SIZE_CLASSES: Complete table of
* SC(index, lg_grp, lg_delta, ndelta, bin, lg_delta_lookup)
* tuples.
* index: Size class index.
* lg_grp: Lg group base size (no deltas added).
* lg_delta: Lg delta to previous size class.
* ndelta: Delta multiplier. size == 1<<lg_grp + ndelta<<lg_delta
* bin: 'yes' if a small bin size class, 'no' otherwise.
* lg_delta_lookup: Same as lg_delta if a lookup table size class, 'no'
* otherwise.
* NTBINS: Number of tiny bins.
* NLBINS: Number of bins supported by the lookup table.
* NBINS: Number of small size class bins.
* NSIZES: Number of size classes.
* LG_TINY_MAXCLASS: Lg of maximum tiny size class.
* LOOKUP_MAXCLASS: Maximum size class included in lookup table.
* SMALL_MAXCLASS: Maximum small size class.
* LG_LARGE_MINCLASS: Lg of minimum large size class.
* HUGE_MAXCLASS: Maximum (huge) size class.
*/
#define LG_SIZE_CLASS_GROUP ${lg_g}
EOF
for lg_z in ${lg_zarr} ; do
for lg_q in ${lg_qarr} ; do
lg_t=${lg_tmin}
while [ ${lg_t} -le ${lg_q} ] ; do
# Iterate through page sizes and compute how many bins there are.
for lg_p in ${lg_parr} ; do
echo "#if (LG_SIZEOF_PTR == ${lg_z} && LG_TINY_MIN == ${lg_t} && LG_QUANTUM == ${lg_q} && LG_PAGE == ${lg_p})"
size_classes ${lg_z} ${lg_q} ${lg_t} ${lg_p} ${lg_g}
echo "#define SIZE_CLASSES_DEFINED"
echo "#define NTBINS ${ntbins}"
echo "#define NLBINS ${nlbins}"
echo "#define NBINS ${nbins}"
echo "#define NSIZES ${nsizes}"
echo "#define LG_TINY_MAXCLASS ${lg_tiny_maxclass}"
echo "#define LOOKUP_MAXCLASS ${lookup_maxclass}"
echo "#define SMALL_MAXCLASS ${small_maxclass}"
echo "#define LG_LARGE_MINCLASS ${lg_large_minclass}"
echo "#define HUGE_MAXCLASS ${huge_maxclass}"
echo "#endif"
echo
lg_q=${lg_qmin}
while [ ${lg_q} -le ${lg_qmax} ] ; do
lg_t=${lg_tmin}
while [ ${lg_t} -le ${lg_q} ] ; do
lg_p=${lg_pmin}
while [ ${lg_p} -le ${lg_pmax} ] ; do
echo "#if (LG_TINY_MIN == ${lg_t} && LG_QUANTUM == ${lg_q} && LG_PAGE == ${lg_p})"
echo "#define SIZE_CLASSES_DEFINED"
pow2 ${lg_q}; q=${pow2_result}
pow2 ${lg_t}; t=${pow2_result}
pow2 ${lg_p}; p=${pow2_result}
bin=0
psz=0
sz=${t}
delta=$((${sz} - ${psz}))
echo "/* SIZE_CLASS(bin, delta, sz) */"
echo "#define SIZE_CLASSES \\"
# Tiny size classes.
while [ ${sz} -lt ${q} ] ; do
echo " SIZE_CLASS(${bin}, ${delta}, ${sz}) \\"
bin=$((${bin} + 1))
psz=${sz}
sz=$((${sz} + ${sz}))
delta=$((${sz} - ${psz}))
done
lg_t=$((${lg_t} + 1))
# Quantum-multiple size classes. For each doubling of sz, as many as 4
# size classes exist. Their spacing is the greater of:
# - q
# - sz/4, where sz is a power of 2
while [ ${sz} -lt ${p} ] ; do
if [ ${sz} -ge $((${q} * 4)) ] ; then
i=$((${sz} / 4))
else
i=${q}
fi
next_2pow=$((${sz} * 2))
while [ ${sz} -lt $next_2pow ] ; do
echo " SIZE_CLASS(${bin}, ${delta}, ${sz}) \\"
bin=$((${bin} + 1))
psz=${sz}
sz=$((${sz} + ${i}))
delta=$((${sz} - ${psz}))
done
done
echo
echo "#define NBINS ${bin}"
echo "#define SMALL_MAXCLASS ${psz}"
echo "#endif"
echo
lg_p=$((${lg_p} + 1))
done
lg_t=$((${lg_t} + 1))
done
lg_q=$((${lg_q} + 1))
done
cat <<EOF
@@ -257,10 +92,11 @@ cat <<EOF
#endif
#undef SIZE_CLASSES_DEFINED
/*
* The size2index_tab lookup table uses uint8_t to encode each bin index, so we
* The small_size2bin lookup table uses uint8_t to encode each bin index, so we
* cannot support more than 256 small size classes. Further constrain NBINS to
* 255 since all small size classes, plus a "not small" size class must be
* stored in 8 bits of arena_chunk_map_bits_t's bits field.
* 255 to support prof_promote, since all small size classes, plus a "not
* small" size class must be stored in 8 bits of arena_chunk_map_t's bits
* field.
*/
#if (NBINS > 255)
# error "Too many small size classes"

View File

@@ -1,246 +0,0 @@
/*
* This file was generated by the following command:
* sh smoothstep.sh smoother 200 24 3 15
*/
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header defines a precomputed table based on the smoothstep family of
* sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0
* to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so
* that floating point math can be avoided.
*
* 3 2
* smoothstep(x) = -2x + 3x
*
* 5 4 3
* smootherstep(x) = 6x - 15x + 10x
*
* 7 6 5 4
* smootheststep(x) = -20x + 70x - 84x + 35x
*/
#define SMOOTHSTEP_VARIANT "smoother"
#define SMOOTHSTEP_NSTEPS 200
#define SMOOTHSTEP_BFP 24
#define SMOOTHSTEP \
/* STEP(step, h, x, y) */ \
STEP( 1, UINT64_C(0x0000000000000014), 0.005, 0.000001240643750) \
STEP( 2, UINT64_C(0x00000000000000a5), 0.010, 0.000009850600000) \
STEP( 3, UINT64_C(0x0000000000000229), 0.015, 0.000032995181250) \
STEP( 4, UINT64_C(0x0000000000000516), 0.020, 0.000077619200000) \
STEP( 5, UINT64_C(0x00000000000009dc), 0.025, 0.000150449218750) \
STEP( 6, UINT64_C(0x00000000000010e8), 0.030, 0.000257995800000) \
STEP( 7, UINT64_C(0x0000000000001aa4), 0.035, 0.000406555756250) \
STEP( 8, UINT64_C(0x0000000000002777), 0.040, 0.000602214400000) \
STEP( 9, UINT64_C(0x00000000000037c2), 0.045, 0.000850847793750) \
STEP( 10, UINT64_C(0x0000000000004be6), 0.050, 0.001158125000000) \
STEP( 11, UINT64_C(0x000000000000643c), 0.055, 0.001529510331250) \
STEP( 12, UINT64_C(0x000000000000811f), 0.060, 0.001970265600000) \
STEP( 13, UINT64_C(0x000000000000a2e2), 0.065, 0.002485452368750) \
STEP( 14, UINT64_C(0x000000000000c9d8), 0.070, 0.003079934200000) \
STEP( 15, UINT64_C(0x000000000000f64f), 0.075, 0.003758378906250) \
STEP( 16, UINT64_C(0x0000000000012891), 0.080, 0.004525260800000) \
STEP( 17, UINT64_C(0x00000000000160e7), 0.085, 0.005384862943750) \
STEP( 18, UINT64_C(0x0000000000019f95), 0.090, 0.006341279400000) \
STEP( 19, UINT64_C(0x000000000001e4dc), 0.095, 0.007398417481250) \
STEP( 20, UINT64_C(0x00000000000230fc), 0.100, 0.008560000000000) \
STEP( 21, UINT64_C(0x0000000000028430), 0.105, 0.009829567518750) \
STEP( 22, UINT64_C(0x000000000002deb0), 0.110, 0.011210480600000) \
STEP( 23, UINT64_C(0x00000000000340b1), 0.115, 0.012705922056250) \
STEP( 24, UINT64_C(0x000000000003aa67), 0.120, 0.014318899200000) \
STEP( 25, UINT64_C(0x0000000000041c00), 0.125, 0.016052246093750) \
STEP( 26, UINT64_C(0x00000000000495a8), 0.130, 0.017908625800000) \
STEP( 27, UINT64_C(0x000000000005178b), 0.135, 0.019890532631250) \
STEP( 28, UINT64_C(0x000000000005a1cf), 0.140, 0.022000294400000) \
STEP( 29, UINT64_C(0x0000000000063498), 0.145, 0.024240074668750) \
STEP( 30, UINT64_C(0x000000000006d009), 0.150, 0.026611875000000) \
STEP( 31, UINT64_C(0x000000000007743f), 0.155, 0.029117537206250) \
STEP( 32, UINT64_C(0x0000000000082157), 0.160, 0.031758745600000) \
STEP( 33, UINT64_C(0x000000000008d76b), 0.165, 0.034537029243750) \
STEP( 34, UINT64_C(0x0000000000099691), 0.170, 0.037453764200000) \
STEP( 35, UINT64_C(0x00000000000a5edf), 0.175, 0.040510175781250) \
STEP( 36, UINT64_C(0x00000000000b3067), 0.180, 0.043707340800000) \
STEP( 37, UINT64_C(0x00000000000c0b38), 0.185, 0.047046189818750) \
STEP( 38, UINT64_C(0x00000000000cef5e), 0.190, 0.050527509400000) \
STEP( 39, UINT64_C(0x00000000000ddce6), 0.195, 0.054151944356250) \
STEP( 40, UINT64_C(0x00000000000ed3d8), 0.200, 0.057920000000000) \
STEP( 41, UINT64_C(0x00000000000fd439), 0.205, 0.061832044393750) \
STEP( 42, UINT64_C(0x000000000010de0e), 0.210, 0.065888310600000) \
STEP( 43, UINT64_C(0x000000000011f158), 0.215, 0.070088898931250) \
STEP( 44, UINT64_C(0x0000000000130e17), 0.220, 0.074433779200000) \
STEP( 45, UINT64_C(0x0000000000143448), 0.225, 0.078922792968750) \
STEP( 46, UINT64_C(0x00000000001563e7), 0.230, 0.083555655800000) \
STEP( 47, UINT64_C(0x0000000000169cec), 0.235, 0.088331959506250) \
STEP( 48, UINT64_C(0x000000000017df4f), 0.240, 0.093251174400000) \
STEP( 49, UINT64_C(0x0000000000192b04), 0.245, 0.098312651543750) \
STEP( 50, UINT64_C(0x00000000001a8000), 0.250, 0.103515625000000) \
STEP( 51, UINT64_C(0x00000000001bde32), 0.255, 0.108859214081250) \
STEP( 52, UINT64_C(0x00000000001d458b), 0.260, 0.114342425600000) \
STEP( 53, UINT64_C(0x00000000001eb5f8), 0.265, 0.119964156118750) \
STEP( 54, UINT64_C(0x0000000000202f65), 0.270, 0.125723194200000) \
STEP( 55, UINT64_C(0x000000000021b1bb), 0.275, 0.131618222656250) \
STEP( 56, UINT64_C(0x0000000000233ce3), 0.280, 0.137647820800000) \
STEP( 57, UINT64_C(0x000000000024d0c3), 0.285, 0.143810466693750) \
STEP( 58, UINT64_C(0x0000000000266d40), 0.290, 0.150104539400000) \
STEP( 59, UINT64_C(0x000000000028123d), 0.295, 0.156528321231250) \
STEP( 60, UINT64_C(0x000000000029bf9c), 0.300, 0.163080000000000) \
STEP( 61, UINT64_C(0x00000000002b753d), 0.305, 0.169757671268750) \
STEP( 62, UINT64_C(0x00000000002d32fe), 0.310, 0.176559340600000) \
STEP( 63, UINT64_C(0x00000000002ef8bc), 0.315, 0.183482925806250) \
STEP( 64, UINT64_C(0x000000000030c654), 0.320, 0.190526259200000) \
STEP( 65, UINT64_C(0x0000000000329b9f), 0.325, 0.197687089843750) \
STEP( 66, UINT64_C(0x0000000000347875), 0.330, 0.204963085800000) \
STEP( 67, UINT64_C(0x0000000000365cb0), 0.335, 0.212351836381250) \
STEP( 68, UINT64_C(0x0000000000384825), 0.340, 0.219850854400000) \
STEP( 69, UINT64_C(0x00000000003a3aa8), 0.345, 0.227457578418750) \
STEP( 70, UINT64_C(0x00000000003c340f), 0.350, 0.235169375000000) \
STEP( 71, UINT64_C(0x00000000003e342b), 0.355, 0.242983540956250) \
STEP( 72, UINT64_C(0x0000000000403ace), 0.360, 0.250897305600000) \
STEP( 73, UINT64_C(0x00000000004247c8), 0.365, 0.258907832993750) \
STEP( 74, UINT64_C(0x0000000000445ae9), 0.370, 0.267012224200000) \
STEP( 75, UINT64_C(0x0000000000467400), 0.375, 0.275207519531250) \
STEP( 76, UINT64_C(0x00000000004892d8), 0.380, 0.283490700800000) \
STEP( 77, UINT64_C(0x00000000004ab740), 0.385, 0.291858693568750) \
STEP( 78, UINT64_C(0x00000000004ce102), 0.390, 0.300308369400000) \
STEP( 79, UINT64_C(0x00000000004f0fe9), 0.395, 0.308836548106250) \
STEP( 80, UINT64_C(0x00000000005143bf), 0.400, 0.317440000000000) \
STEP( 81, UINT64_C(0x0000000000537c4d), 0.405, 0.326115448143750) \
STEP( 82, UINT64_C(0x000000000055b95b), 0.410, 0.334859570600000) \
STEP( 83, UINT64_C(0x000000000057fab1), 0.415, 0.343669002681250) \
STEP( 84, UINT64_C(0x00000000005a4015), 0.420, 0.352540339200000) \
STEP( 85, UINT64_C(0x00000000005c894e), 0.425, 0.361470136718750) \
STEP( 86, UINT64_C(0x00000000005ed622), 0.430, 0.370454915800000) \
STEP( 87, UINT64_C(0x0000000000612655), 0.435, 0.379491163256250) \
STEP( 88, UINT64_C(0x00000000006379ac), 0.440, 0.388575334400000) \
STEP( 89, UINT64_C(0x000000000065cfeb), 0.445, 0.397703855293750) \
STEP( 90, UINT64_C(0x00000000006828d6), 0.450, 0.406873125000000) \
STEP( 91, UINT64_C(0x00000000006a842f), 0.455, 0.416079517831250) \
STEP( 92, UINT64_C(0x00000000006ce1bb), 0.460, 0.425319385600000) \
STEP( 93, UINT64_C(0x00000000006f413a), 0.465, 0.434589059868750) \
STEP( 94, UINT64_C(0x000000000071a270), 0.470, 0.443884854200000) \
STEP( 95, UINT64_C(0x000000000074051d), 0.475, 0.453203066406250) \
STEP( 96, UINT64_C(0x0000000000766905), 0.480, 0.462539980800000) \
STEP( 97, UINT64_C(0x000000000078cde7), 0.485, 0.471891870443750) \
STEP( 98, UINT64_C(0x00000000007b3387), 0.490, 0.481254999400000) \
STEP( 99, UINT64_C(0x00000000007d99a4), 0.495, 0.490625624981250) \
STEP( 100, UINT64_C(0x0000000000800000), 0.500, 0.500000000000000) \
STEP( 101, UINT64_C(0x000000000082665b), 0.505, 0.509374375018750) \
STEP( 102, UINT64_C(0x000000000084cc78), 0.510, 0.518745000600000) \
STEP( 103, UINT64_C(0x0000000000873218), 0.515, 0.528108129556250) \
STEP( 104, UINT64_C(0x00000000008996fa), 0.520, 0.537460019200000) \
STEP( 105, UINT64_C(0x00000000008bfae2), 0.525, 0.546796933593750) \
STEP( 106, UINT64_C(0x00000000008e5d8f), 0.530, 0.556115145800000) \
STEP( 107, UINT64_C(0x000000000090bec5), 0.535, 0.565410940131250) \
STEP( 108, UINT64_C(0x0000000000931e44), 0.540, 0.574680614400000) \
STEP( 109, UINT64_C(0x0000000000957bd0), 0.545, 0.583920482168750) \
STEP( 110, UINT64_C(0x000000000097d729), 0.550, 0.593126875000000) \
STEP( 111, UINT64_C(0x00000000009a3014), 0.555, 0.602296144706250) \
STEP( 112, UINT64_C(0x00000000009c8653), 0.560, 0.611424665600000) \
STEP( 113, UINT64_C(0x00000000009ed9aa), 0.565, 0.620508836743750) \
STEP( 114, UINT64_C(0x0000000000a129dd), 0.570, 0.629545084200000) \
STEP( 115, UINT64_C(0x0000000000a376b1), 0.575, 0.638529863281250) \
STEP( 116, UINT64_C(0x0000000000a5bfea), 0.580, 0.647459660800000) \
STEP( 117, UINT64_C(0x0000000000a8054e), 0.585, 0.656330997318750) \
STEP( 118, UINT64_C(0x0000000000aa46a4), 0.590, 0.665140429400000) \
STEP( 119, UINT64_C(0x0000000000ac83b2), 0.595, 0.673884551856250) \
STEP( 120, UINT64_C(0x0000000000aebc40), 0.600, 0.682560000000000) \
STEP( 121, UINT64_C(0x0000000000b0f016), 0.605, 0.691163451893750) \
STEP( 122, UINT64_C(0x0000000000b31efd), 0.610, 0.699691630600000) \
STEP( 123, UINT64_C(0x0000000000b548bf), 0.615, 0.708141306431250) \
STEP( 124, UINT64_C(0x0000000000b76d27), 0.620, 0.716509299200000) \
STEP( 125, UINT64_C(0x0000000000b98c00), 0.625, 0.724792480468750) \
STEP( 126, UINT64_C(0x0000000000bba516), 0.630, 0.732987775800000) \
STEP( 127, UINT64_C(0x0000000000bdb837), 0.635, 0.741092167006250) \
STEP( 128, UINT64_C(0x0000000000bfc531), 0.640, 0.749102694400000) \
STEP( 129, UINT64_C(0x0000000000c1cbd4), 0.645, 0.757016459043750) \
STEP( 130, UINT64_C(0x0000000000c3cbf0), 0.650, 0.764830625000000) \
STEP( 131, UINT64_C(0x0000000000c5c557), 0.655, 0.772542421581250) \
STEP( 132, UINT64_C(0x0000000000c7b7da), 0.660, 0.780149145600000) \
STEP( 133, UINT64_C(0x0000000000c9a34f), 0.665, 0.787648163618750) \
STEP( 134, UINT64_C(0x0000000000cb878a), 0.670, 0.795036914200000) \
STEP( 135, UINT64_C(0x0000000000cd6460), 0.675, 0.802312910156250) \
STEP( 136, UINT64_C(0x0000000000cf39ab), 0.680, 0.809473740800000) \
STEP( 137, UINT64_C(0x0000000000d10743), 0.685, 0.816517074193750) \
STEP( 138, UINT64_C(0x0000000000d2cd01), 0.690, 0.823440659400000) \
STEP( 139, UINT64_C(0x0000000000d48ac2), 0.695, 0.830242328731250) \
STEP( 140, UINT64_C(0x0000000000d64063), 0.700, 0.836920000000000) \
STEP( 141, UINT64_C(0x0000000000d7edc2), 0.705, 0.843471678768750) \
STEP( 142, UINT64_C(0x0000000000d992bf), 0.710, 0.849895460600000) \
STEP( 143, UINT64_C(0x0000000000db2f3c), 0.715, 0.856189533306250) \
STEP( 144, UINT64_C(0x0000000000dcc31c), 0.720, 0.862352179200000) \
STEP( 145, UINT64_C(0x0000000000de4e44), 0.725, 0.868381777343750) \
STEP( 146, UINT64_C(0x0000000000dfd09a), 0.730, 0.874276805800000) \
STEP( 147, UINT64_C(0x0000000000e14a07), 0.735, 0.880035843881250) \
STEP( 148, UINT64_C(0x0000000000e2ba74), 0.740, 0.885657574400000) \
STEP( 149, UINT64_C(0x0000000000e421cd), 0.745, 0.891140785918750) \
STEP( 150, UINT64_C(0x0000000000e58000), 0.750, 0.896484375000000) \
STEP( 151, UINT64_C(0x0000000000e6d4fb), 0.755, 0.901687348456250) \
STEP( 152, UINT64_C(0x0000000000e820b0), 0.760, 0.906748825600000) \
STEP( 153, UINT64_C(0x0000000000e96313), 0.765, 0.911668040493750) \
STEP( 154, UINT64_C(0x0000000000ea9c18), 0.770, 0.916444344200000) \
STEP( 155, UINT64_C(0x0000000000ebcbb7), 0.775, 0.921077207031250) \
STEP( 156, UINT64_C(0x0000000000ecf1e8), 0.780, 0.925566220800000) \
STEP( 157, UINT64_C(0x0000000000ee0ea7), 0.785, 0.929911101068750) \
STEP( 158, UINT64_C(0x0000000000ef21f1), 0.790, 0.934111689400000) \
STEP( 159, UINT64_C(0x0000000000f02bc6), 0.795, 0.938167955606250) \
STEP( 160, UINT64_C(0x0000000000f12c27), 0.800, 0.942080000000000) \
STEP( 161, UINT64_C(0x0000000000f22319), 0.805, 0.945848055643750) \
STEP( 162, UINT64_C(0x0000000000f310a1), 0.810, 0.949472490600000) \
STEP( 163, UINT64_C(0x0000000000f3f4c7), 0.815, 0.952953810181250) \
STEP( 164, UINT64_C(0x0000000000f4cf98), 0.820, 0.956292659200000) \
STEP( 165, UINT64_C(0x0000000000f5a120), 0.825, 0.959489824218750) \
STEP( 166, UINT64_C(0x0000000000f6696e), 0.830, 0.962546235800000) \
STEP( 167, UINT64_C(0x0000000000f72894), 0.835, 0.965462970756250) \
STEP( 168, UINT64_C(0x0000000000f7dea8), 0.840, 0.968241254400000) \
STEP( 169, UINT64_C(0x0000000000f88bc0), 0.845, 0.970882462793750) \
STEP( 170, UINT64_C(0x0000000000f92ff6), 0.850, 0.973388125000000) \
STEP( 171, UINT64_C(0x0000000000f9cb67), 0.855, 0.975759925331250) \
STEP( 172, UINT64_C(0x0000000000fa5e30), 0.860, 0.977999705600000) \
STEP( 173, UINT64_C(0x0000000000fae874), 0.865, 0.980109467368750) \
STEP( 174, UINT64_C(0x0000000000fb6a57), 0.870, 0.982091374200000) \
STEP( 175, UINT64_C(0x0000000000fbe400), 0.875, 0.983947753906250) \
STEP( 176, UINT64_C(0x0000000000fc5598), 0.880, 0.985681100800000) \
STEP( 177, UINT64_C(0x0000000000fcbf4e), 0.885, 0.987294077943750) \
STEP( 178, UINT64_C(0x0000000000fd214f), 0.890, 0.988789519400000) \
STEP( 179, UINT64_C(0x0000000000fd7bcf), 0.895, 0.990170432481250) \
STEP( 180, UINT64_C(0x0000000000fdcf03), 0.900, 0.991440000000000) \
STEP( 181, UINT64_C(0x0000000000fe1b23), 0.905, 0.992601582518750) \
STEP( 182, UINT64_C(0x0000000000fe606a), 0.910, 0.993658720600000) \
STEP( 183, UINT64_C(0x0000000000fe9f18), 0.915, 0.994615137056250) \
STEP( 184, UINT64_C(0x0000000000fed76e), 0.920, 0.995474739200000) \
STEP( 185, UINT64_C(0x0000000000ff09b0), 0.925, 0.996241621093750) \
STEP( 186, UINT64_C(0x0000000000ff3627), 0.930, 0.996920065800000) \
STEP( 187, UINT64_C(0x0000000000ff5d1d), 0.935, 0.997514547631250) \
STEP( 188, UINT64_C(0x0000000000ff7ee0), 0.940, 0.998029734400000) \
STEP( 189, UINT64_C(0x0000000000ff9bc3), 0.945, 0.998470489668750) \
STEP( 190, UINT64_C(0x0000000000ffb419), 0.950, 0.998841875000000) \
STEP( 191, UINT64_C(0x0000000000ffc83d), 0.955, 0.999149152206250) \
STEP( 192, UINT64_C(0x0000000000ffd888), 0.960, 0.999397785600000) \
STEP( 193, UINT64_C(0x0000000000ffe55b), 0.965, 0.999593444243750) \
STEP( 194, UINT64_C(0x0000000000ffef17), 0.970, 0.999742004200000) \
STEP( 195, UINT64_C(0x0000000000fff623), 0.975, 0.999849550781250) \
STEP( 196, UINT64_C(0x0000000000fffae9), 0.980, 0.999922380800000) \
STEP( 197, UINT64_C(0x0000000000fffdd6), 0.985, 0.999967004818750) \
STEP( 198, UINT64_C(0x0000000000ffff5a), 0.990, 0.999990149400000) \
STEP( 199, UINT64_C(0x0000000000ffffeb), 0.995, 0.999998759356250) \
STEP( 200, UINT64_C(0x0000000001000000), 1.000, 1.000000000000000) \
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -1,115 +0,0 @@
#!/bin/sh
#
# Generate a discrete lookup table for a sigmoid function in the smoothstep
# family (https://en.wikipedia.org/wiki/Smoothstep), where the lookup table
# entries correspond to x in [1/nsteps, 2/nsteps, ..., nsteps/nsteps]. Encode
# the entries using a binary fixed point representation.
#
# Usage: smoothstep.sh <variant> <nsteps> <bfp> <xprec> <yprec>
#
# <variant> is in {smooth, smoother, smoothest}.
# <nsteps> must be greater than zero.
# <bfp> must be in [0..62]; reasonable values are roughly [10..30].
# <xprec> is x decimal precision.
# <yprec> is y decimal precision.
#set -x
cmd="sh smoothstep.sh $*"
variant=$1
nsteps=$2
bfp=$3
xprec=$4
yprec=$5
case "${variant}" in
smooth)
;;
smoother)
;;
smoothest)
;;
*)
echo "Unsupported variant"
exit 1
;;
esac
smooth() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx _2 lx 3 ^ '*' 3 lx 2 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
smoother() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx 6 lx 5 ^ '*' _15 lx 4 ^ '*' + 10 lx 3 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
smoothest() {
step=$1
y=`echo ${yprec} k ${step} ${nsteps} / sx _20 lx 7 ^ '*' 70 lx 6 ^ '*' + _84 lx 5 ^ '*' + 35 lx 4 ^ '*' + p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
h=`echo ${yprec} k 2 ${bfp} ^ ${y} '*' p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g' | tr '.' ' ' | awk '{print $1}' `
}
cat <<EOF
/*
* This file was generated by the following command:
* $cmd
*/
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
/*
* This header defines a precomputed table based on the smoothstep family of
* sigmoidal curves (https://en.wikipedia.org/wiki/Smoothstep) that grow from 0
* to 1 in 0 <= x <= 1. The table is stored as integer fixed point values so
* that floating point math can be avoided.
*
* 3 2
* smoothstep(x) = -2x + 3x
*
* 5 4 3
* smootherstep(x) = 6x - 15x + 10x
*
* 7 6 5 4
* smootheststep(x) = -20x + 70x - 84x + 35x
*/
#define SMOOTHSTEP_VARIANT "${variant}"
#define SMOOTHSTEP_NSTEPS ${nsteps}
#define SMOOTHSTEP_BFP ${bfp}
#define SMOOTHSTEP \\
/* STEP(step, h, x, y) */ \\
EOF
s=1
while [ $s -le $nsteps ] ; do
$variant ${s}
x=`echo ${xprec} k ${s} ${nsteps} / p | dc | tr -d '\\\\\n' | sed -e 's#^\.#0.#g'`
printf ' STEP(%4d, UINT64_C(0x%016x), %s, %s) \\\n' ${s} ${h} ${x} ${y}
s=$((s+1))
done
echo
cat <<EOF
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/
EOF

View File

@@ -4,7 +4,6 @@
typedef struct tcache_bin_stats_s tcache_bin_stats_t;
typedef struct malloc_bin_stats_s malloc_bin_stats_t;
typedef struct malloc_large_stats_s malloc_large_stats_t;
typedef struct malloc_huge_stats_s malloc_huge_stats_t;
typedef struct arena_stats_s arena_stats_t;
typedef struct chunk_stats_s chunk_stats_t;
@@ -21,6 +20,12 @@ struct tcache_bin_stats_s {
};
struct malloc_bin_stats_s {
/*
* Current number of bytes allocated, including objects currently
* cached by tcache.
*/
size_t allocated;
/*
* Total number of allocation/deallocation requests served directly by
* the bin. Note that tcache may allocate an object, then recycle it
@@ -37,12 +42,6 @@ struct malloc_bin_stats_s {
*/
uint64_t nrequests;
/*
* Current number of regions of this size class, including regions
* currently cached by tcache.
*/
size_t curregs;
/* Number of tcache fills from this bin. */
uint64_t nfills;
@@ -79,25 +78,10 @@ struct malloc_large_stats_s {
*/
uint64_t nrequests;
/*
* Current number of runs of this size class, including runs currently
* cached by tcache.
*/
/* Current number of runs of this size class. */
size_t curruns;
};
struct malloc_huge_stats_s {
/*
* Total number of allocation/deallocation requests served directly by
* the arena.
*/
uint64_t nmalloc;
uint64_t ndalloc;
/* Current number of (multi-)chunk allocations of this size class. */
size_t curhchunks;
};
struct arena_stats_s {
/* Number of bytes currently mapped. */
size_t mapped;
@@ -111,28 +95,34 @@ struct arena_stats_s {
uint64_t nmadvise;
uint64_t purged;
/*
* Number of bytes currently mapped purely for metadata purposes, and
* number of bytes currently allocated for internal metadata.
*/
size_t metadata_mapped;
size_t metadata_allocated; /* Protected via atomic_*_z(). */
/* Per-size-category statistics. */
size_t allocated_large;
uint64_t nmalloc_large;
uint64_t ndalloc_large;
uint64_t nrequests_large;
size_t allocated_huge;
uint64_t nmalloc_huge;
uint64_t ndalloc_huge;
/* One element for each large size class. */
/*
* One element for each possible size class, including sizes that
* overlap with bin size classes. This is necessary because ipalloc()
* sometimes has to use such large objects in order to assure proper
* alignment.
*/
malloc_large_stats_t *lstats;
};
/* One element for each huge size class. */
malloc_huge_stats_t *hstats;
struct chunk_stats_s {
/* Number of chunks that were allocated. */
uint64_t nchunks;
/* High-water mark for number of chunks allocated. */
size_t highchunks;
/*
* Current number of chunks allocated. This value isn't maintained for
* any other purpose, so keep track of it in order to be able to set
* highchunks.
*/
size_t curchunks;
};
#endif /* JEMALLOC_H_STRUCTS */
@@ -167,25 +157,15 @@ stats_cactive_get(void)
JEMALLOC_INLINE void
stats_cactive_add(size_t size)
{
UNUSED size_t cactive;
assert(size > 0);
assert((size & chunksize_mask) == 0);
cactive = atomic_add_z(&stats_cactive, size);
assert(cactive - size < cactive);
atomic_add_z(&stats_cactive, size);
}
JEMALLOC_INLINE void
stats_cactive_sub(size_t size)
{
UNUSED size_t cactive;
assert(size > 0);
assert((size & chunksize_mask) == 0);
cactive = atomic_sub_z(&stats_cactive, size);
assert(cactive + size > cactive);
atomic_sub_z(&stats_cactive, size);
}
#endif

View File

@@ -4,7 +4,6 @@
typedef struct tcache_bin_info_s tcache_bin_info_t;
typedef struct tcache_bin_s tcache_bin_t;
typedef struct tcache_s tcache_t;
typedef struct tcaches_s tcaches_t;
/*
* tcache pointers close to NULL are used to encode state information that is
@@ -16,11 +15,6 @@ typedef struct tcaches_s tcaches_t;
#define TCACHE_STATE_PURGATORY ((tcache_t *)(uintptr_t)3)
#define TCACHE_STATE_MAX TCACHE_STATE_PURGATORY
/*
* Absolute minimum number of cache slots for each small bin.
*/
#define TCACHE_NSLOTS_SMALL_MIN 20
/*
* Absolute maximum number of cache slots for each small bin in the thread
* cache. This is an additional constraint beyond that imposed as: twice the
@@ -70,21 +64,15 @@ struct tcache_bin_s {
int low_water; /* Min # cached since last GC. */
unsigned lg_fill_div; /* Fill (ncached_max >> lg_fill_div). */
unsigned ncached; /* # of cached objects. */
/*
* To make use of adjacent cacheline prefetch, the items in the avail
* stack goes to higher address for newer allocations. avail points
* just above the available space, which means that
* avail[-ncached, ... -1] are available items and the lowest item will
* be allocated first.
*/
void **avail; /* Stack of available objects. */
};
struct tcache_s {
ql_elm(tcache_t) link; /* Used for aggregating stats. */
uint64_t prof_accumbytes;/* Cleared after arena_prof_accum(). */
ticker_t gc_ticker; /* Drives incremental GC. */
szind_t next_gc_bin; /* Next bin to GC. */
uint64_t prof_accumbytes;/* Cleared after arena_prof_accum() */
arena_t *arena; /* This thread's arena. */
unsigned ev_cnt; /* Event count since incremental GC. */
unsigned next_gc_bin; /* Next bin to GC. */
tcache_bin_t tbins[1]; /* Dynamically sized. */
/*
* The pointer stacks associated with tbins follow as a contiguous
@@ -94,14 +82,6 @@ struct tcache_s {
*/
};
/* Linkage for list of available (previously used) explicit tcache IDs. */
struct tcaches_s {
union {
tcache_t *tcache;
tcaches_t *next;
};
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
@@ -115,90 +95,84 @@ extern tcache_bin_info_t *tcache_bin_info;
* Number of tcache bins. There are NBINS small-object bins, plus 0 or more
* large-object bins.
*/
extern unsigned nhbins;
extern size_t nhbins;
/* Maximum cached size class. */
extern size_t tcache_maxclass;
/*
* Explicit tcaches, managed via the tcache.{create,flush,destroy} mallctls and
* usable via the MALLOCX_TCACHE() flag. The automatic per thread tcaches are
* completely disjoint from this data structure. tcaches starts off as a sparse
* array, so it has no physical memory footprint until individual pages are
* touched. This allows the entire array to be allocated the first time an
* explicit tcache is created without a disproportionate impact on memory usage.
*/
extern tcaches_t *tcaches;
extern size_t tcache_maxclass;
size_t tcache_salloc(const void *ptr);
void tcache_event_hard(tsd_t *tsd, tcache_t *tcache);
void *tcache_alloc_small_hard(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
tcache_bin_t *tbin, szind_t binind, bool *tcache_success);
void tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
szind_t binind, unsigned rem);
void tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
unsigned rem, tcache_t *tcache);
void tcache_event_hard(tcache_t *tcache);
void *tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin,
size_t binind);
void tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache);
void tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache);
void tcache_arena_associate(tcache_t *tcache, arena_t *arena);
void tcache_arena_reassociate(tcache_t *tcache, arena_t *oldarena,
arena_t *newarena);
void tcache_arena_dissociate(tcache_t *tcache, arena_t *arena);
tcache_t *tcache_get_hard(tsd_t *tsd);
tcache_t *tcache_create(tsd_t *tsd, arena_t *arena);
void tcache_cleanup(tsd_t *tsd);
void tcache_enabled_cleanup(tsd_t *tsd);
void tcache_arena_dissociate(tcache_t *tcache);
tcache_t *tcache_create(arena_t *arena);
void tcache_destroy(tcache_t *tcache);
void tcache_thread_cleanup(void *arg);
void tcache_stats_merge(tcache_t *tcache, arena_t *arena);
bool tcaches_create(tsd_t *tsd, unsigned *r_ind);
void tcaches_flush(tsd_t *tsd, unsigned ind);
void tcaches_destroy(tsd_t *tsd, unsigned ind);
bool tcache_boot(void);
bool tcache_boot0(void);
bool tcache_boot1(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void tcache_event(tsd_t *tsd, tcache_t *tcache);
malloc_tsd_protos(JEMALLOC_ATTR(unused), tcache, tcache_t *)
malloc_tsd_protos(JEMALLOC_ATTR(unused), tcache_enabled, tcache_enabled_t)
void tcache_event(tcache_t *tcache);
void tcache_flush(void);
bool tcache_enabled_get(void);
tcache_t *tcache_get(tsd_t *tsd, bool create);
tcache_t *tcache_get(bool create);
void tcache_enabled_set(bool enabled);
void *tcache_alloc_easy(tcache_bin_t *tbin, bool *tcache_success);
void *tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
size_t size, szind_t ind, bool zero, bool slow_path);
void *tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
size_t size, szind_t ind, bool zero, bool slow_path);
void tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr,
szind_t binind, bool slow_path);
void tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr,
size_t size, bool slow_path);
tcache_t *tcaches_get(tsd_t *tsd, unsigned ind);
void *tcache_alloc_easy(tcache_bin_t *tbin);
void *tcache_alloc_small(tcache_t *tcache, size_t size, bool zero);
void *tcache_alloc_large(tcache_t *tcache, size_t size, bool zero);
void tcache_dalloc_small(tcache_t *tcache, void *ptr, size_t binind);
void tcache_dalloc_large(tcache_t *tcache, void *ptr, size_t size);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TCACHE_C_))
/* Map of thread-specific caches. */
malloc_tsd_externs(tcache, tcache_t *)
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, tcache, tcache_t *, NULL,
tcache_thread_cleanup)
/* Per thread flag that allows thread caches to be disabled. */
malloc_tsd_externs(tcache_enabled, tcache_enabled_t)
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, tcache_enabled, tcache_enabled_t,
tcache_enabled_default, malloc_tsd_no_cleanup)
JEMALLOC_INLINE void
tcache_flush(void)
{
tsd_t *tsd;
tcache_t *tcache;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_cleanup(tsd);
tcache = *tcache_tsd_get();
if ((uintptr_t)tcache <= (uintptr_t)TCACHE_STATE_MAX)
return;
tcache_destroy(tcache);
tcache = NULL;
tcache_tsd_set(&tcache);
}
JEMALLOC_INLINE bool
tcache_enabled_get(void)
{
tsd_t *tsd;
tcache_enabled_t tcache_enabled;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_enabled = tsd_tcache_enabled_get(tsd);
tcache_enabled = *tcache_enabled_tsd_get();
if (tcache_enabled == tcache_enabled_default) {
tcache_enabled = (tcache_enabled_t)opt_tcache;
tsd_tcache_enabled_set(tsd, tcache_enabled);
tcache_enabled_tsd_set(&tcache_enabled);
}
return ((bool)tcache_enabled);
@@ -207,171 +181,180 @@ tcache_enabled_get(void)
JEMALLOC_INLINE void
tcache_enabled_set(bool enabled)
{
tsd_t *tsd;
tcache_enabled_t tcache_enabled;
tcache_t *tcache;
cassert(config_tcache);
tsd = tsd_fetch();
tcache_enabled = (tcache_enabled_t)enabled;
tsd_tcache_enabled_set(tsd, tcache_enabled);
if (!enabled)
tcache_cleanup(tsd);
tcache_enabled_tsd_set(&tcache_enabled);
tcache = *tcache_tsd_get();
if (enabled) {
if (tcache == TCACHE_STATE_DISABLED) {
tcache = NULL;
tcache_tsd_set(&tcache);
}
} else /* disabled */ {
if (tcache > TCACHE_STATE_MAX) {
tcache_destroy(tcache);
tcache = NULL;
}
if (tcache == NULL) {
tcache = TCACHE_STATE_DISABLED;
tcache_tsd_set(&tcache);
}
}
}
JEMALLOC_ALWAYS_INLINE tcache_t *
tcache_get(tsd_t *tsd, bool create)
tcache_get(bool create)
{
tcache_t *tcache;
if (!config_tcache)
if (config_tcache == false)
return (NULL);
if (config_lazy_lock && isthreaded == false)
return (NULL);
tcache = tsd_tcache_get(tsd);
if (!create)
return (tcache);
if (unlikely(tcache == NULL) && tsd_nominal(tsd)) {
tcache = tcache_get_hard(tsd);
tsd_tcache_set(tsd, tcache);
tcache = *tcache_tsd_get();
if ((uintptr_t)tcache <= (uintptr_t)TCACHE_STATE_MAX) {
if (tcache == TCACHE_STATE_DISABLED)
return (NULL);
if (tcache == NULL) {
if (create == false) {
/*
* Creating a tcache here would cause
* allocation as a side effect of free().
* Ordinarily that would be okay since
* tcache_create() failure is a soft failure
* that doesn't propagate. However, if TLS
* data are freed via free() as in glibc,
* subtle corruption could result from setting
* a TLS variable after its backing memory is
* freed.
*/
return (NULL);
}
if (tcache_enabled_get() == false) {
tcache_enabled_set(false); /* Memoize. */
return (NULL);
}
return (tcache_create(choose_arena(NULL)));
}
if (tcache == TCACHE_STATE_PURGATORY) {
/*
* Make a note that an allocator function was called
* after tcache_thread_cleanup() was called.
*/
tcache = TCACHE_STATE_REINCARNATED;
tcache_tsd_set(&tcache);
return (NULL);
}
if (tcache == TCACHE_STATE_REINCARNATED)
return (NULL);
not_reached();
}
return (tcache);
}
JEMALLOC_ALWAYS_INLINE void
tcache_event(tsd_t *tsd, tcache_t *tcache)
tcache_event(tcache_t *tcache)
{
if (TCACHE_GC_INCR == 0)
return;
if (unlikely(ticker_tick(&tcache->gc_ticker)))
tcache_event_hard(tsd, tcache);
tcache->ev_cnt++;
assert(tcache->ev_cnt <= TCACHE_GC_INCR);
if (tcache->ev_cnt == TCACHE_GC_INCR)
tcache_event_hard(tcache);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_easy(tcache_bin_t *tbin, bool *tcache_success)
tcache_alloc_easy(tcache_bin_t *tbin)
{
void *ret;
if (unlikely(tbin->ncached == 0)) {
if (tbin->ncached == 0) {
tbin->low_water = -1;
*tcache_success = false;
return (NULL);
}
/*
* tcache_success (instead of ret) should be checked upon the return of
* this function. We avoid checking (ret == NULL) because there is
* never a null stored on the avail stack (which is unknown to the
* compiler), and eagerly checking ret would cause pipeline stall
* (waiting for the cacheline).
*/
*tcache_success = true;
ret = *(tbin->avail - tbin->ncached);
tbin->ncached--;
if (unlikely((int)tbin->ncached < tbin->low_water))
if ((int)tbin->ncached < tbin->low_water)
tbin->low_water = tbin->ncached;
ret = tbin->avail[tbin->ncached];
return (ret);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
szind_t binind, bool zero, bool slow_path)
tcache_alloc_small(tcache_t *tcache, size_t size, bool zero)
{
void *ret;
size_t binind;
tcache_bin_t *tbin;
bool tcache_success;
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
binind = SMALL_SIZE2BIN(size);
assert(binind < NBINS);
tbin = &tcache->tbins[binind];
ret = tcache_alloc_easy(tbin, &tcache_success);
assert(tcache_success == (ret != NULL));
if (unlikely(!tcache_success)) {
bool tcache_hard_success;
arena = arena_choose(tsd, arena);
if (unlikely(arena == NULL))
return (NULL);
ret = tcache_alloc_small_hard(tsd, arena, tcache, tbin, binind,
&tcache_hard_success);
if (tcache_hard_success == false)
size = arena_bin_info[binind].reg_size;
ret = tcache_alloc_easy(tbin);
if (ret == NULL) {
ret = tcache_alloc_small_hard(tcache, tbin, binind);
if (ret == NULL)
return (NULL);
}
assert(tcache_salloc(ret) == arena_bin_info[binind].reg_size);
assert(ret);
/*
* Only compute usize if required. The checks in the following if
* statement are all static.
*/
if (config_prof || (slow_path && config_fill) || unlikely(zero)) {
usize = index2size(binind);
assert(tcache_salloc(ret) == usize);
}
if (likely(!zero)) {
if (slow_path && config_fill) {
if (unlikely(opt_junk_alloc)) {
if (zero == false) {
if (config_fill) {
if (opt_junk) {
arena_alloc_junk_small(ret,
&arena_bin_info[binind], false);
} else if (unlikely(opt_zero))
memset(ret, 0, usize);
} else if (opt_zero)
memset(ret, 0, size);
}
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
if (slow_path && config_fill && unlikely(opt_junk_alloc)) {
if (config_fill && opt_junk) {
arena_alloc_junk_small(ret, &arena_bin_info[binind],
true);
}
memset(ret, 0, usize);
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
if (config_stats)
tbin->tstats.nrequests++;
if (config_prof)
tcache->prof_accumbytes += usize;
tcache_event(tsd, tcache);
tcache->prof_accumbytes += arena_bin_info[binind].reg_size;
tcache_event(tcache);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void *
tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
szind_t binind, bool zero, bool slow_path)
tcache_alloc_large(tcache_t *tcache, size_t size, bool zero)
{
void *ret;
size_t binind;
tcache_bin_t *tbin;
bool tcache_success;
size = PAGE_CEILING(size);
assert(size <= tcache_maxclass);
binind = NBINS + (size >> LG_PAGE) - 1;
assert(binind < nhbins);
tbin = &tcache->tbins[binind];
ret = tcache_alloc_easy(tbin, &tcache_success);
assert(tcache_success == (ret != NULL));
if (unlikely(!tcache_success)) {
ret = tcache_alloc_easy(tbin);
if (ret == NULL) {
/*
* Only allocate one large object at a time, because it's quite
* expensive to create one and not use it.
*/
arena = arena_choose(tsd, arena);
if (unlikely(arena == NULL))
return (NULL);
ret = arena_malloc_large(tsd, arena, binind, zero);
ret = arena_malloc_large(tcache->arena, size, zero);
if (ret == NULL)
return (NULL);
} else {
size_t usize JEMALLOC_CC_SILENCE_INIT(0);
/* Only compute usize on demand */
if (config_prof || (slow_path && config_fill) ||
unlikely(zero)) {
usize = index2size(binind);
assert(usize <= tcache_maxclass);
}
if (config_prof && usize == LARGE_MINCLASS) {
if (config_prof && prof_promote && size == PAGE) {
arena_chunk_t *chunk =
(arena_chunk_t *)CHUNK_ADDR2BASE(ret);
size_t pageind = (((uintptr_t)ret - (uintptr_t)chunk) >>
@@ -379,56 +362,57 @@ tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
arena_mapbits_large_binind_set(chunk, pageind,
BININD_INVALID);
}
if (likely(!zero)) {
if (slow_path && config_fill) {
if (unlikely(opt_junk_alloc))
memset(ret, 0xa5, usize);
else if (unlikely(opt_zero))
memset(ret, 0, usize);
if (zero == false) {
if (config_fill) {
if (opt_junk)
memset(ret, 0xa5, size);
else if (opt_zero)
memset(ret, 0, size);
}
} else
memset(ret, 0, usize);
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
} else {
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
if (config_stats)
tbin->tstats.nrequests++;
if (config_prof)
tcache->prof_accumbytes += usize;
tcache->prof_accumbytes += size;
}
tcache_event(tsd, tcache);
tcache_event(tcache);
return (ret);
}
JEMALLOC_ALWAYS_INLINE void
tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
bool slow_path)
tcache_dalloc_small(tcache_t *tcache, void *ptr, size_t binind)
{
tcache_bin_t *tbin;
tcache_bin_info_t *tbin_info;
assert(tcache_salloc(ptr) <= SMALL_MAXCLASS);
if (slow_path && config_fill && unlikely(opt_junk_free))
if (config_fill && opt_junk)
arena_dalloc_junk_small(ptr, &arena_bin_info[binind]);
tbin = &tcache->tbins[binind];
tbin_info = &tcache_bin_info[binind];
if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
tcache_bin_flush_small(tsd, tcache, tbin, binind,
(tbin_info->ncached_max >> 1));
if (tbin->ncached == tbin_info->ncached_max) {
tcache_bin_flush_small(tbin, binind, (tbin_info->ncached_max >>
1), tcache);
}
assert(tbin->ncached < tbin_info->ncached_max);
tbin->avail[tbin->ncached] = ptr;
tbin->ncached++;
*(tbin->avail - tbin->ncached) = ptr;
tcache_event(tsd, tcache);
tcache_event(tcache);
}
JEMALLOC_ALWAYS_INLINE void
tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, size_t size,
bool slow_path)
tcache_dalloc_large(tcache_t *tcache, void *ptr, size_t size)
{
szind_t binind;
size_t binind;
tcache_bin_t *tbin;
tcache_bin_info_t *tbin_info;
@@ -436,31 +420,22 @@ tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, size_t size,
assert(tcache_salloc(ptr) > SMALL_MAXCLASS);
assert(tcache_salloc(ptr) <= tcache_maxclass);
binind = size2index(size);
binind = NBINS + (size >> LG_PAGE) - 1;
if (slow_path && config_fill && unlikely(opt_junk_free))
arena_dalloc_junk_large(ptr, size);
if (config_fill && opt_junk)
memset(ptr, 0x5a, size);
tbin = &tcache->tbins[binind];
tbin_info = &tcache_bin_info[binind];
if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
tcache_bin_flush_large(tsd, tbin, binind,
(tbin_info->ncached_max >> 1), tcache);
if (tbin->ncached == tbin_info->ncached_max) {
tcache_bin_flush_large(tbin, binind, (tbin_info->ncached_max >>
1), tcache);
}
assert(tbin->ncached < tbin_info->ncached_max);
tbin->avail[tbin->ncached] = ptr;
tbin->ncached++;
*(tbin->avail - tbin->ncached) = ptr;
tcache_event(tsd, tcache);
}
JEMALLOC_ALWAYS_INLINE tcache_t *
tcaches_get(tsd_t *tsd, unsigned ind)
{
tcaches_t *elm = &tcaches[ind];
if (unlikely(elm->tcache == NULL))
elm->tcache = tcache_create(tsd, arena_choose(tsd, NULL));
return (elm->tcache);
tcache_event(tcache);
}
#endif

View File

@@ -1,75 +0,0 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct ticker_s ticker_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct ticker_s {
int32_t tick;
int32_t nticks;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void ticker_init(ticker_t *ticker, int32_t nticks);
void ticker_copy(ticker_t *ticker, const ticker_t *other);
int32_t ticker_read(const ticker_t *ticker);
bool ticker_ticks(ticker_t *ticker, int32_t nticks);
bool ticker_tick(ticker_t *ticker);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TICKER_C_))
JEMALLOC_INLINE void
ticker_init(ticker_t *ticker, int32_t nticks)
{
ticker->tick = nticks;
ticker->nticks = nticks;
}
JEMALLOC_INLINE void
ticker_copy(ticker_t *ticker, const ticker_t *other)
{
*ticker = *other;
}
JEMALLOC_INLINE int32_t
ticker_read(const ticker_t *ticker)
{
return (ticker->tick);
}
JEMALLOC_INLINE bool
ticker_ticks(ticker_t *ticker, int32_t nticks)
{
if (unlikely(ticker->tick < nticks)) {
ticker->tick = ticker->nticks;
return (true);
}
ticker->tick -= nticks;
return(false);
}
JEMALLOC_INLINE bool
ticker_tick(ticker_t *ticker)
{
return (ticker_ticks(ticker, 1));
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -2,7 +2,7 @@
#ifdef JEMALLOC_H_TYPES
/* Maximum number of malloc_tsd users with cleanup functions. */
#define MALLOC_TSD_CLEANUPS_MAX 2
#define MALLOC_TSD_CLEANUPS_MAX 8
typedef bool (*malloc_tsd_cleanup_t)(void);
@@ -12,18 +12,9 @@ typedef struct tsd_init_block_s tsd_init_block_t;
typedef struct tsd_init_head_s tsd_init_head_t;
#endif
typedef struct tsd_s tsd_t;
typedef enum {
tsd_state_uninitialized,
tsd_state_nominal,
tsd_state_purgatory,
tsd_state_reincarnated
} tsd_state_t;
/*
* TLS/TSD-agnostic macro-based implementation of thread-specific data. There
* are five macros that support (at least) three use cases: file-private,
* are four macros that support (at least) three use cases: file-private,
* library-private, and library-private inlined. Following is an example
* library-private tsd variable:
*
@@ -33,36 +24,34 @@ typedef enum {
* int y;
* } example_t;
* #define EX_INITIALIZER JEMALLOC_CONCAT({0, 0})
* malloc_tsd_types(example_, example_t)
* malloc_tsd_protos(, example_, example_t)
* malloc_tsd_externs(example_, example_t)
* malloc_tsd_protos(, example, example_t *)
* malloc_tsd_externs(example, example_t *)
* In example.c:
* malloc_tsd_data(, example_, example_t, EX_INITIALIZER)
* malloc_tsd_funcs(, example_, example_t, EX_INITIALIZER,
* malloc_tsd_data(, example, example_t *, EX_INITIALIZER)
* malloc_tsd_funcs(, example, example_t *, EX_INITIALIZER,
* example_tsd_cleanup)
*
* The result is a set of generated functions, e.g.:
*
* bool example_tsd_boot(void) {...}
* example_t *example_tsd_get() {...}
* void example_tsd_set(example_t *val) {...}
* example_t **example_tsd_get() {...}
* void example_tsd_set(example_t **val) {...}
*
* Note that all of the functions deal in terms of (a_type *) rather than
* (a_type) so that it is possible to support non-pointer types (unlike
* (a_type) so that it is possible to support non-pointer types (unlike
* pthreads TSD). example_tsd_cleanup() is passed an (a_type *) pointer that is
* cast to (void *). This means that the cleanup function needs to cast the
* function argument to (a_type *), then dereference the resulting pointer to
* access fields, e.g.
* cast to (void *). This means that the cleanup function needs to cast *and*
* dereference the function argument, e.g.:
*
* void
* example_tsd_cleanup(void *arg)
* {
* example_t *example = (example_t *)arg;
* example_t *example = *(example_t **)arg;
*
* example->x = 42;
* [...]
* if ([want the cleanup function to be called again])
* example_tsd_set(example);
* if ([want the cleanup function to be called again]) {
* example_tsd_set(&example);
* }
* }
*
* If example_tsd_set() is called within example_tsd_cleanup(), it will be
@@ -71,96 +60,63 @@ typedef enum {
* non-NULL.
*/
/* malloc_tsd_types(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_types(a_name, a_type)
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_types(a_name, a_type)
#elif (defined(_WIN32))
#define malloc_tsd_types(a_name, a_type) \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##tsd_wrapper_t;
#else
#define malloc_tsd_types(a_name, a_type) \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##tsd_wrapper_t;
#endif
/* malloc_tsd_protos(). */
#define malloc_tsd_protos(a_attr, a_name, a_type) \
a_attr bool \
a_name##tsd_boot0(void); \
a_attr void \
a_name##tsd_boot1(void); \
a_attr bool \
a_name##tsd_boot(void); \
a_name##_tsd_boot(void); \
a_attr a_type * \
a_name##tsd_get(void); \
a_name##_tsd_get(void); \
a_attr void \
a_name##tsd_set(a_type *val);
a_name##_tsd_set(a_type *val);
/* malloc_tsd_externs(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_externs(a_name, a_type) \
extern __thread a_type a_name##tsd_tls; \
extern __thread bool a_name##tsd_initialized; \
extern bool a_name##tsd_booted;
extern __thread a_type a_name##_tls; \
extern __thread bool a_name##_initialized; \
extern bool a_name##_booted;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_externs(a_name, a_type) \
extern __thread a_type a_name##tsd_tls; \
extern pthread_key_t a_name##tsd_tsd; \
extern bool a_name##tsd_booted;
extern __thread a_type a_name##_tls; \
extern pthread_key_t a_name##_tsd; \
extern bool a_name##_booted;
#elif (defined(_WIN32))
#define malloc_tsd_externs(a_name, a_type) \
extern DWORD a_name##tsd_tsd; \
extern a_name##tsd_wrapper_t a_name##tsd_boot_wrapper; \
extern bool a_name##tsd_booted;
extern DWORD a_name##_tsd; \
extern bool a_name##_booted;
#else
#define malloc_tsd_externs(a_name, a_type) \
extern pthread_key_t a_name##tsd_tsd; \
extern tsd_init_head_t a_name##tsd_init_head; \
extern a_name##tsd_wrapper_t a_name##tsd_boot_wrapper; \
extern bool a_name##tsd_booted;
extern pthread_key_t a_name##_tsd; \
extern tsd_init_head_t a_name##_tsd_init_head; \
extern bool a_name##_booted;
#endif
/* malloc_tsd_data(). */
#ifdef JEMALLOC_MALLOC_THREAD_CLEANUP
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##tsd_tls = a_initializer; \
a_name##_tls = a_initializer; \
a_attr __thread bool JEMALLOC_TLS_MODEL \
a_name##tsd_initialized = false; \
a_attr bool a_name##tsd_booted = false;
a_name##_initialized = false; \
a_attr bool a_name##_booted = false;
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr __thread a_type JEMALLOC_TLS_MODEL \
a_name##tsd_tls = a_initializer; \
a_attr pthread_key_t a_name##tsd_tsd; \
a_attr bool a_name##tsd_booted = false;
a_name##_tls = a_initializer; \
a_attr pthread_key_t a_name##_tsd; \
a_attr bool a_name##_booted = false;
#elif (defined(_WIN32))
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr DWORD a_name##tsd_tsd; \
a_attr a_name##tsd_wrapper_t a_name##tsd_boot_wrapper = { \
false, \
a_initializer \
}; \
a_attr bool a_name##tsd_booted = false;
a_attr DWORD a_name##_tsd; \
a_attr bool a_name##_booted = false;
#else
#define malloc_tsd_data(a_attr, a_name, a_type, a_initializer) \
a_attr pthread_key_t a_name##tsd_tsd; \
a_attr tsd_init_head_t a_name##tsd_init_head = { \
a_attr pthread_key_t a_name##_tsd; \
a_attr tsd_init_head_t a_name##_tsd_init_head = { \
ql_head_initializer(blocks), \
MALLOC_MUTEX_INITIALIZER \
}; \
a_attr a_name##tsd_wrapper_t a_name##tsd_boot_wrapper = { \
false, \
a_initializer \
}; \
a_attr bool a_name##tsd_booted = false;
a_attr bool a_name##_booted = false;
#endif
/* malloc_tsd_funcs(). */
@@ -169,100 +125,75 @@ a_attr bool a_name##tsd_booted = false;
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_cleanup_wrapper(void) \
a_name##_tsd_cleanup_wrapper(void) \
{ \
\
if (a_name##tsd_initialized) { \
a_name##tsd_initialized = false; \
a_cleanup(&a_name##tsd_tls); \
if (a_name##_initialized) { \
a_name##_initialized = false; \
a_cleanup(&a_name##_tls); \
} \
return (a_name##tsd_initialized); \
return (a_name##_initialized); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
a_name##_tsd_boot(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##tsd_cleanup_wrapper); \
&a_name##_tsd_cleanup_wrapper); \
} \
a_name##tsd_booted = true; \
a_name##_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
\
/* Do nothing. */ \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
return (a_name##tsd_boot0()); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
a_name##_tsd_get(void) \
{ \
\
assert(a_name##tsd_booted); \
return (&a_name##tsd_tls); \
assert(a_name##_booted); \
return (&a_name##_tls); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
a_name##_tsd_set(a_type *val) \
{ \
\
assert(a_name##tsd_booted); \
a_name##tsd_tls = (*val); \
assert(a_name##_booted); \
a_name##_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
a_name##tsd_initialized = true; \
a_name##_initialized = true; \
}
#elif (defined(JEMALLOC_TLS))
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_boot0(void) \
a_name##_tsd_boot(void) \
{ \
\
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_key_create(&a_name##tsd_tsd, a_cleanup) != \
0) \
if (pthread_key_create(&a_name##_tsd, a_cleanup) != 0) \
return (true); \
} \
a_name##tsd_booted = true; \
a_name##_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
\
/* Do nothing. */ \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
return (a_name##tsd_boot0()); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
a_name##_tsd_get(void) \
{ \
\
assert(a_name##tsd_booted); \
return (&a_name##tsd_tls); \
assert(a_name##_booted); \
return (&a_name##_tls); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
a_name##_tsd_set(a_type *val) \
{ \
\
assert(a_name##tsd_booted); \
a_name##tsd_tls = (*val); \
assert(a_name##_booted); \
a_name##_tls = (*val); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
if (pthread_setspecific(a_name##tsd_tsd, \
(void *)(&a_name##tsd_tls))) { \
if (pthread_setspecific(a_name##_tsd, \
(void *)(&a_name##_tls))) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
if (opt_abort) \
@@ -273,21 +204,27 @@ a_name##tsd_set(a_type *val) \
#elif (defined(_WIN32))
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Data structure. */ \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##_tsd_wrapper_t; \
/* Initialization/cleanup. */ \
a_attr bool \
a_name##tsd_cleanup_wrapper(void) \
a_name##_tsd_cleanup_wrapper(void) \
{ \
DWORD error = GetLastError(); \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
TlsGetValue(a_name##tsd_tsd); \
SetLastError(error); \
a_name##_tsd_wrapper_t *wrapper; \
\
wrapper = (a_name##_tsd_wrapper_t *) TlsGetValue(a_name##_tsd); \
if (wrapper == NULL) \
return (false); \
if (a_cleanup != malloc_tsd_no_cleanup && \
wrapper->initialized) { \
a_type val = wrapper->val; \
a_type tsd_static_data = a_initializer; \
wrapper->initialized = false; \
a_cleanup(&wrapper->val); \
wrapper->val = tsd_static_data; \
a_cleanup(&val); \
if (wrapper->initialized) { \
/* Trigger another cleanup round. */ \
return (true); \
@@ -296,95 +233,63 @@ a_name##tsd_cleanup_wrapper(void) \
malloc_tsd_dalloc(wrapper); \
return (false); \
} \
a_attr void \
a_name##tsd_wrapper_set(a_name##tsd_wrapper_t *wrapper) \
a_attr bool \
a_name##_tsd_boot(void) \
{ \
\
if (!TlsSetValue(a_name##tsd_tsd, (void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
a_name##_tsd = TlsAlloc(); \
if (a_name##_tsd == TLS_OUT_OF_INDEXES) \
return (true); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##_tsd_cleanup_wrapper); \
} \
a_name##_booted = true; \
return (false); \
} \
a_attr a_name##tsd_wrapper_t * \
a_name##tsd_wrapper_get(void) \
/* Get/set. */ \
a_attr a_name##_tsd_wrapper_t * \
a_name##_tsd_get_wrapper(void) \
{ \
DWORD error = GetLastError(); \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
TlsGetValue(a_name##tsd_tsd); \
SetLastError(error); \
a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *) \
TlsGetValue(a_name##_tsd); \
\
if (unlikely(wrapper == NULL)) { \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
wrapper = (a_name##_tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##_tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} else { \
static a_type tsd_static_data = a_initializer; \
wrapper->initialized = false; \
wrapper->val = a_initializer; \
wrapper->val = tsd_static_data; \
} \
if (!TlsSetValue(a_name##_tsd, (void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
} \
a_name##tsd_wrapper_set(wrapper); \
} \
return (wrapper); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
a_name##tsd_tsd = TlsAlloc(); \
if (a_name##tsd_tsd == TLS_OUT_OF_INDEXES) \
return (true); \
if (a_cleanup != malloc_tsd_no_cleanup) { \
malloc_tsd_cleanup_register( \
&a_name##tsd_cleanup_wrapper); \
} \
a_name##tsd_wrapper_set(&a_name##tsd_boot_wrapper); \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} \
memcpy(wrapper, &a_name##tsd_boot_wrapper, \
sizeof(a_name##tsd_wrapper_t)); \
a_name##tsd_wrapper_set(wrapper); \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
if (a_name##tsd_boot0()) \
return (true); \
a_name##tsd_boot1(); \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
a_name##_tsd_get(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
return (&wrapper->val); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
a_name##_tsd_set(a_type *val) \
{ \
a_name##tsd_wrapper_t *wrapper; \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
wrapper->val = *(val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
wrapper->initialized = true; \
@@ -392,11 +297,16 @@ a_name##tsd_set(a_type *val) \
#else
#define malloc_tsd_funcs(a_attr, a_name, a_type, a_initializer, \
a_cleanup) \
/* Data structure. */ \
typedef struct { \
bool initialized; \
a_type val; \
} a_name##_tsd_wrapper_t; \
/* Initialization/cleanup. */ \
a_attr void \
a_name##tsd_cleanup_wrapper(void *arg) \
a_name##_tsd_cleanup_wrapper(void *arg) \
{ \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *)arg; \
a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *)arg;\
\
if (a_cleanup != malloc_tsd_no_cleanup && \
wrapper->initialized) { \
@@ -404,7 +314,7 @@ a_name##tsd_cleanup_wrapper(void *arg) \
a_cleanup(&wrapper->val); \
if (wrapper->initialized) { \
/* Trigger another cleanup round. */ \
if (pthread_setspecific(a_name##tsd_tsd, \
if (pthread_setspecific(a_name##_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error" \
" setting TSD for "#a_name"\n"); \
@@ -416,97 +326,67 @@ a_name##tsd_cleanup_wrapper(void *arg) \
} \
malloc_tsd_dalloc(wrapper); \
} \
a_attr void \
a_name##tsd_wrapper_set(a_name##tsd_wrapper_t *wrapper) \
a_attr bool \
a_name##_tsd_boot(void) \
{ \
\
if (pthread_setspecific(a_name##tsd_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
} \
if (pthread_key_create(&a_name##_tsd, \
a_name##_tsd_cleanup_wrapper) != 0) \
return (true); \
a_name##_booted = true; \
return (false); \
} \
a_attr a_name##tsd_wrapper_t * \
a_name##tsd_wrapper_get(void) \
/* Get/set. */ \
a_attr a_name##_tsd_wrapper_t * \
a_name##_tsd_get_wrapper(void) \
{ \
a_name##tsd_wrapper_t *wrapper = (a_name##tsd_wrapper_t *) \
pthread_getspecific(a_name##tsd_tsd); \
a_name##_tsd_wrapper_t *wrapper = (a_name##_tsd_wrapper_t *) \
pthread_getspecific(a_name##_tsd); \
\
if (unlikely(wrapper == NULL)) { \
if (wrapper == NULL) { \
tsd_init_block_t block; \
wrapper = tsd_init_check_recursion( \
&a_name##tsd_init_head, &block); \
&a_name##_tsd_init_head, &block); \
if (wrapper) \
return (wrapper); \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
wrapper = (a_name##_tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##_tsd_wrapper_t)); \
block.data = wrapper; \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} else { \
static a_type tsd_static_data = a_initializer; \
wrapper->initialized = false; \
wrapper->val = a_initializer; \
wrapper->val = tsd_static_data; \
} \
a_name##tsd_wrapper_set(wrapper); \
tsd_init_finish(&a_name##tsd_init_head, &block); \
if (pthread_setspecific(a_name##_tsd, \
(void *)wrapper)) { \
malloc_write("<jemalloc>: Error setting" \
" TSD for "#a_name"\n"); \
abort(); \
} \
tsd_init_finish(&a_name##_tsd_init_head, &block); \
} \
return (wrapper); \
} \
a_attr bool \
a_name##tsd_boot0(void) \
{ \
\
if (pthread_key_create(&a_name##tsd_tsd, \
a_name##tsd_cleanup_wrapper) != 0) \
return (true); \
a_name##tsd_wrapper_set(&a_name##tsd_boot_wrapper); \
a_name##tsd_booted = true; \
return (false); \
} \
a_attr void \
a_name##tsd_boot1(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
wrapper = (a_name##tsd_wrapper_t *) \
malloc_tsd_malloc(sizeof(a_name##tsd_wrapper_t)); \
if (wrapper == NULL) { \
malloc_write("<jemalloc>: Error allocating" \
" TSD for "#a_name"\n"); \
abort(); \
} \
memcpy(wrapper, &a_name##tsd_boot_wrapper, \
sizeof(a_name##tsd_wrapper_t)); \
a_name##tsd_wrapper_set(wrapper); \
} \
a_attr bool \
a_name##tsd_boot(void) \
{ \
\
if (a_name##tsd_boot0()) \
return (true); \
a_name##tsd_boot1(); \
return (false); \
} \
/* Get/set. */ \
a_attr a_type * \
a_name##tsd_get(void) \
a_name##_tsd_get(void) \
{ \
a_name##tsd_wrapper_t *wrapper; \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
return (&wrapper->val); \
} \
a_attr void \
a_name##tsd_set(a_type *val) \
a_name##_tsd_set(a_type *val) \
{ \
a_name##tsd_wrapper_t *wrapper; \
a_name##_tsd_wrapper_t *wrapper; \
\
assert(a_name##tsd_booted); \
wrapper = a_name##tsd_wrapper_get(); \
assert(a_name##_booted); \
wrapper = a_name##_tsd_get_wrapper(); \
wrapper->val = *(val); \
if (a_cleanup != malloc_tsd_no_cleanup) \
wrapper->initialized = true; \
@@ -530,136 +410,25 @@ struct tsd_init_head_s {
};
#endif
#define MALLOC_TSD \
/* O(name, type) */ \
O(tcache, tcache_t *) \
O(thread_allocated, uint64_t) \
O(thread_deallocated, uint64_t) \
O(prof_tdata, prof_tdata_t *) \
O(arena, arena_t *) \
O(arenas_tdata, arena_tdata_t *) \
O(narenas_tdata, unsigned) \
O(arenas_tdata_bypass, bool) \
O(tcache_enabled, tcache_enabled_t) \
O(quarantine, quarantine_t *) \
#define TSD_INITIALIZER { \
tsd_state_uninitialized, \
NULL, \
0, \
0, \
NULL, \
NULL, \
NULL, \
0, \
false, \
tcache_enabled_default, \
NULL \
}
struct tsd_s {
tsd_state_t state;
#define O(n, t) \
t n;
MALLOC_TSD
#undef O
};
static const tsd_t tsd_initializer = TSD_INITIALIZER;
malloc_tsd_types(, tsd_t)
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
void *malloc_tsd_malloc(size_t size);
void malloc_tsd_dalloc(void *wrapper);
void malloc_tsd_no_cleanup(void *arg);
void malloc_tsd_no_cleanup(void *);
void malloc_tsd_cleanup_register(bool (*f)(void));
bool malloc_tsd_boot0(void);
void malloc_tsd_boot1(void);
void malloc_tsd_boot(void);
#if (!defined(JEMALLOC_MALLOC_THREAD_CLEANUP) && !defined(JEMALLOC_TLS) && \
!defined(_WIN32))
void *tsd_init_check_recursion(tsd_init_head_t *head,
tsd_init_block_t *block);
void tsd_init_finish(tsd_init_head_t *head, tsd_init_block_t *block);
#endif
void tsd_cleanup(void *arg);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
malloc_tsd_protos(JEMALLOC_ATTR(unused), , tsd_t)
tsd_t *tsd_fetch(void);
bool tsd_nominal(tsd_t *tsd);
#define O(n, t) \
t *tsd_##n##p_get(tsd_t *tsd); \
t tsd_##n##_get(tsd_t *tsd); \
void tsd_##n##_set(tsd_t *tsd, t n);
MALLOC_TSD
#undef O
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_TSD_C_))
malloc_tsd_externs(, tsd_t)
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, , tsd_t, tsd_initializer, tsd_cleanup)
JEMALLOC_ALWAYS_INLINE tsd_t *
tsd_fetch(void)
{
tsd_t *tsd = tsd_get();
if (unlikely(tsd->state != tsd_state_nominal)) {
if (tsd->state == tsd_state_uninitialized) {
tsd->state = tsd_state_nominal;
/* Trigger cleanup handler registration. */
tsd_set(tsd);
} else if (tsd->state == tsd_state_purgatory) {
tsd->state = tsd_state_reincarnated;
tsd_set(tsd);
} else
assert(tsd->state == tsd_state_reincarnated);
}
return (tsd);
}
JEMALLOC_INLINE bool
tsd_nominal(tsd_t *tsd)
{
return (tsd->state == tsd_state_nominal);
}
#define O(n, t) \
JEMALLOC_ALWAYS_INLINE t * \
tsd_##n##p_get(tsd_t *tsd) \
{ \
\
return (&tsd->n); \
} \
\
JEMALLOC_ALWAYS_INLINE t \
tsd_##n##_get(tsd_t *tsd) \
{ \
\
return (*tsd_##n##p_get(tsd)); \
} \
\
JEMALLOC_ALWAYS_INLINE void \
tsd_##n##_set(tsd_t *tsd, t n) \
{ \
\
assert(tsd->state == tsd_state_nominal); \
tsd->n = n; \
}
MALLOC_TSD
#undef O
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -1,36 +1,6 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#ifdef _WIN32
# ifdef _WIN64
# define FMT64_PREFIX "ll"
# define FMTPTR_PREFIX "ll"
# else
# define FMT64_PREFIX "ll"
# define FMTPTR_PREFIX ""
# endif
# define FMTd32 "d"
# define FMTu32 "u"
# define FMTx32 "x"
# define FMTd64 FMT64_PREFIX "d"
# define FMTu64 FMT64_PREFIX "u"
# define FMTx64 FMT64_PREFIX "x"
# define FMTdPTR FMTPTR_PREFIX "d"
# define FMTuPTR FMTPTR_PREFIX "u"
# define FMTxPTR FMTPTR_PREFIX "x"
#else
# include <inttypes.h>
# define FMTd32 PRId32
# define FMTu32 PRIu32
# define FMTx32 PRIx32
# define FMTd64 PRId64
# define FMTu64 PRIu64
# define FMTx64 PRIx64
# define FMTdPTR PRIdPTR
# define FMTuPTR PRIuPTR
# define FMTxPTR PRIxPTR
#endif
/* Size of stack-allocated buffer passed to buferror(). */
#define BUFERROR_BUF 64
@@ -52,40 +22,57 @@
* uninitialized.
*/
#ifdef JEMALLOC_CC_SILENCE
# define JEMALLOC_CC_SILENCE_INIT(v) = v
# define JEMALLOC_CC_SILENCE_INIT(v) = v
#else
# define JEMALLOC_CC_SILENCE_INIT(v)
# define JEMALLOC_CC_SILENCE_INIT(v)
#endif
#define JEMALLOC_GNUC_PREREQ(major, minor) \
(!defined(__clang__) && \
(__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))))
#ifndef __has_builtin
# define __has_builtin(builtin) (0)
#endif
#define JEMALLOC_CLANG_HAS_BUILTIN(builtin) \
(defined(__clang__) && __has_builtin(builtin))
#ifdef __GNUC__
# define likely(x) __builtin_expect(!!(x), 1)
# define unlikely(x) __builtin_expect(!!(x), 0)
# if JEMALLOC_GNUC_PREREQ(4, 6) || \
JEMALLOC_CLANG_HAS_BUILTIN(__builtin_unreachable)
# define unreachable() __builtin_unreachable()
# else
# define unreachable()
# endif
#else
# define likely(x) !!(x)
# define unlikely(x) !!(x)
# define unreachable()
/*
* Define a custom assert() in order to reduce the chances of deadlock during
* assertion failure.
*/
#ifndef assert
#define assert(e) do { \
if (config_debug && !(e)) { \
malloc_printf( \
"<jemalloc>: %s:%d: Failed assertion: \"%s\"\n", \
__FILE__, __LINE__, #e); \
abort(); \
} \
} while (0)
#endif
#include "jemalloc/internal/assert.h"
#ifndef not_reached
#define not_reached() do { \
if (config_debug) { \
malloc_printf( \
"<jemalloc>: %s:%d: Unreachable code reached\n", \
__FILE__, __LINE__); \
abort(); \
} \
} while (0)
#endif
#ifndef not_implemented
#define not_implemented() do { \
if (config_debug) { \
malloc_printf("<jemalloc>: %s:%d: Not implemented\n", \
__FILE__, __LINE__); \
abort(); \
} \
} while (0)
#endif
#ifndef assert_not_implemented
#define assert_not_implemented(e) do { \
if (config_debug && !(e)) \
not_implemented(); \
} while (0)
#endif
/* Use to assert a particular configuration, e.g., cassert(config_debug). */
#define cassert(c) do { \
if (unlikely(!(c))) \
if ((c) == false) \
not_reached(); \
} while (0)
@@ -109,213 +96,44 @@ void malloc_write(const char *s);
int malloc_vsnprintf(char *str, size_t size, const char *format,
va_list ap);
int malloc_snprintf(char *str, size_t size, const char *format, ...)
JEMALLOC_FORMAT_PRINTF(3, 4);
JEMALLOC_ATTR(format(printf, 3, 4));
void malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque,
const char *format, va_list ap);
void malloc_cprintf(void (*write)(void *, const char *), void *cbopaque,
const char *format, ...) JEMALLOC_FORMAT_PRINTF(3, 4);
void malloc_printf(const char *format, ...) JEMALLOC_FORMAT_PRINTF(1, 2);
const char *format, ...) JEMALLOC_ATTR(format(printf, 3, 4));
void malloc_printf(const char *format, ...)
JEMALLOC_ATTR(format(printf, 1, 2));
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
unsigned ffs_llu(unsigned long long bitmap);
unsigned ffs_lu(unsigned long bitmap);
unsigned ffs_u(unsigned bitmap);
unsigned ffs_zu(size_t bitmap);
unsigned ffs_u64(uint64_t bitmap);
unsigned ffs_u32(uint32_t bitmap);
uint64_t pow2_ceil_u64(uint64_t x);
uint32_t pow2_ceil_u32(uint32_t x);
size_t pow2_ceil_zu(size_t x);
unsigned lg_floor(size_t x);
size_t pow2_ceil(size_t x);
void set_errno(int errnum);
int get_errno(void);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_UTIL_C_))
/* Sanity check. */
#if !defined(JEMALLOC_INTERNAL_FFSLL) || !defined(JEMALLOC_INTERNAL_FFSL) \
|| !defined(JEMALLOC_INTERNAL_FFS)
# error JEMALLOC_INTERNAL_FFS{,L,LL} should have been defined by configure
#endif
JEMALLOC_ALWAYS_INLINE unsigned
ffs_llu(unsigned long long bitmap)
{
return (JEMALLOC_INTERNAL_FFSLL(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_lu(unsigned long bitmap)
{
return (JEMALLOC_INTERNAL_FFSL(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u(unsigned bitmap)
{
return (JEMALLOC_INTERNAL_FFS(bitmap));
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_zu(size_t bitmap)
{
#if LG_SIZEOF_PTR == LG_SIZEOF_INT
return (ffs_u(bitmap));
#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG
return (ffs_lu(bitmap));
#elif LG_SIZEOF_PTR == LG_SIZEOF_LONG_LONG
return (ffs_llu(bitmap));
#else
#error No implementation for size_t ffs()
#endif
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u64(uint64_t bitmap)
{
#if LG_SIZEOF_LONG == 3
return (ffs_lu(bitmap));
#elif LG_SIZEOF_LONG_LONG == 3
return (ffs_llu(bitmap));
#else
#error No implementation for 64-bit ffs()
#endif
}
JEMALLOC_ALWAYS_INLINE unsigned
ffs_u32(uint32_t bitmap)
{
#if LG_SIZEOF_INT == 2
return (ffs_u(bitmap));
#else
#error No implementation for 32-bit ffs()
#endif
return (ffs_u(bitmap));
}
JEMALLOC_INLINE uint64_t
pow2_ceil_u64(uint64_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
x |= x >> 32;
x++;
return (x);
}
JEMALLOC_INLINE uint32_t
pow2_ceil_u32(uint32_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
x++;
return (x);
}
/* Compute the smallest power of 2 that is >= x. */
JEMALLOC_INLINE size_t
pow2_ceil_zu(size_t x)
pow2_ceil(size_t x)
{
x--;
x |= x >> 1;
x |= x >> 2;
x |= x >> 4;
x |= x >> 8;
x |= x >> 16;
#if (LG_SIZEOF_PTR == 3)
return (pow2_ceil_u64(x));
#else
return (pow2_ceil_u32(x));
x |= x >> 32;
#endif
}
#if (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
size_t ret;
assert(x != 0);
asm ("bsr %1, %0"
: "=r"(ret) // Outputs.
: "r"(x) // Inputs.
);
assert(ret < UINT_MAX);
return ((unsigned)ret);
}
#elif (defined(_MSC_VER))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
unsigned long ret;
assert(x != 0);
#if (LG_SIZEOF_PTR == 3)
_BitScanReverse64(&ret, x);
#elif (LG_SIZEOF_PTR == 2)
_BitScanReverse(&ret, x);
#else
# error "Unsupported type size for lg_floor()"
#endif
assert(ret < UINT_MAX);
return ((unsigned)ret);
}
#elif (defined(JEMALLOC_HAVE_BUILTIN_CLZ))
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
assert(x != 0);
#if (LG_SIZEOF_PTR == LG_SIZEOF_INT)
return (((8 << LG_SIZEOF_PTR) - 1) - __builtin_clz(x));
#elif (LG_SIZEOF_PTR == LG_SIZEOF_LONG)
return (((8 << LG_SIZEOF_PTR) - 1) - __builtin_clzl(x));
#else
# error "Unsupported type size for lg_floor()"
#endif
}
#else
JEMALLOC_INLINE unsigned
lg_floor(size_t x)
{
assert(x != 0);
x |= (x >> 1);
x |= (x >> 2);
x |= (x >> 4);
x |= (x >> 8);
x |= (x >> 16);
#if (LG_SIZEOF_PTR == 3)
x |= (x >> 32);
#endif
if (x == SIZE_T_MAX)
return ((8 << LG_SIZEOF_PTR) - 1);
x++;
return (ffs_zu(x) - 2);
return (x);
}
#endif
/* Set error code. */
/* Sets error code */
JEMALLOC_INLINE void
set_errno(int errnum)
{
@@ -327,7 +145,7 @@ set_errno(int errnum)
#endif
}
/* Get last error code. */
/* Get last error code */
JEMALLOC_INLINE int
get_errno(void)
{

View File

@@ -1,112 +0,0 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#ifdef JEMALLOC_VALGRIND
#include <valgrind/valgrind.h>
/*
* The size that is reported to Valgrind must be consistent through a chain of
* malloc..realloc..realloc calls. Request size isn't recorded anywhere in
* jemalloc, so it is critical that all callers of these macros provide usize
* rather than request size. As a result, buffer overflow detection is
* technically weakened for the standard API, though it is generally accepted
* practice to consider any extra bytes reported by malloc_usable_size() as
* usable space.
*/
#define JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(ptr, usize) do { \
if (unlikely(in_valgrind)) \
valgrind_make_mem_noaccess(ptr, usize); \
} while (0)
#define JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ptr, usize) do { \
if (unlikely(in_valgrind)) \
valgrind_make_mem_undefined(ptr, usize); \
} while (0)
#define JEMALLOC_VALGRIND_MAKE_MEM_DEFINED(ptr, usize) do { \
if (unlikely(in_valgrind)) \
valgrind_make_mem_defined(ptr, usize); \
} while (0)
/*
* The VALGRIND_MALLOCLIKE_BLOCK() and VALGRIND_RESIZEINPLACE_BLOCK() macro
* calls must be embedded in macros rather than in functions so that when
* Valgrind reports errors, there are no extra stack frames in the backtraces.
*/
#define JEMALLOC_VALGRIND_MALLOC(cond, ptr, usize, zero) do { \
if (unlikely(in_valgrind && cond)) \
VALGRIND_MALLOCLIKE_BLOCK(ptr, usize, p2rz(ptr), zero); \
} while (0)
#define JEMALLOC_VALGRIND_REALLOC(maybe_moved, ptr, usize, \
ptr_maybe_null, old_ptr, old_usize, old_rzsize, old_ptr_maybe_null, \
zero) do { \
if (unlikely(in_valgrind)) { \
size_t rzsize = p2rz(ptr); \
\
if (!maybe_moved || ptr == old_ptr) { \
VALGRIND_RESIZEINPLACE_BLOCK(ptr, old_usize, \
usize, rzsize); \
if (zero && old_usize < usize) { \
valgrind_make_mem_defined( \
(void *)((uintptr_t)ptr + \
old_usize), usize - old_usize); \
} \
} else { \
if (!old_ptr_maybe_null || old_ptr != NULL) { \
valgrind_freelike_block(old_ptr, \
old_rzsize); \
} \
if (!ptr_maybe_null || ptr != NULL) { \
size_t copy_size = (old_usize < usize) \
? old_usize : usize; \
size_t tail_size = usize - copy_size; \
VALGRIND_MALLOCLIKE_BLOCK(ptr, usize, \
rzsize, false); \
if (copy_size > 0) { \
valgrind_make_mem_defined(ptr, \
copy_size); \
} \
if (zero && tail_size > 0) { \
valgrind_make_mem_defined( \
(void *)((uintptr_t)ptr + \
copy_size), tail_size); \
} \
} \
} \
} \
} while (0)
#define JEMALLOC_VALGRIND_FREE(ptr, rzsize) do { \
if (unlikely(in_valgrind)) \
valgrind_freelike_block(ptr, rzsize); \
} while (0)
#else
#define RUNNING_ON_VALGRIND ((unsigned)0)
#define JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(ptr, usize) do {} while (0)
#define JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ptr, usize) do {} while (0)
#define JEMALLOC_VALGRIND_MAKE_MEM_DEFINED(ptr, usize) do {} while (0)
#define JEMALLOC_VALGRIND_MALLOC(cond, ptr, usize, zero) do {} while (0)
#define JEMALLOC_VALGRIND_REALLOC(maybe_moved, ptr, usize, \
ptr_maybe_null, old_ptr, old_usize, old_rzsize, old_ptr_maybe_null, \
zero) do {} while (0)
#define JEMALLOC_VALGRIND_FREE(ptr, rzsize) do {} while (0)
#endif
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#ifdef JEMALLOC_VALGRIND
void valgrind_make_mem_noaccess(void *ptr, size_t usize);
void valgrind_make_mem_undefined(void *ptr, size_t usize);
void valgrind_make_mem_defined(void *ptr, size_t usize);
void valgrind_freelike_block(void *ptr, size_t usize);
#endif
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/

View File

@@ -12,7 +12,7 @@ extern "C" {
EOF
for hdr in jemalloc_defs.h jemalloc_rename.h jemalloc_macros.h \
jemalloc_protos.h jemalloc_typedefs.h jemalloc_mangle.h ; do
jemalloc_protos.h jemalloc_mangle.h ; do
cat "${objroot}include/jemalloc/${hdr}" \
| grep -v 'Generated from .* by configure\.' \
| sed -e 's/^#define /#define /g' \
@@ -22,7 +22,7 @@ done
cat <<EOF
#ifdef __cplusplus
}
};
#endif
#endif /* JEMALLOC_H_ */
EOF

View File

@@ -1,14 +1,8 @@
/* Defined if __attribute__((...)) syntax is supported. */
#undef JEMALLOC_HAVE_ATTR
/* Defined if alloc_size attribute is supported. */
#undef JEMALLOC_HAVE_ATTR_ALLOC_SIZE
/* Defined if format(gnu_printf, ...) attribute is supported. */
#undef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF
/* Defined if format(printf, ...) attribute is supported. */
#undef JEMALLOC_HAVE_ATTR_FORMAT_PRINTF
/* Support the experimental API. */
#undef JEMALLOC_EXPERIMENTAL
/*
* Define overrides for non-standard allocator-related functions if they are
@@ -26,20 +20,5 @@
*/
#undef JEMALLOC_USABLE_SIZE_CONST
/*
* If defined, specify throw() for the public function prototypes when compiling
* with C++. The only justification for this is to match the prototypes that
* glibc defines.
*/
#undef JEMALLOC_USE_CXX_THROW
#ifdef _MSC_VER
# ifdef _WIN64
# define LG_SIZEOF_PTR_WIN 3
# else
# define LG_SIZEOF_PTR_WIN 2
# endif
#endif
/* sizeof(void *) == 2^LG_SIZEOF_PTR. */
#undef LG_SIZEOF_PTR

View File

@@ -1,6 +1,3 @@
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <limits.h>
#include <strings.h>
@@ -11,93 +8,54 @@
#define JEMALLOC_VERSION_NREV @jemalloc_version_nrev@
#define JEMALLOC_VERSION_GID "@jemalloc_version_gid@"
# define MALLOCX_LG_ALIGN(la) ((int)(la))
# define MALLOCX_LG_ALIGN(la) (la)
# if LG_SIZEOF_PTR == 2
# define MALLOCX_ALIGN(a) ((int)(ffs(a)-1))
# define MALLOCX_ALIGN(a) (ffs(a)-1)
# else
# define MALLOCX_ALIGN(a) \
((int)(((a) < (size_t)INT_MAX) ? ffs((int)(a))-1 : \
ffs((int)((a)>>32))+31))
((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31)
# endif
# define MALLOCX_ZERO ((int)0x40)
/*
* Bias tcache index bits so that 0 encodes "automatic tcache management", and 1
* encodes MALLOCX_TCACHE_NONE.
*/
# define MALLOCX_TCACHE(tc) ((int)(((tc)+2) << 8))
# define MALLOCX_TCACHE_NONE MALLOCX_TCACHE(-1)
/*
* Bias arena index bits so that 0 encodes "use an automatically chosen arena".
*/
# define MALLOCX_ARENA(a) ((int)(((a)+1) << 20))
/* Bias arena index bits so that 0 encodes "MALLOCX_ARENA() unspecified". */
# define MALLOCX_ARENA(a) ((int)(((a)+1) << 8))
#if defined(__cplusplus) && defined(JEMALLOC_USE_CXX_THROW)
# define JEMALLOC_CXX_THROW throw()
#else
# define JEMALLOC_CXX_THROW
#ifdef JEMALLOC_EXPERIMENTAL
# define ALLOCM_LG_ALIGN(la) (la)
# if LG_SIZEOF_PTR == 2
# define ALLOCM_ALIGN(a) (ffs(a)-1)
# else
# define ALLOCM_ALIGN(a) \
((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31)
# endif
# define ALLOCM_ZERO ((int)0x40)
# define ALLOCM_NO_MOVE ((int)0x80)
/* Bias arena index bits so that 0 encodes "ALLOCM_ARENA() unspecified". */
# define ALLOCM_ARENA(a) ((int)(((a)+1) << 8))
# define ALLOCM_SUCCESS 0
# define ALLOCM_ERR_OOM 1
# define ALLOCM_ERR_NOT_MOVED 2
#endif
#if _MSC_VER
# define JEMALLOC_ATTR(s)
# define JEMALLOC_ALIGNED(s) __declspec(align(s))
# define JEMALLOC_ALLOC_SIZE(s)
# define JEMALLOC_ALLOC_SIZE2(s1, s2)
# ifndef JEMALLOC_EXPORT
# ifdef DLLEXPORT
# define JEMALLOC_EXPORT __declspec(dllexport)
# else
# define JEMALLOC_EXPORT __declspec(dllimport)
# endif
# endif
# define JEMALLOC_FORMAT_PRINTF(s, i)
# define JEMALLOC_NOINLINE __declspec(noinline)
# ifdef __cplusplus
# define JEMALLOC_NOTHROW __declspec(nothrow)
# else
# define JEMALLOC_NOTHROW
# endif
# define JEMALLOC_SECTION(s) __declspec(allocate(s))
# define JEMALLOC_RESTRICT_RETURN __declspec(restrict)
# if _MSC_VER >= 1900 && !defined(__EDG__)
# define JEMALLOC_ALLOCATOR __declspec(allocator)
# else
# define JEMALLOC_ALLOCATOR
# endif
#elif defined(JEMALLOC_HAVE_ATTR)
#ifdef JEMALLOC_HAVE_ATTR
# define JEMALLOC_ATTR(s) __attribute__((s))
# define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default"))
# define JEMALLOC_ALIGNED(s) JEMALLOC_ATTR(aligned(s))
# ifdef JEMALLOC_HAVE_ATTR_ALLOC_SIZE
# define JEMALLOC_ALLOC_SIZE(s) JEMALLOC_ATTR(alloc_size(s))
# define JEMALLOC_ALLOC_SIZE2(s1, s2) JEMALLOC_ATTR(alloc_size(s1, s2))
# else
# define JEMALLOC_ALLOC_SIZE(s)
# define JEMALLOC_ALLOC_SIZE2(s1, s2)
# endif
# ifndef JEMALLOC_EXPORT
# define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default"))
# endif
# ifdef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF
# define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(gnu_printf, s, i))
# elif defined(JEMALLOC_HAVE_ATTR_FORMAT_PRINTF)
# define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(printf, s, i))
# else
# define JEMALLOC_FORMAT_PRINTF(s, i)
# endif
# define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline)
# define JEMALLOC_NOTHROW JEMALLOC_ATTR(nothrow)
# define JEMALLOC_SECTION(s) JEMALLOC_ATTR(section(s))
# define JEMALLOC_RESTRICT_RETURN
# define JEMALLOC_ALLOCATOR
# define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline)
#elif _MSC_VER
# define JEMALLOC_ATTR(s)
# ifdef DLLEXPORT
# define JEMALLOC_EXPORT __declspec(dllexport)
# else
# define JEMALLOC_EXPORT __declspec(dllimport)
# endif
# define JEMALLOC_ALIGNED(s) __declspec(align(s))
# define JEMALLOC_SECTION(s) __declspec(allocate(s))
# define JEMALLOC_NOINLINE __declspec(noinline)
#else
# define JEMALLOC_ATTR(s)
# define JEMALLOC_ALIGNED(s)
# define JEMALLOC_ALLOC_SIZE(s)
# define JEMALLOC_ALLOC_SIZE2(s1, s2)
# define JEMALLOC_EXPORT
# define JEMALLOC_FORMAT_PRINTF(s, i)
# define JEMALLOC_NOINLINE
# define JEMALLOC_NOTHROW
# define JEMALLOC_ALIGNED(s)
# define JEMALLOC_SECTION(s)
# define JEMALLOC_RESTRICT_RETURN
# define JEMALLOC_ALLOCATOR
# define JEMALLOC_NOINLINE
#endif

View File

@@ -7,60 +7,52 @@ extern JEMALLOC_EXPORT const char *@je_@malloc_conf;
extern JEMALLOC_EXPORT void (*@je_@malloc_message)(void *cbopaque,
const char *s);
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@malloc(size_t size)
JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1);
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@calloc(size_t num, size_t size)
JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE2(1, 2);
JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@posix_memalign(void **memptr,
size_t alignment, size_t size) JEMALLOC_CXX_THROW JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@aligned_alloc(size_t alignment,
size_t size) JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc)
JEMALLOC_ALLOC_SIZE(2);
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@realloc(void *ptr, size_t size)
JEMALLOC_CXX_THROW JEMALLOC_ALLOC_SIZE(2);
JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@free(void *ptr)
JEMALLOC_CXX_THROW;
JEMALLOC_EXPORT void *@je_@malloc(size_t size) JEMALLOC_ATTR(malloc);
JEMALLOC_EXPORT void *@je_@calloc(size_t num, size_t size)
JEMALLOC_ATTR(malloc);
JEMALLOC_EXPORT int @je_@posix_memalign(void **memptr, size_t alignment,
size_t size) JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT void *@je_@aligned_alloc(size_t alignment, size_t size)
JEMALLOC_ATTR(malloc);
JEMALLOC_EXPORT void *@je_@realloc(void *ptr, size_t size);
JEMALLOC_EXPORT void @je_@free(void *ptr);
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@mallocx(size_t size, int flags)
JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1);
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@rallocx(void *ptr, size_t size,
int flags) JEMALLOC_ALLOC_SIZE(2);
JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@xallocx(void *ptr, size_t size,
size_t extra, int flags);
JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@sallocx(const void *ptr,
int flags) JEMALLOC_ATTR(pure);
JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@dallocx(void *ptr, int flags);
JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@sdallocx(void *ptr, size_t size,
JEMALLOC_EXPORT void *@je_@mallocx(size_t size, int flags);
JEMALLOC_EXPORT void *@je_@rallocx(void *ptr, size_t size, int flags);
JEMALLOC_EXPORT size_t @je_@xallocx(void *ptr, size_t size, size_t extra,
int flags);
JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@nallocx(size_t size, int flags)
JEMALLOC_ATTR(pure);
JEMALLOC_EXPORT size_t @je_@sallocx(const void *ptr, int flags);
JEMALLOC_EXPORT void @je_@dallocx(void *ptr, int flags);
JEMALLOC_EXPORT size_t @je_@nallocx(size_t size, int flags);
JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctl(const char *name,
JEMALLOC_EXPORT int @je_@mallctl(const char *name, void *oldp,
size_t *oldlenp, void *newp, size_t newlen);
JEMALLOC_EXPORT int @je_@mallctlnametomib(const char *name, size_t *mibp,
size_t *miblenp);
JEMALLOC_EXPORT int @je_@mallctlbymib(const size_t *mib, size_t miblen,
void *oldp, size_t *oldlenp, void *newp, size_t newlen);
JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctlnametomib(const char *name,
size_t *mibp, size_t *miblenp);
JEMALLOC_EXPORT int JEMALLOC_NOTHROW @je_@mallctlbymib(const size_t *mib,
size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen);
JEMALLOC_EXPORT void JEMALLOC_NOTHROW @je_@malloc_stats_print(
void (*write_cb)(void *, const char *), void *@je_@cbopaque,
const char *opts);
JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW @je_@malloc_usable_size(
JEMALLOC_USABLE_SIZE_CONST void *ptr) JEMALLOC_CXX_THROW;
JEMALLOC_EXPORT void @je_@malloc_stats_print(void (*write_cb)(void *,
const char *), void *@je_@cbopaque, const char *opts);
JEMALLOC_EXPORT size_t @je_@malloc_usable_size(
JEMALLOC_USABLE_SIZE_CONST void *ptr);
#ifdef JEMALLOC_OVERRIDE_MEMALIGN
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@memalign(size_t alignment, size_t size)
JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc);
JEMALLOC_EXPORT void * @je_@memalign(size_t alignment, size_t size)
JEMALLOC_ATTR(malloc);
#endif
#ifdef JEMALLOC_OVERRIDE_VALLOC
JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN
void JEMALLOC_NOTHROW *@je_@valloc(size_t size) JEMALLOC_CXX_THROW
JEMALLOC_ATTR(malloc);
JEMALLOC_EXPORT void * @je_@valloc(size_t size) JEMALLOC_ATTR(malloc);
#endif
#ifdef JEMALLOC_EXPERIMENTAL
JEMALLOC_EXPORT int @je_@allocm(void **ptr, size_t *rsize, size_t size,
int flags) JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT int @je_@rallocm(void **ptr, size_t *rsize, size_t size,
size_t extra, int flags) JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT int @je_@sallocm(const void *ptr, size_t *rsize, int flags)
JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT int @je_@dallocm(void *ptr, int flags)
JEMALLOC_ATTR(nonnull(1));
JEMALLOC_EXPORT int @je_@nallocm(size_t *rsize, size_t size, int flags);
#endif

View File

@@ -1,57 +0,0 @@
/*
* void *
* chunk_alloc(void *new_addr, size_t size, size_t alignment, bool *zero,
* bool *commit, unsigned arena_ind);
*/
typedef void *(chunk_alloc_t)(void *, size_t, size_t, bool *, bool *, unsigned);
/*
* bool
* chunk_dalloc(void *chunk, size_t size, bool committed, unsigned arena_ind);
*/
typedef bool (chunk_dalloc_t)(void *, size_t, bool, unsigned);
/*
* bool
* chunk_commit(void *chunk, size_t size, size_t offset, size_t length,
* unsigned arena_ind);
*/
typedef bool (chunk_commit_t)(void *, size_t, size_t, size_t, unsigned);
/*
* bool
* chunk_decommit(void *chunk, size_t size, size_t offset, size_t length,
* unsigned arena_ind);
*/
typedef bool (chunk_decommit_t)(void *, size_t, size_t, size_t, unsigned);
/*
* bool
* chunk_purge(void *chunk, size_t size, size_t offset, size_t length,
* unsigned arena_ind);
*/
typedef bool (chunk_purge_t)(void *, size_t, size_t, size_t, unsigned);
/*
* bool
* chunk_split(void *chunk, size_t size, size_t size_a, size_t size_b,
* bool committed, unsigned arena_ind);
*/
typedef bool (chunk_split_t)(void *, size_t, size_t, size_t, bool, unsigned);
/*
* bool
* chunk_merge(void *chunk_a, size_t size_a, void *chunk_b, size_t size_b,
* bool committed, unsigned arena_ind);
*/
typedef bool (chunk_merge_t)(void *, size_t, void *, size_t, bool, unsigned);
typedef struct {
chunk_alloc_t *alloc;
chunk_dalloc_t *dalloc;
chunk_commit_t *commit;
chunk_decommit_t *decommit;
chunk_purge_t *purge;
chunk_split_t *split;
chunk_merge_t *merge;
} chunk_hooks_t;

View File

@@ -0,0 +1,313 @@
// ISO C9x compliant inttypes.h for Microsoft Visual Studio
// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
//
// Copyright (c) 2006 Alexander Chemeris
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. The name of the author may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _MSC_VER // [
#error "Use this header only with Microsoft Visual C++ compilers!"
#endif // _MSC_VER ]
#ifndef _MSC_INTTYPES_H_ // [
#define _MSC_INTTYPES_H_
#if _MSC_VER > 1000
#pragma once
#endif
#include "stdint.h"
// 7.8 Format conversion of integer types
typedef struct {
intmax_t quot;
intmax_t rem;
} imaxdiv_t;
// 7.8.1 Macros for format specifiers
#if !defined(__cplusplus) || defined(__STDC_FORMAT_MACROS) // [ See footnote 185 at page 198
#ifdef _WIN64
# define __PRI64_PREFIX "l"
# define __PRIPTR_PREFIX "l"
#else
# define __PRI64_PREFIX "ll"
# define __PRIPTR_PREFIX
#endif
// The fprintf macros for signed integers are:
#define PRId8 "d"
#define PRIi8 "i"
#define PRIdLEAST8 "d"
#define PRIiLEAST8 "i"
#define PRIdFAST8 "d"
#define PRIiFAST8 "i"
#define PRId16 "hd"
#define PRIi16 "hi"
#define PRIdLEAST16 "hd"
#define PRIiLEAST16 "hi"
#define PRIdFAST16 "hd"
#define PRIiFAST16 "hi"
#define PRId32 "d"
#define PRIi32 "i"
#define PRIdLEAST32 "d"
#define PRIiLEAST32 "i"
#define PRIdFAST32 "d"
#define PRIiFAST32 "i"
#define PRId64 __PRI64_PREFIX "d"
#define PRIi64 __PRI64_PREFIX "i"
#define PRIdLEAST64 __PRI64_PREFIX "d"
#define PRIiLEAST64 __PRI64_PREFIX "i"
#define PRIdFAST64 __PRI64_PREFIX "d"
#define PRIiFAST64 __PRI64_PREFIX "i"
#define PRIdMAX __PRI64_PREFIX "d"
#define PRIiMAX __PRI64_PREFIX "i"
#define PRIdPTR __PRIPTR_PREFIX "d"
#define PRIiPTR __PRIPTR_PREFIX "i"
// The fprintf macros for unsigned integers are:
#define PRIo8 "o"
#define PRIu8 "u"
#define PRIx8 "x"
#define PRIX8 "X"
#define PRIoLEAST8 "o"
#define PRIuLEAST8 "u"
#define PRIxLEAST8 "x"
#define PRIXLEAST8 "X"
#define PRIoFAST8 "o"
#define PRIuFAST8 "u"
#define PRIxFAST8 "x"
#define PRIXFAST8 "X"
#define PRIo16 "ho"
#define PRIu16 "hu"
#define PRIx16 "hx"
#define PRIX16 "hX"
#define PRIoLEAST16 "ho"
#define PRIuLEAST16 "hu"
#define PRIxLEAST16 "hx"
#define PRIXLEAST16 "hX"
#define PRIoFAST16 "ho"
#define PRIuFAST16 "hu"
#define PRIxFAST16 "hx"
#define PRIXFAST16 "hX"
#define PRIo32 "o"
#define PRIu32 "u"
#define PRIx32 "x"
#define PRIX32 "X"
#define PRIoLEAST32 "o"
#define PRIuLEAST32 "u"
#define PRIxLEAST32 "x"
#define PRIXLEAST32 "X"
#define PRIoFAST32 "o"
#define PRIuFAST32 "u"
#define PRIxFAST32 "x"
#define PRIXFAST32 "X"
#define PRIo64 __PRI64_PREFIX "o"
#define PRIu64 __PRI64_PREFIX "u"
#define PRIx64 __PRI64_PREFIX "x"
#define PRIX64 __PRI64_PREFIX "X"
#define PRIoLEAST64 __PRI64_PREFIX "o"
#define PRIuLEAST64 __PRI64_PREFIX "u"
#define PRIxLEAST64 __PRI64_PREFIX "x"
#define PRIXLEAST64 __PRI64_PREFIX "X"
#define PRIoFAST64 __PRI64_PREFIX "o"
#define PRIuFAST64 __PRI64_PREFIX "u"
#define PRIxFAST64 __PRI64_PREFIX "x"
#define PRIXFAST64 __PRI64_PREFIX "X"
#define PRIoMAX __PRI64_PREFIX "o"
#define PRIuMAX __PRI64_PREFIX "u"
#define PRIxMAX __PRI64_PREFIX "x"
#define PRIXMAX __PRI64_PREFIX "X"
#define PRIoPTR __PRIPTR_PREFIX "o"
#define PRIuPTR __PRIPTR_PREFIX "u"
#define PRIxPTR __PRIPTR_PREFIX "x"
#define PRIXPTR __PRIPTR_PREFIX "X"
// The fscanf macros for signed integers are:
#define SCNd8 "d"
#define SCNi8 "i"
#define SCNdLEAST8 "d"
#define SCNiLEAST8 "i"
#define SCNdFAST8 "d"
#define SCNiFAST8 "i"
#define SCNd16 "hd"
#define SCNi16 "hi"
#define SCNdLEAST16 "hd"
#define SCNiLEAST16 "hi"
#define SCNdFAST16 "hd"
#define SCNiFAST16 "hi"
#define SCNd32 "ld"
#define SCNi32 "li"
#define SCNdLEAST32 "ld"
#define SCNiLEAST32 "li"
#define SCNdFAST32 "ld"
#define SCNiFAST32 "li"
#define SCNd64 "I64d"
#define SCNi64 "I64i"
#define SCNdLEAST64 "I64d"
#define SCNiLEAST64 "I64i"
#define SCNdFAST64 "I64d"
#define SCNiFAST64 "I64i"
#define SCNdMAX "I64d"
#define SCNiMAX "I64i"
#ifdef _WIN64 // [
# define SCNdPTR "I64d"
# define SCNiPTR "I64i"
#else // _WIN64 ][
# define SCNdPTR "ld"
# define SCNiPTR "li"
#endif // _WIN64 ]
// The fscanf macros for unsigned integers are:
#define SCNo8 "o"
#define SCNu8 "u"
#define SCNx8 "x"
#define SCNX8 "X"
#define SCNoLEAST8 "o"
#define SCNuLEAST8 "u"
#define SCNxLEAST8 "x"
#define SCNXLEAST8 "X"
#define SCNoFAST8 "o"
#define SCNuFAST8 "u"
#define SCNxFAST8 "x"
#define SCNXFAST8 "X"
#define SCNo16 "ho"
#define SCNu16 "hu"
#define SCNx16 "hx"
#define SCNX16 "hX"
#define SCNoLEAST16 "ho"
#define SCNuLEAST16 "hu"
#define SCNxLEAST16 "hx"
#define SCNXLEAST16 "hX"
#define SCNoFAST16 "ho"
#define SCNuFAST16 "hu"
#define SCNxFAST16 "hx"
#define SCNXFAST16 "hX"
#define SCNo32 "lo"
#define SCNu32 "lu"
#define SCNx32 "lx"
#define SCNX32 "lX"
#define SCNoLEAST32 "lo"
#define SCNuLEAST32 "lu"
#define SCNxLEAST32 "lx"
#define SCNXLEAST32 "lX"
#define SCNoFAST32 "lo"
#define SCNuFAST32 "lu"
#define SCNxFAST32 "lx"
#define SCNXFAST32 "lX"
#define SCNo64 "I64o"
#define SCNu64 "I64u"
#define SCNx64 "I64x"
#define SCNX64 "I64X"
#define SCNoLEAST64 "I64o"
#define SCNuLEAST64 "I64u"
#define SCNxLEAST64 "I64x"
#define SCNXLEAST64 "I64X"
#define SCNoFAST64 "I64o"
#define SCNuFAST64 "I64u"
#define SCNxFAST64 "I64x"
#define SCNXFAST64 "I64X"
#define SCNoMAX "I64o"
#define SCNuMAX "I64u"
#define SCNxMAX "I64x"
#define SCNXMAX "I64X"
#ifdef _WIN64 // [
# define SCNoPTR "I64o"
# define SCNuPTR "I64u"
# define SCNxPTR "I64x"
# define SCNXPTR "I64X"
#else // _WIN64 ][
# define SCNoPTR "lo"
# define SCNuPTR "lu"
# define SCNxPTR "lx"
# define SCNXPTR "lX"
#endif // _WIN64 ]
#endif // __STDC_FORMAT_MACROS ]
// 7.8.2 Functions for greatest-width integer types
// 7.8.2.1 The imaxabs function
#define imaxabs _abs64
// 7.8.2.2 The imaxdiv function
// This is modified version of div() function from Microsoft's div.c found
// in %MSVC.NET%\crt\src\div.c
#ifdef STATIC_IMAXDIV // [
static
#else // STATIC_IMAXDIV ][
_inline
#endif // STATIC_IMAXDIV ]
imaxdiv_t __cdecl imaxdiv(intmax_t numer, intmax_t denom)
{
imaxdiv_t result;
result.quot = numer / denom;
result.rem = numer % denom;
if (numer < 0 && result.rem > 0) {
// did division wrong; must fix up
++result.quot;
result.rem -= denom;
}
return result;
}
// 7.8.2.3 The strtoimax and strtoumax functions
#define strtoimax _strtoi64
#define strtoumax _strtoui64
// 7.8.2.4 The wcstoimax and wcstoumax functions
#define wcstoimax _wcstoi64
#define wcstoumax _wcstoui64
#endif // _MSC_INTTYPES_H_ ]

View File

@@ -5,11 +5,7 @@
/* MSVC doesn't define _Bool or bool in C, but does have BOOL */
/* Note this doesn't pass autoconf's test because (bool) 0.5 != true */
/* Clang-cl uses MSVC headers, so needs msvc_compat, but has _Bool as
* a built-in type. */
#ifndef __clang__
typedef BOOL _Bool;
#endif
#define bool _Bool
#define true 1

View File

@@ -3,9 +3,8 @@
/* MSVC doesn't define ffs/ffsl. This dummy strings.h header is provided
* for both */
#ifdef _MSC_VER
# include <intrin.h>
# pragma intrinsic(_BitScanForward)
#include <intrin.h>
#pragma intrinsic(_BitScanForward)
static __forceinline int ffsl(long x)
{
unsigned long i;
@@ -21,39 +20,4 @@ static __forceinline int ffs(int x)
return (ffsl(x));
}
# ifdef _M_X64
# pragma intrinsic(_BitScanForward64)
# endif
static __forceinline int ffsll(unsigned __int64 x)
{
unsigned long i;
#ifdef _M_X64
if (_BitScanForward64(&i, x))
return (i + 1);
return (0);
#else
// Fallback for 32-bit build where 64-bit version not available
// assuming little endian
union {
unsigned __int64 ll;
unsigned long l[2];
} s;
s.ll = x;
if (_BitScanForward(&i, s.l[0]))
return (i + 1);
else if(_BitScanForward(&i, s.l[1]))
return (i + 33);
return (0);
#endif
}
#else
# define ffsll(x) __builtin_ffsll(x)
# define ffsl(x) __builtin_ffsl(x)
# define ffs(x) __builtin_ffs(x)
#endif
#endif /* strings_h */

View File

@@ -1,26 +0,0 @@
#ifndef MSVC_COMPAT_WINDOWS_EXTRA_H
#define MSVC_COMPAT_WINDOWS_EXTRA_H
#ifndef ENOENT
# define ENOENT ERROR_PATH_NOT_FOUND
#endif
#ifndef EINVAL
# define EINVAL ERROR_BAD_ARGUMENTS
#endif
#ifndef EAGAIN
# define EAGAIN ERROR_OUTOFMEMORY
#endif
#ifndef EPERM
# define EPERM ERROR_WRITE_FAULT
#endif
#ifndef EFAULT
# define EFAULT ERROR_INVALID_ADDRESS
#endif
#ifndef ENOMEM
# define ENOMEM ERROR_NOT_ENOUGH_MEMORY
#endif
#ifndef ERANGE
# define ERANGE ERROR_INVALID_DATA
#endif
#endif /* MSVC_COMPAT_WINDOWS_EXTRA_H */

View File

@@ -1,12 +0,0 @@
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
install_suffix=@install_suffix@
Name: jemalloc
Description: A general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support.
URL: http://www.canonware.com/jemalloc
Version: @jemalloc_version@
Cflags: -I${includedir}
Libs: -L${libdir} -ljemalloc${install_suffix}

View File

@@ -1,24 +0,0 @@
How to build jemalloc for Windows
=================================
1. Install Cygwin with at least the following packages:
* autoconf
* autogen
* gawk
* grep
* sed
2. Install Visual Studio 2015 with Visual C++
3. Add Cygwin\bin to the PATH environment variable
4. Open "VS2015 x86 Native Tools Command Prompt"
(note: x86/x64 doesn't matter at this point)
5. Generate header files:
sh -c "./autogen.sh CC=cl --enable-lazy-lock=no"
6. Now the project can be opened and built in Visual Studio:
msvc\jemalloc_vc2015.sln

View File

@@ -1,63 +0,0 @@
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 14
VisualStudioVersion = 14.0.24720.0
MinimumVisualStudioVersion = 10.0.40219.1
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{70A99006-6DE9-472B-8F83-4CEE6C616DF3}"
ProjectSection(SolutionItems) = preProject
ReadMe.txt = ReadMe.txt
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "jemalloc", "projects\vc2015\jemalloc\jemalloc.vcxproj", "{8D6BB292-9E1C-413D-9F98-4864BDC1514A}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_threads", "projects\vc2015\test_threads\test_threads.vcxproj", "{09028CFD-4EB7-491D-869C-0708DB97ED44}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|x86 = Debug|x86
Debug-static|x64 = Debug-static|x64
Debug-static|x86 = Debug-static|x86
Release|x64 = Release|x64
Release|x86 = Release|x86
Release-static|x64 = Release-static|x64
Release-static|x86 = Release-static|x86
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug|x64.ActiveCfg = Debug|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug|x64.Build.0 = Debug|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug|x86.ActiveCfg = Debug|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug|x86.Build.0 = Debug|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug-static|x64.ActiveCfg = Debug-static|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug-static|x64.Build.0 = Debug-static|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug-static|x86.ActiveCfg = Debug-static|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Debug-static|x86.Build.0 = Debug-static|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release|x64.ActiveCfg = Release|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release|x64.Build.0 = Release|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release|x86.ActiveCfg = Release|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release|x86.Build.0 = Release|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release-static|x64.ActiveCfg = Release-static|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release-static|x64.Build.0 = Release-static|x64
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release-static|x86.ActiveCfg = Release-static|Win32
{8D6BB292-9E1C-413D-9F98-4864BDC1514A}.Release-static|x86.Build.0 = Release-static|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug|x64.ActiveCfg = Debug|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug|x64.Build.0 = Debug|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug|x86.ActiveCfg = Debug|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug|x86.Build.0 = Debug|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug-static|x64.ActiveCfg = Debug-static|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug-static|x64.Build.0 = Debug-static|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug-static|x86.ActiveCfg = Debug-static|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Debug-static|x86.Build.0 = Debug-static|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release|x64.ActiveCfg = Release|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release|x64.Build.0 = Release|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release|x86.ActiveCfg = Release|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release|x86.Build.0 = Release|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release-static|x64.ActiveCfg = Release-static|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release-static|x64.Build.0 = Release-static|x64
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release-static|x86.ActiveCfg = Release-static|Win32
{09028CFD-4EB7-491D-869C-0708DB97ED44}.Release-static|x86.Build.0 = Release-static|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

View File

@@ -1,392 +0,0 @@
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<ProjectConfiguration Include="Release-static|x64">
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<ProjectConfiguration Include="Release|Win32">
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<ProjectConfiguration Include="Debug|x64">
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<ProjectConfiguration Include="Release|x64">
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// jemalloc C++ threaded test
// Author: Rustam Abdullaev
// Public Domain
#include <atomic>
#include <functional>
#include <future>
#include <random>
#include <thread>
#include <vector>
#include <stdio.h>
#include <jemalloc/jemalloc.h>
using std::vector;
using std::thread;
using std::uniform_int_distribution;
using std::minstd_rand;
int test_threads()
{
je_malloc_conf = "narenas:3";
int narenas = 0;
size_t sz = sizeof(narenas);
je_mallctl("opt.narenas", &narenas, &sz, NULL, 0);
if (narenas != 3) {
printf("Error: unexpected number of arenas: %d\n", narenas);
return 1;
}
static const int sizes[] = { 7, 16, 32, 60, 91, 100, 120, 144, 169, 199, 255, 400, 670, 900, 917, 1025, 3333, 5190, 13131, 49192, 99999, 123123, 255265, 2333111 };
static const int numSizes = (int)(sizeof(sizes) / sizeof(sizes[0]));
vector<thread> workers;
static const int numThreads = narenas + 1, numAllocsMax = 25, numIter1 = 50, numIter2 = 50;
je_malloc_stats_print(NULL, NULL, NULL);
size_t allocated1;
size_t sz1 = sizeof(allocated1);
je_mallctl("stats.active", &allocated1, &sz1, NULL, 0);
printf("\nPress Enter to start threads...\n");
getchar();
printf("Starting %d threads x %d x %d iterations...\n", numThreads, numIter1, numIter2);
for (int i = 0; i < numThreads; i++) {
workers.emplace_back([tid=i]() {
uniform_int_distribution<int> sizeDist(0, numSizes - 1);
minstd_rand rnd(tid * 17);
uint8_t* ptrs[numAllocsMax];
int ptrsz[numAllocsMax];
for (int i = 0; i < numIter1; ++i) {
thread t([&]() {
for (int i = 0; i < numIter2; ++i) {
const int numAllocs = numAllocsMax - sizeDist(rnd);
for (int j = 0; j < numAllocs; j += 64) {
const int x = sizeDist(rnd);
const int sz = sizes[x];
ptrsz[j] = sz;
ptrs[j] = (uint8_t*)je_malloc(sz);
if (!ptrs[j]) {
printf("Unable to allocate %d bytes in thread %d, iter %d, alloc %d. %d\n", sz, tid, i, j, x);
exit(1);
}
for (int k = 0; k < sz; k++)
ptrs[j][k] = tid + k;
}
for (int j = 0; j < numAllocs; j += 64) {
for (int k = 0, sz = ptrsz[j]; k < sz; k++)
if (ptrs[j][k] != (uint8_t)(tid + k)) {
printf("Memory error in thread %d, iter %d, alloc %d @ %d : %02X!=%02X\n", tid, i, j, k, ptrs[j][k], (uint8_t)(tid + k));
exit(1);
}
je_free(ptrs[j]);
}
}
});
t.join();
}
});
}
for (thread& t : workers) {
t.join();
}
je_malloc_stats_print(NULL, NULL, NULL);
size_t allocated2;
je_mallctl("stats.active", &allocated2, &sz1, NULL, 0);
size_t leaked = allocated2 - allocated1;
printf("\nDone. Leaked: %zd bytes\n", leaked);
bool failed = leaked > 65536; // in case C++ runtime allocated something (e.g. iostream locale or facet)
printf("\nTest %s!\n", (failed ? "FAILED" : "successful"));
printf("\nPress Enter to continue...\n");
getchar();
return failed ? 1 : 0;
}

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#pragma once
int test_threads();

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<AdditionalDependencies>jemalloc-$(PlatformToolset)-$(Configuration).lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
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<ItemGroup>
<ClCompile Include="test_threads.cpp" />
<ClCompile Include="test_threads_main.cpp" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\jemalloc\jemalloc.vcxproj">
<Project>{8d6bb292-9e1c-413d-9f98-4864bdc1514a}</Project>
</ProjectReference>
</ItemGroup>
<ItemGroup>
<ClInclude Include="test_threads.h" />
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

View File

@@ -1,26 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Filter Include="Source Files">
<UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
<Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
</Filter>
<Filter Include="Header Files">
<UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
<Extensions>h;hh;hpp;hxx;hm;inl;inc;xsd</Extensions>
</Filter>
</ItemGroup>
<ItemGroup>
<ClCompile Include="test_threads.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="test_threads_main.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="test_threads.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
</Project>

View File

@@ -1,12 +0,0 @@
#include "test_threads.h"
#include <future>
#include <functional>
#include <chrono>
using namespace std::chrono_literals;
int main(int argc, char** argv)
{
int rc = test_threads();
return rc;
}

File diff suppressed because it is too large Load Diff

View File

@@ -5,138 +5,107 @@
/* Data. */
static malloc_mutex_t base_mtx;
static extent_tree_t base_avail_szad;
/*
* Current pages that are being used for internal memory allocations. These
* pages are carved up in cacheline-size quanta, so that there is no chance of
* false cache line sharing.
*/
static void *base_pages;
static void *base_next_addr;
static void *base_past_addr; /* Addr immediately past base_pages. */
static extent_node_t *base_nodes;
static size_t base_allocated;
static size_t base_resident;
static size_t base_mapped;
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
static bool base_pages_alloc(size_t minsize);
/******************************************************************************/
/* base_mtx must be held. */
static extent_node_t *
base_node_try_alloc(void)
static bool
base_pages_alloc(size_t minsize)
{
extent_node_t *node;
if (base_nodes == NULL)
return (NULL);
node = base_nodes;
base_nodes = *(extent_node_t **)node;
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(node, sizeof(extent_node_t));
return (node);
}
/* base_mtx must be held. */
static void
base_node_dalloc(extent_node_t *node)
{
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(node, sizeof(extent_node_t));
*(extent_node_t **)node = base_nodes;
base_nodes = node;
}
/* base_mtx must be held. */
static extent_node_t *
base_chunk_alloc(size_t minsize)
{
extent_node_t *node;
size_t csize, nsize;
void *addr;
size_t csize;
bool zero;
assert(minsize != 0);
node = base_node_try_alloc();
/* Allocate enough space to also carve a node out if necessary. */
nsize = (node == NULL) ? CACHELINE_CEILING(sizeof(extent_node_t)) : 0;
csize = CHUNK_CEILING(minsize + nsize);
addr = chunk_alloc_base(csize);
if (addr == NULL) {
if (node != NULL)
base_node_dalloc(node);
return (NULL);
}
base_mapped += csize;
if (node == NULL) {
node = (extent_node_t *)addr;
addr = (void *)((uintptr_t)addr + nsize);
csize -= nsize;
if (config_stats) {
base_allocated += nsize;
base_resident += PAGE_CEILING(nsize);
}
}
extent_node_init(node, NULL, addr, csize, true, true);
return (node);
csize = CHUNK_CEILING(minsize);
zero = false;
base_pages = chunk_alloc(csize, chunksize, true, &zero,
chunk_dss_prec_get());
if (base_pages == NULL)
return (true);
base_next_addr = base_pages;
base_past_addr = (void *)((uintptr_t)base_pages + csize);
return (false);
}
/*
* base_alloc() guarantees demand-zeroed memory, in order to make multi-page
* sparse data structures such as radix tree nodes efficient with respect to
* physical memory usage.
*/
void *
base_alloc(size_t size)
{
void *ret;
size_t csize, usize;
extent_node_t *node;
extent_node_t key;
size_t csize;
/*
* Round size up to nearest multiple of the cacheline size, so that
* there is no chance of false cache line sharing.
*/
/* Round size up to nearest multiple of the cacheline size. */
csize = CACHELINE_CEILING(size);
usize = s2u(csize);
extent_node_init(&key, NULL, NULL, usize, false, false);
malloc_mutex_lock(&base_mtx);
node = extent_tree_szad_nsearch(&base_avail_szad, &key);
if (node != NULL) {
/* Use existing space. */
extent_tree_szad_remove(&base_avail_szad, node);
} else {
/* Try to allocate more space. */
node = base_chunk_alloc(csize);
/* Make sure there's enough space for the allocation. */
if ((uintptr_t)base_next_addr + csize > (uintptr_t)base_past_addr) {
if (base_pages_alloc(csize)) {
malloc_mutex_unlock(&base_mtx);
return (NULL);
}
}
if (node == NULL) {
ret = NULL;
goto label_return;
/* Allocate. */
ret = base_next_addr;
base_next_addr = (void *)((uintptr_t)base_next_addr + csize);
malloc_mutex_unlock(&base_mtx);
VALGRIND_MAKE_MEM_UNDEFINED(ret, csize);
return (ret);
}
void *
base_calloc(size_t number, size_t size)
{
void *ret = base_alloc(number * size);
if (ret != NULL)
memset(ret, 0, number * size);
return (ret);
}
extent_node_t *
base_node_alloc(void)
{
extent_node_t *ret;
malloc_mutex_lock(&base_mtx);
if (base_nodes != NULL) {
ret = base_nodes;
base_nodes = *(extent_node_t **)ret;
malloc_mutex_unlock(&base_mtx);
VALGRIND_MAKE_MEM_UNDEFINED(ret, sizeof(extent_node_t));
} else {
malloc_mutex_unlock(&base_mtx);
ret = (extent_node_t *)base_alloc(sizeof(extent_node_t));
}
ret = extent_node_addr_get(node);
if (extent_node_size_get(node) > csize) {
extent_node_addr_set(node, (void *)((uintptr_t)ret + csize));
extent_node_size_set(node, extent_node_size_get(node) - csize);
extent_tree_szad_insert(&base_avail_szad, node);
} else
base_node_dalloc(node);
if (config_stats) {
base_allocated += csize;
/*
* Add one PAGE to base_resident for every page boundary that is
* crossed by the new allocation.
*/
base_resident += PAGE_CEILING((uintptr_t)ret + csize) -
PAGE_CEILING((uintptr_t)ret);
}
JEMALLOC_VALGRIND_MAKE_MEM_DEFINED(ret, csize);
label_return:
malloc_mutex_unlock(&base_mtx);
return (ret);
}
void
base_stats_get(size_t *allocated, size_t *resident, size_t *mapped)
base_node_dealloc(extent_node_t *node)
{
VALGRIND_MAKE_MEM_UNDEFINED(node, sizeof(extent_node_t));
malloc_mutex_lock(&base_mtx);
assert(base_allocated <= base_resident);
assert(base_resident <= base_mapped);
*allocated = base_allocated;
*resident = base_resident;
*mapped = base_mapped;
*(extent_node_t **)node = base_nodes;
base_nodes = node;
malloc_mutex_unlock(&base_mtx);
}
@@ -144,10 +113,9 @@ bool
base_boot(void)
{
base_nodes = NULL;
if (malloc_mutex_init(&base_mtx))
return (true);
extent_tree_szad_new(&base_avail_szad);
base_nodes = NULL;
return (false);
}

View File

@@ -2,8 +2,19 @@
#include "jemalloc/internal/jemalloc_internal.h"
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
#ifdef USE_TREE
static size_t bits2groups(size_t nbits);
/******************************************************************************/
static size_t
bits2groups(size_t nbits)
{
return ((nbits >> LG_BITMAP_GROUP_NBITS) +
!!(nbits & BITMAP_GROUP_NBITS_MASK));
}
void
bitmap_info_init(bitmap_info_t *binfo, size_t nbits)
@@ -20,25 +31,33 @@ bitmap_info_init(bitmap_info_t *binfo, size_t nbits)
* that requires only one group.
*/
binfo->levels[0].group_offset = 0;
group_count = BITMAP_BITS2GROUPS(nbits);
group_count = bits2groups(nbits);
for (i = 1; group_count > 1; i++) {
assert(i < BITMAP_MAX_LEVELS);
binfo->levels[i].group_offset = binfo->levels[i-1].group_offset
+ group_count;
group_count = BITMAP_BITS2GROUPS(group_count);
group_count = bits2groups(group_count);
}
binfo->levels[i].group_offset = binfo->levels[i-1].group_offset
+ group_count;
assert(binfo->levels[i].group_offset <= BITMAP_GROUPS_MAX);
binfo->nlevels = i;
binfo->nbits = nbits;
}
static size_t
size_t
bitmap_info_ngroups(const bitmap_info_t *binfo)
{
return (binfo->levels[binfo->nlevels].group_offset);
return (binfo->levels[binfo->nlevels].group_offset << LG_SIZEOF_BITMAP);
}
size_t
bitmap_size(size_t nbits)
{
bitmap_info_t binfo;
bitmap_info_init(&binfo, nbits);
return (bitmap_info_ngroups(&binfo));
}
void
@@ -54,7 +73,8 @@ bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo)
* correspond to the first logical bit in the group, so extra bits
* are the most significant bits of the last group.
*/
memset(bitmap, 0xffU, bitmap_size(binfo));
memset(bitmap, 0xffU, binfo->levels[binfo->nlevels].group_offset <<
LG_SIZEOF_BITMAP);
extra = (BITMAP_GROUP_NBITS - (binfo->nbits & BITMAP_GROUP_NBITS_MASK))
& BITMAP_GROUP_NBITS_MASK;
if (extra != 0)
@@ -68,47 +88,3 @@ bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo)
bitmap[binfo->levels[i+1].group_offset - 1] >>= extra;
}
}
#else /* USE_TREE */
void
bitmap_info_init(bitmap_info_t *binfo, size_t nbits)
{
size_t i;
assert(nbits > 0);
assert(nbits <= (ZU(1) << LG_BITMAP_MAXBITS));
i = nbits >> LG_BITMAP_GROUP_NBITS;
if (nbits % BITMAP_GROUP_NBITS != 0)
i++;
binfo->ngroups = i;
binfo->nbits = nbits;
}
static size_t
bitmap_info_ngroups(const bitmap_info_t *binfo)
{
return (binfo->ngroups);
}
void
bitmap_init(bitmap_t *bitmap, const bitmap_info_t *binfo)
{
size_t extra;
memset(bitmap, 0xffU, bitmap_size(binfo));
extra = (binfo->nbits % (binfo->ngroups * BITMAP_GROUP_NBITS));
if (extra != 0)
bitmap[binfo->ngroups - 1] >>= (BITMAP_GROUP_NBITS - extra);
}
#endif /* USE_TREE */
size_t
bitmap_size(const bitmap_info_t *binfo)
{
return (bitmap_info_ngroups(binfo) << LG_SIZEOF_BITMAP);
}

View File

@@ -5,315 +5,129 @@
/* Data. */
const char *opt_dss = DSS_DEFAULT;
size_t opt_lg_chunk = 0;
size_t opt_lg_chunk = LG_CHUNK_DEFAULT;
/* Used exclusively for gdump triggering. */
static size_t curchunks;
static size_t highchunks;
malloc_mutex_t chunks_mtx;
chunk_stats_t stats_chunks;
rtree_t chunks_rtree;
/*
* Trees of chunks that were previously allocated (trees differ only in node
* ordering). These are used when allocating chunks, in an attempt to re-use
* address space. Depending on function, different tree orderings are needed,
* which is why there are two trees with the same contents.
*/
static extent_tree_t chunks_szad_mmap;
static extent_tree_t chunks_ad_mmap;
static extent_tree_t chunks_szad_dss;
static extent_tree_t chunks_ad_dss;
rtree_t *chunks_rtree;
/* Various chunk-related settings. */
size_t chunksize;
size_t chunksize_mask; /* (chunksize - 1). */
size_t chunk_npages;
static void *chunk_alloc_default(void *new_addr, size_t size,
size_t alignment, bool *zero, bool *commit, unsigned arena_ind);
static bool chunk_dalloc_default(void *chunk, size_t size, bool committed,
unsigned arena_ind);
static bool chunk_commit_default(void *chunk, size_t size, size_t offset,
size_t length, unsigned arena_ind);
static bool chunk_decommit_default(void *chunk, size_t size, size_t offset,
size_t length, unsigned arena_ind);
static bool chunk_purge_default(void *chunk, size_t size, size_t offset,
size_t length, unsigned arena_ind);
static bool chunk_split_default(void *chunk, size_t size, size_t size_a,
size_t size_b, bool committed, unsigned arena_ind);
static bool chunk_merge_default(void *chunk_a, size_t size_a, void *chunk_b,
size_t size_b, bool committed, unsigned arena_ind);
const chunk_hooks_t chunk_hooks_default = {
chunk_alloc_default,
chunk_dalloc_default,
chunk_commit_default,
chunk_decommit_default,
chunk_purge_default,
chunk_split_default,
chunk_merge_default
};
size_t map_bias;
size_t arena_maxclass; /* Max size class for arenas. */
/******************************************************************************/
/*
* Function prototypes for static functions that are referenced prior to
* definition.
*/
/* Function prototypes for non-inline static functions. */
static void chunk_record(arena_t *arena, chunk_hooks_t *chunk_hooks,
extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, bool cache,
void *chunk, size_t size, bool zeroed, bool committed);
static void *chunk_recycle(extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, size_t size, size_t alignment, bool base,
bool *zero);
static void chunk_record(extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, void *chunk, size_t size);
/******************************************************************************/
static chunk_hooks_t
chunk_hooks_get_locked(arena_t *arena)
{
return (arena->chunk_hooks);
}
chunk_hooks_t
chunk_hooks_get(arena_t *arena)
{
chunk_hooks_t chunk_hooks;
malloc_mutex_lock(&arena->chunks_mtx);
chunk_hooks = chunk_hooks_get_locked(arena);
malloc_mutex_unlock(&arena->chunks_mtx);
return (chunk_hooks);
}
chunk_hooks_t
chunk_hooks_set(arena_t *arena, const chunk_hooks_t *chunk_hooks)
{
chunk_hooks_t old_chunk_hooks;
malloc_mutex_lock(&arena->chunks_mtx);
old_chunk_hooks = arena->chunk_hooks;
/*
* Copy each field atomically so that it is impossible for readers to
* see partially updated pointers. There are places where readers only
* need one hook function pointer (therefore no need to copy the
* entirety of arena->chunk_hooks), and stale reads do not affect
* correctness, so they perform unlocked reads.
*/
#define ATOMIC_COPY_HOOK(n) do { \
union { \
chunk_##n##_t **n; \
void **v; \
} u; \
u.n = &arena->chunk_hooks.n; \
atomic_write_p(u.v, chunk_hooks->n); \
} while (0)
ATOMIC_COPY_HOOK(alloc);
ATOMIC_COPY_HOOK(dalloc);
ATOMIC_COPY_HOOK(commit);
ATOMIC_COPY_HOOK(decommit);
ATOMIC_COPY_HOOK(purge);
ATOMIC_COPY_HOOK(split);
ATOMIC_COPY_HOOK(merge);
#undef ATOMIC_COPY_HOOK
malloc_mutex_unlock(&arena->chunks_mtx);
return (old_chunk_hooks);
}
static void
chunk_hooks_assure_initialized_impl(arena_t *arena, chunk_hooks_t *chunk_hooks,
bool locked)
{
static const chunk_hooks_t uninitialized_hooks =
CHUNK_HOOKS_INITIALIZER;
if (memcmp(chunk_hooks, &uninitialized_hooks, sizeof(chunk_hooks_t)) ==
0) {
*chunk_hooks = locked ? chunk_hooks_get_locked(arena) :
chunk_hooks_get(arena);
}
}
static void
chunk_hooks_assure_initialized_locked(arena_t *arena,
chunk_hooks_t *chunk_hooks)
{
chunk_hooks_assure_initialized_impl(arena, chunk_hooks, true);
}
static void
chunk_hooks_assure_initialized(arena_t *arena, chunk_hooks_t *chunk_hooks)
{
chunk_hooks_assure_initialized_impl(arena, chunk_hooks, false);
}
bool
chunk_register(const void *chunk, const extent_node_t *node)
{
assert(extent_node_addr_get(node) == chunk);
if (rtree_set(&chunks_rtree, (uintptr_t)chunk, node))
return (true);
if (config_prof && opt_prof) {
size_t size = extent_node_size_get(node);
size_t nadd = (size == 0) ? 1 : size / chunksize;
size_t cur = atomic_add_z(&curchunks, nadd);
size_t high = atomic_read_z(&highchunks);
while (cur > high && atomic_cas_z(&highchunks, high, cur)) {
/*
* Don't refresh cur, because it may have decreased
* since this thread lost the highchunks update race.
*/
high = atomic_read_z(&highchunks);
}
if (cur > high && prof_gdump_get_unlocked())
prof_gdump();
}
return (false);
}
void
chunk_deregister(const void *chunk, const extent_node_t *node)
{
bool err;
err = rtree_set(&chunks_rtree, (uintptr_t)chunk, NULL);
assert(!err);
if (config_prof && opt_prof) {
size_t size = extent_node_size_get(node);
size_t nsub = (size == 0) ? 1 : size / chunksize;
assert(atomic_read_z(&curchunks) >= nsub);
atomic_sub_z(&curchunks, nsub);
}
}
/*
* Do first-best-fit chunk selection, i.e. select the lowest chunk that best
* fits.
*/
static extent_node_t *
chunk_first_best_fit(arena_t *arena, extent_tree_t *chunks_szad,
extent_tree_t *chunks_ad, size_t size)
{
extent_node_t key;
assert(size == CHUNK_CEILING(size));
extent_node_init(&key, arena, NULL, size, false, false);
return (extent_tree_szad_nsearch(chunks_szad, &key));
}
static void *
chunk_recycle(arena_t *arena, chunk_hooks_t *chunk_hooks,
extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, bool cache,
void *new_addr, size_t size, size_t alignment, bool *zero, bool *commit,
bool dalloc_node)
chunk_recycle(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, size_t size,
size_t alignment, bool base, bool *zero)
{
void *ret;
extent_node_t *node;
extent_node_t key;
size_t alloc_size, leadsize, trailsize;
bool zeroed, committed;
bool zeroed;
assert(new_addr == NULL || alignment == chunksize);
/*
* Cached chunks use the node linkage embedded in their headers, in
* which case dalloc_node is true, and new_addr is non-NULL because
* we're operating on a specific chunk.
*/
assert(dalloc_node || new_addr != NULL);
if (base) {
/*
* This function may need to call base_node_{,de}alloc(), but
* the current chunk allocation request is on behalf of the
* base allocator. Avoid deadlock (and if that weren't an
* issue, potential for infinite recursion) by returning NULL.
*/
return (NULL);
}
alloc_size = CHUNK_CEILING(s2u(size + alignment - chunksize));
alloc_size = size + alignment - chunksize;
/* Beware size_t wrap-around. */
if (alloc_size < size)
return (NULL);
malloc_mutex_lock(&arena->chunks_mtx);
chunk_hooks_assure_initialized_locked(arena, chunk_hooks);
if (new_addr != NULL) {
extent_node_t key;
extent_node_init(&key, arena, new_addr, alloc_size, false,
false);
node = extent_tree_ad_search(chunks_ad, &key);
} else {
node = chunk_first_best_fit(arena, chunks_szad, chunks_ad,
alloc_size);
}
if (node == NULL || (new_addr != NULL && extent_node_size_get(node) <
size)) {
malloc_mutex_unlock(&arena->chunks_mtx);
key.addr = NULL;
key.size = alloc_size;
malloc_mutex_lock(&chunks_mtx);
node = extent_tree_szad_nsearch(chunks_szad, &key);
if (node == NULL) {
malloc_mutex_unlock(&chunks_mtx);
return (NULL);
}
leadsize = ALIGNMENT_CEILING((uintptr_t)extent_node_addr_get(node),
alignment) - (uintptr_t)extent_node_addr_get(node);
assert(new_addr == NULL || leadsize == 0);
assert(extent_node_size_get(node) >= leadsize + size);
trailsize = extent_node_size_get(node) - leadsize - size;
ret = (void *)((uintptr_t)extent_node_addr_get(node) + leadsize);
zeroed = extent_node_zeroed_get(node);
leadsize = ALIGNMENT_CEILING((uintptr_t)node->addr, alignment) -
(uintptr_t)node->addr;
assert(node->size >= leadsize + size);
trailsize = node->size - leadsize - size;
ret = (void *)((uintptr_t)node->addr + leadsize);
zeroed = node->zeroed;
if (zeroed)
*zero = true;
committed = extent_node_committed_get(node);
if (committed)
*commit = true;
/* Split the lead. */
if (leadsize != 0 &&
chunk_hooks->split(extent_node_addr_get(node),
extent_node_size_get(node), leadsize, size, false, arena->ind)) {
malloc_mutex_unlock(&arena->chunks_mtx);
return (NULL);
}
*zero = true;
/* Remove node from the tree. */
extent_tree_szad_remove(chunks_szad, node);
extent_tree_ad_remove(chunks_ad, node);
arena_chunk_cache_maybe_remove(arena, node, cache);
if (leadsize != 0) {
/* Insert the leading space as a smaller chunk. */
extent_node_size_set(node, leadsize);
node->size = leadsize;
extent_tree_szad_insert(chunks_szad, node);
extent_tree_ad_insert(chunks_ad, node);
arena_chunk_cache_maybe_insert(arena, node, cache);
node = NULL;
}
if (trailsize != 0) {
/* Split the trail. */
if (chunk_hooks->split(ret, size + trailsize, size,
trailsize, false, arena->ind)) {
if (dalloc_node && node != NULL)
arena_node_dalloc(arena, node);
malloc_mutex_unlock(&arena->chunks_mtx);
chunk_record(arena, chunk_hooks, chunks_szad, chunks_ad,
cache, ret, size + trailsize, zeroed, committed);
return (NULL);
}
/* Insert the trailing space as a smaller chunk. */
if (node == NULL) {
node = arena_node_alloc(arena);
/*
* An additional node is required, but
* base_node_alloc() can cause a new base chunk to be
* allocated. Drop chunks_mtx in order to avoid
* deadlock, and if node allocation fails, deallocate
* the result before returning an error.
*/
malloc_mutex_unlock(&chunks_mtx);
node = base_node_alloc();
if (node == NULL) {
malloc_mutex_unlock(&arena->chunks_mtx);
chunk_record(arena, chunk_hooks, chunks_szad,
chunks_ad, cache, ret, size + trailsize,
zeroed, committed);
chunk_dealloc(ret, size, true);
return (NULL);
}
malloc_mutex_lock(&chunks_mtx);
}
extent_node_init(node, arena, (void *)((uintptr_t)(ret) + size),
trailsize, zeroed, committed);
node->addr = (void *)((uintptr_t)(ret) + size);
node->size = trailsize;
node->zeroed = zeroed;
extent_tree_szad_insert(chunks_szad, node);
extent_tree_ad_insert(chunks_ad, node);
arena_chunk_cache_maybe_insert(arena, node, cache);
node = NULL;
}
if (!committed && chunk_hooks->commit(ret, size, 0, size, arena->ind)) {
malloc_mutex_unlock(&arena->chunks_mtx);
chunk_record(arena, chunk_hooks, chunks_szad, chunks_ad, cache,
ret, size, zeroed, committed);
return (NULL);
}
malloc_mutex_unlock(&arena->chunks_mtx);
malloc_mutex_unlock(&chunks_mtx);
assert(dalloc_node || node != NULL);
if (dalloc_node && node != NULL)
arena_node_dalloc(arena, node);
if (node != NULL)
base_node_dealloc(node);
if (*zero) {
if (!zeroed)
if (zeroed == false)
memset(ret, 0, size);
else if (config_debug) {
size_t i;
size_t *p = (size_t *)(uintptr_t)ret;
JEMALLOC_VALGRIND_MAKE_MEM_DEFINED(ret, size);
VALGRIND_MAKE_MEM_DEFINED(ret, size);
for (i = 0; i < size / sizeof(size_t); i++)
assert(p[i] == 0);
}
@@ -322,14 +136,14 @@ chunk_recycle(arena_t *arena, chunk_hooks_t *chunk_hooks,
}
/*
* If the caller specifies (!*zero), it is still possible to receive zeroed
* memory, in which case *zero is toggled to true. arena_chunk_alloc() takes
* advantage of this to avoid demanding zeroed chunks, but taking advantage of
* them if they are returned.
* If the caller specifies (*zero == false), it is still possible to receive
* zeroed memory, in which case *zero is toggled to true. arena_chunk_alloc()
* takes advantage of this to avoid demanding zeroed chunks, but taking
* advantage of them if they are returned.
*/
static void *
chunk_alloc_core(arena_t *arena, void *new_addr, size_t size, size_t alignment,
bool *zero, bool *commit, dss_prec_t dss_prec)
void *
chunk_alloc(size_t size, size_t alignment, bool base, bool *zero,
dss_prec_t dss_prec)
{
void *ret;
@@ -339,206 +153,121 @@ chunk_alloc_core(arena_t *arena, void *new_addr, size_t size, size_t alignment,
assert((alignment & chunksize_mask) == 0);
/* "primary" dss. */
if (have_dss && dss_prec == dss_prec_primary && (ret =
chunk_alloc_dss(arena, new_addr, size, alignment, zero, commit)) !=
NULL)
return (ret);
if (config_dss && dss_prec == dss_prec_primary) {
if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size,
alignment, base, zero)) != NULL)
goto label_return;
if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL)
goto label_return;
}
/* mmap. */
if ((ret = chunk_alloc_mmap(new_addr, size, alignment, zero, commit)) !=
NULL)
return (ret);
if ((ret = chunk_recycle(&chunks_szad_mmap, &chunks_ad_mmap, size,
alignment, base, zero)) != NULL)
goto label_return;
if ((ret = chunk_alloc_mmap(size, alignment, zero)) != NULL)
goto label_return;
/* "secondary" dss. */
if (have_dss && dss_prec == dss_prec_secondary && (ret =
chunk_alloc_dss(arena, new_addr, size, alignment, zero, commit)) !=
NULL)
return (ret);
/* All strategies for allocation failed. */
return (NULL);
}
void *
chunk_alloc_base(size_t size)
{
void *ret;
bool zero, commit;
/*
* Directly call chunk_alloc_mmap() rather than chunk_alloc_core()
* because it's critical that chunk_alloc_base() return untouched
* demand-zeroed virtual memory.
*/
zero = true;
commit = true;
ret = chunk_alloc_mmap(NULL, size, chunksize, &zero, &commit);
if (ret == NULL)
return (NULL);
if (config_valgrind)
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
return (ret);
}
void *
chunk_alloc_cache(arena_t *arena, chunk_hooks_t *chunk_hooks, void *new_addr,
size_t size, size_t alignment, bool *zero, bool dalloc_node)
{
void *ret;
bool commit;
assert(size != 0);
assert((size & chunksize_mask) == 0);
assert(alignment != 0);
assert((alignment & chunksize_mask) == 0);
commit = true;
ret = chunk_recycle(arena, chunk_hooks, &arena->chunks_szad_cached,
&arena->chunks_ad_cached, true, new_addr, size, alignment, zero,
&commit, dalloc_node);
if (ret == NULL)
return (NULL);
assert(commit);
if (config_valgrind)
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
return (ret);
}
static arena_t *
chunk_arena_get(unsigned arena_ind)
{
arena_t *arena;
arena = arena_get(arena_ind, false);
/*
* The arena we're allocating on behalf of must have been initialized
* already.
*/
assert(arena != NULL);
return (arena);
}
static void *
chunk_alloc_default(void *new_addr, size_t size, size_t alignment, bool *zero,
bool *commit, unsigned arena_ind)
{
void *ret;
arena_t *arena;
arena = chunk_arena_get(arena_ind);
ret = chunk_alloc_core(arena, new_addr, size, alignment, zero,
commit, arena->dss_prec);
if (ret == NULL)
return (NULL);
if (config_valgrind)
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
return (ret);
}
static void *
chunk_alloc_retained(arena_t *arena, chunk_hooks_t *chunk_hooks, void *new_addr,
size_t size, size_t alignment, bool *zero, bool *commit)
{
assert(size != 0);
assert((size & chunksize_mask) == 0);
assert(alignment != 0);
assert((alignment & chunksize_mask) == 0);
return (chunk_recycle(arena, chunk_hooks, &arena->chunks_szad_retained,
&arena->chunks_ad_retained, false, new_addr, size, alignment, zero,
commit, true));
}
void *
chunk_alloc_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks, void *new_addr,
size_t size, size_t alignment, bool *zero, bool *commit)
{
void *ret;
chunk_hooks_assure_initialized(arena, chunk_hooks);
ret = chunk_alloc_retained(arena, chunk_hooks, new_addr, size,
alignment, zero, commit);
if (ret == NULL) {
ret = chunk_hooks->alloc(new_addr, size, alignment, zero,
commit, arena->ind);
if (ret == NULL)
return (NULL);
if (config_dss && dss_prec == dss_prec_secondary) {
if ((ret = chunk_recycle(&chunks_szad_dss, &chunks_ad_dss, size,
alignment, base, zero)) != NULL)
goto label_return;
if ((ret = chunk_alloc_dss(size, alignment, zero)) != NULL)
goto label_return;
}
if (config_valgrind && chunk_hooks->alloc != chunk_alloc_default)
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(ret, chunksize);
/* All strategies for allocation failed. */
ret = NULL;
label_return:
if (ret != NULL) {
if (config_ivsalloc && base == false) {
if (rtree_set(chunks_rtree, (uintptr_t)ret, 1)) {
chunk_dealloc(ret, size, true);
return (NULL);
}
}
if (config_stats || config_prof) {
bool gdump;
malloc_mutex_lock(&chunks_mtx);
if (config_stats)
stats_chunks.nchunks += (size / chunksize);
stats_chunks.curchunks += (size / chunksize);
if (stats_chunks.curchunks > stats_chunks.highchunks) {
stats_chunks.highchunks =
stats_chunks.curchunks;
if (config_prof)
gdump = true;
} else if (config_prof)
gdump = false;
malloc_mutex_unlock(&chunks_mtx);
if (config_prof && opt_prof && opt_prof_gdump && gdump)
prof_gdump();
}
if (config_valgrind)
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
}
assert(CHUNK_ADDR2BASE(ret) == ret);
return (ret);
}
static void
chunk_record(arena_t *arena, chunk_hooks_t *chunk_hooks,
extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, bool cache,
void *chunk, size_t size, bool zeroed, bool committed)
chunk_record(extent_tree_t *chunks_szad, extent_tree_t *chunks_ad, void *chunk,
size_t size)
{
bool unzeroed;
extent_node_t *node, *prev;
extent_node_t key;
extent_node_t *xnode, *node, *prev, *xprev, key;
assert(!cache || !zeroed);
unzeroed = cache || !zeroed;
JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(chunk, size);
unzeroed = pages_purge(chunk, size);
VALGRIND_MAKE_MEM_NOACCESS(chunk, size);
malloc_mutex_lock(&arena->chunks_mtx);
chunk_hooks_assure_initialized_locked(arena, chunk_hooks);
extent_node_init(&key, arena, (void *)((uintptr_t)chunk + size), 0,
false, false);
/*
* Allocate a node before acquiring chunks_mtx even though it might not
* be needed, because base_node_alloc() may cause a new base chunk to
* be allocated, which could cause deadlock if chunks_mtx were already
* held.
*/
xnode = base_node_alloc();
/* Use xprev to implement conditional deferred deallocation of prev. */
xprev = NULL;
malloc_mutex_lock(&chunks_mtx);
key.addr = (void *)((uintptr_t)chunk + size);
node = extent_tree_ad_nsearch(chunks_ad, &key);
/* Try to coalesce forward. */
if (node != NULL && extent_node_addr_get(node) ==
extent_node_addr_get(&key) && extent_node_committed_get(node) ==
committed && !chunk_hooks->merge(chunk, size,
extent_node_addr_get(node), extent_node_size_get(node), false,
arena->ind)) {
if (node != NULL && node->addr == key.addr) {
/*
* Coalesce chunk with the following address range. This does
* not change the position within chunks_ad, so only
* remove/insert from/into chunks_szad.
*/
extent_tree_szad_remove(chunks_szad, node);
arena_chunk_cache_maybe_remove(arena, node, cache);
extent_node_addr_set(node, chunk);
extent_node_size_set(node, size + extent_node_size_get(node));
extent_node_zeroed_set(node, extent_node_zeroed_get(node) &&
!unzeroed);
node->addr = chunk;
node->size += size;
node->zeroed = (node->zeroed && (unzeroed == false));
extent_tree_szad_insert(chunks_szad, node);
arena_chunk_cache_maybe_insert(arena, node, cache);
} else {
/* Coalescing forward failed, so insert a new node. */
node = arena_node_alloc(arena);
if (node == NULL) {
if (xnode == NULL) {
/*
* Node allocation failed, which is an exceedingly
* unlikely failure. Leak chunk after making sure its
* pages have already been purged, so that this is only
* a virtual memory leak.
* base_node_alloc() failed, which is an exceedingly
* unlikely failure. Leak chunk; its pages have
* already been purged, so this is only a virtual
* memory leak.
*/
if (cache) {
chunk_purge_wrapper(arena, chunk_hooks, chunk,
size, 0, size);
}
goto label_return;
}
extent_node_init(node, arena, chunk, size, !unzeroed,
committed);
node = xnode;
xnode = NULL; /* Prevent deallocation below. */
node->addr = chunk;
node->size = size;
node->zeroed = (unzeroed == false);
extent_tree_ad_insert(chunks_ad, node);
extent_tree_szad_insert(chunks_szad, node);
arena_chunk_cache_maybe_insert(arena, node, cache);
}
/* Try to coalesce backward. */
prev = extent_tree_ad_prev(chunks_ad, node);
if (prev != NULL && (void *)((uintptr_t)extent_node_addr_get(prev) +
extent_node_size_get(prev)) == chunk &&
extent_node_committed_get(prev) == committed &&
!chunk_hooks->merge(extent_node_addr_get(prev),
extent_node_size_get(prev), chunk, size, false, arena->ind)) {
if (prev != NULL && (void *)((uintptr_t)prev->addr + prev->size) ==
chunk) {
/*
* Coalesce chunk with the previous address range. This does
* not change the position within chunks_ad, so only
@@ -546,27 +275,44 @@ chunk_record(arena_t *arena, chunk_hooks_t *chunk_hooks,
*/
extent_tree_szad_remove(chunks_szad, prev);
extent_tree_ad_remove(chunks_ad, prev);
arena_chunk_cache_maybe_remove(arena, prev, cache);
extent_tree_szad_remove(chunks_szad, node);
arena_chunk_cache_maybe_remove(arena, node, cache);
extent_node_addr_set(node, extent_node_addr_get(prev));
extent_node_size_set(node, extent_node_size_get(prev) +
extent_node_size_get(node));
extent_node_zeroed_set(node, extent_node_zeroed_get(prev) &&
extent_node_zeroed_get(node));
extent_tree_szad_insert(chunks_szad, node);
arena_chunk_cache_maybe_insert(arena, node, cache);
arena_node_dalloc(arena, prev);
extent_tree_szad_remove(chunks_szad, node);
node->addr = prev->addr;
node->size += prev->size;
node->zeroed = (node->zeroed && prev->zeroed);
extent_tree_szad_insert(chunks_szad, node);
xprev = prev;
}
label_return:
malloc_mutex_unlock(&arena->chunks_mtx);
malloc_mutex_unlock(&chunks_mtx);
/*
* Deallocate xnode and/or xprev after unlocking chunks_mtx in order to
* avoid potential deadlock.
*/
if (xnode != NULL)
base_node_dealloc(xnode);
if (xprev != NULL)
base_node_dealloc(xprev);
}
void
chunk_dalloc_cache(arena_t *arena, chunk_hooks_t *chunk_hooks, void *chunk,
size_t size, bool committed)
chunk_unmap(void *chunk, size_t size)
{
assert(chunk != NULL);
assert(CHUNK_ADDR2BASE(chunk) == chunk);
assert(size != 0);
assert((size & chunksize_mask) == 0);
if (config_dss && chunk_in_dss(chunk))
chunk_record(&chunks_szad_dss, &chunks_ad_dss, chunk, size);
else if (chunk_dealloc_mmap(chunk, size))
chunk_record(&chunks_szad_mmap, &chunks_ad_mmap, chunk, size);
}
void
chunk_dealloc(void *chunk, size_t size, bool unmap)
{
assert(chunk != NULL);
@@ -574,164 +320,22 @@ chunk_dalloc_cache(arena_t *arena, chunk_hooks_t *chunk_hooks, void *chunk,
assert(size != 0);
assert((size & chunksize_mask) == 0);
chunk_record(arena, chunk_hooks, &arena->chunks_szad_cached,
&arena->chunks_ad_cached, true, chunk, size, false, committed);
arena_maybe_purge(arena);
}
void
chunk_dalloc_arena(arena_t *arena, chunk_hooks_t *chunk_hooks, void *chunk,
size_t size, bool zeroed, bool committed)
{
assert(chunk != NULL);
assert(CHUNK_ADDR2BASE(chunk) == chunk);
assert(size != 0);
assert((size & chunksize_mask) == 0);
chunk_hooks_assure_initialized(arena, chunk_hooks);
/* Try to deallocate. */
if (!chunk_hooks->dalloc(chunk, size, committed, arena->ind))
return;
/* Try to decommit; purge if that fails. */
if (committed) {
committed = chunk_hooks->decommit(chunk, size, 0, size,
arena->ind);
if (config_ivsalloc)
rtree_set(chunks_rtree, (uintptr_t)chunk, 0);
if (config_stats || config_prof) {
malloc_mutex_lock(&chunks_mtx);
assert(stats_chunks.curchunks >= (size / chunksize));
stats_chunks.curchunks -= (size / chunksize);
malloc_mutex_unlock(&chunks_mtx);
}
zeroed = !committed || !chunk_hooks->purge(chunk, size, 0, size,
arena->ind);
chunk_record(arena, chunk_hooks, &arena->chunks_szad_retained,
&arena->chunks_ad_retained, false, chunk, size, zeroed, committed);
}
static bool
chunk_dalloc_default(void *chunk, size_t size, bool committed,
unsigned arena_ind)
{
if (!have_dss || !chunk_in_dss(chunk))
return (chunk_dalloc_mmap(chunk, size));
return (true);
}
void
chunk_dalloc_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks, void *chunk,
size_t size, bool committed)
{
chunk_hooks_assure_initialized(arena, chunk_hooks);
chunk_hooks->dalloc(chunk, size, committed, arena->ind);
if (config_valgrind && chunk_hooks->dalloc != chunk_dalloc_default)
JEMALLOC_VALGRIND_MAKE_MEM_NOACCESS(chunk, size);
}
static bool
chunk_commit_default(void *chunk, size_t size, size_t offset, size_t length,
unsigned arena_ind)
{
return (pages_commit((void *)((uintptr_t)chunk + (uintptr_t)offset),
length));
}
static bool
chunk_decommit_default(void *chunk, size_t size, size_t offset, size_t length,
unsigned arena_ind)
{
return (pages_decommit((void *)((uintptr_t)chunk + (uintptr_t)offset),
length));
}
bool
chunk_purge_arena(arena_t *arena, void *chunk, size_t offset, size_t length)
{
assert(chunk != NULL);
assert(CHUNK_ADDR2BASE(chunk) == chunk);
assert((offset & PAGE_MASK) == 0);
assert(length != 0);
assert((length & PAGE_MASK) == 0);
return (pages_purge((void *)((uintptr_t)chunk + (uintptr_t)offset),
length));
}
static bool
chunk_purge_default(void *chunk, size_t size, size_t offset, size_t length,
unsigned arena_ind)
{
return (chunk_purge_arena(chunk_arena_get(arena_ind), chunk, offset,
length));
}
bool
chunk_purge_wrapper(arena_t *arena, chunk_hooks_t *chunk_hooks, void *chunk,
size_t size, size_t offset, size_t length)
{
chunk_hooks_assure_initialized(arena, chunk_hooks);
return (chunk_hooks->purge(chunk, size, offset, length, arena->ind));
}
static bool
chunk_split_default(void *chunk, size_t size, size_t size_a, size_t size_b,
bool committed, unsigned arena_ind)
{
if (!maps_coalesce)
return (true);
return (false);
}
static bool
chunk_merge_default(void *chunk_a, size_t size_a, void *chunk_b, size_t size_b,
bool committed, unsigned arena_ind)
{
if (!maps_coalesce)
return (true);
if (have_dss && chunk_in_dss(chunk_a) != chunk_in_dss(chunk_b))
return (true);
return (false);
}
static rtree_node_elm_t *
chunks_rtree_node_alloc(size_t nelms)
{
return ((rtree_node_elm_t *)base_alloc(nelms *
sizeof(rtree_node_elm_t)));
if (unmap)
chunk_unmap(chunk, size);
}
bool
chunk_boot(void)
{
#ifdef _WIN32
SYSTEM_INFO info;
GetSystemInfo(&info);
/*
* Verify actual page size is equal to or an integral multiple of
* configured page size.
*/
if (info.dwPageSize & ((1U << LG_PAGE) - 1))
return (true);
/*
* Configure chunksize (if not set) to match granularity (usually 64K),
* so pages_map will always take fast path.
*/
if (!opt_lg_chunk) {
opt_lg_chunk = ffs_u((unsigned)info.dwAllocationGranularity)
- 1;
}
#else
if (!opt_lg_chunk)
opt_lg_chunk = LG_CHUNK_DEFAULT;
#endif
/* Set variables according to the value of opt_lg_chunk. */
chunksize = (ZU(1) << opt_lg_chunk);
@@ -739,11 +343,23 @@ chunk_boot(void)
chunksize_mask = chunksize - 1;
chunk_npages = (chunksize >> LG_PAGE);
if (have_dss && chunk_dss_boot())
return (true);
if (rtree_new(&chunks_rtree, (unsigned)((ZU(1) << (LG_SIZEOF_PTR+3)) -
opt_lg_chunk), chunks_rtree_node_alloc, NULL))
if (config_stats || config_prof) {
if (malloc_mutex_init(&chunks_mtx))
return (true);
memset(&stats_chunks, 0, sizeof(chunk_stats_t));
}
if (config_dss && chunk_dss_boot())
return (true);
extent_tree_szad_new(&chunks_szad_mmap);
extent_tree_ad_new(&chunks_ad_mmap);
extent_tree_szad_new(&chunks_szad_dss);
extent_tree_ad_new(&chunks_ad_dss);
if (config_ivsalloc) {
chunks_rtree = rtree_new((ZU(1) << (LG_SIZEOF_PTR+3)) -
opt_lg_chunk, base_alloc, NULL);
if (chunks_rtree == NULL)
return (true);
}
return (false);
}
@@ -752,6 +368,9 @@ void
chunk_prefork(void)
{
malloc_mutex_prefork(&chunks_mtx);
if (config_ivsalloc)
rtree_prefork(chunks_rtree);
chunk_dss_prefork();
}
@@ -760,6 +379,9 @@ chunk_postfork_parent(void)
{
chunk_dss_postfork_parent();
if (config_ivsalloc)
rtree_postfork_parent(chunks_rtree);
malloc_mutex_postfork_parent(&chunks_mtx);
}
void
@@ -767,4 +389,7 @@ chunk_postfork_child(void)
{
chunk_dss_postfork_child();
if (config_ivsalloc)
rtree_postfork_child(chunks_rtree);
malloc_mutex_postfork_child(&chunks_mtx);
}

View File

@@ -32,7 +32,7 @@ static void *
chunk_dss_sbrk(intptr_t increment)
{
#ifdef JEMALLOC_DSS
#ifdef JEMALLOC_HAVE_SBRK
return (sbrk(increment));
#else
not_implemented();
@@ -45,7 +45,7 @@ chunk_dss_prec_get(void)
{
dss_prec_t ret;
if (!have_dss)
if (config_dss == false)
return (dss_prec_disabled);
malloc_mutex_lock(&dss_mtx);
ret = dss_prec_default;
@@ -57,8 +57,8 @@ bool
chunk_dss_prec_set(dss_prec_t dss_prec)
{
if (!have_dss)
return (dss_prec != dss_prec_disabled);
if (config_dss == false)
return (true);
malloc_mutex_lock(&dss_mtx);
dss_prec_default = dss_prec;
malloc_mutex_unlock(&dss_mtx);
@@ -66,10 +66,11 @@ chunk_dss_prec_set(dss_prec_t dss_prec)
}
void *
chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size, size_t alignment,
bool *zero, bool *commit)
chunk_alloc_dss(size_t size, size_t alignment, bool *zero)
{
cassert(have_dss);
void *ret;
cassert(config_dss);
assert(size > 0 && (size & chunksize_mask) == 0);
assert(alignment > 0 && (alignment & chunksize_mask) == 0);
@@ -82,6 +83,9 @@ chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size, size_t alignment,
malloc_mutex_lock(&dss_mtx);
if (dss_prev != (void *)-1) {
size_t gap_size, cpad_size;
void *cpad, *dss_next;
intptr_t incr;
/*
* The loop is necessary to recover from races with other
@@ -89,20 +93,8 @@ chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size, size_t alignment,
* malloc.
*/
do {
void *ret, *cpad, *dss_next;
size_t gap_size, cpad_size;
intptr_t incr;
/* Avoid an unnecessary system call. */
if (new_addr != NULL && dss_max != new_addr)
break;
/* Get the current end of the DSS. */
dss_max = chunk_dss_sbrk(0);
/* Make sure the earlier condition still holds. */
if (new_addr != NULL && dss_max != new_addr)
break;
/*
* Calculate how much padding is necessary to
* chunk-align the end of the DSS.
@@ -131,20 +123,12 @@ chunk_alloc_dss(arena_t *arena, void *new_addr, size_t size, size_t alignment,
/* Success. */
dss_max = dss_next;
malloc_mutex_unlock(&dss_mtx);
if (cpad_size != 0) {
chunk_hooks_t chunk_hooks =
CHUNK_HOOKS_INITIALIZER;
chunk_dalloc_wrapper(arena,
&chunk_hooks, cpad, cpad_size,
true);
}
if (cpad_size != 0)
chunk_unmap(cpad, cpad_size);
if (*zero) {
JEMALLOC_VALGRIND_MAKE_MEM_UNDEFINED(
ret, size);
VALGRIND_MAKE_MEM_UNDEFINED(ret, size);
memset(ret, 0, size);
}
if (!*commit)
*commit = pages_decommit(ret, size);
return (ret);
}
} while (dss_prev != (void *)-1);
@@ -159,7 +143,7 @@ chunk_in_dss(void *chunk)
{
bool ret;
cassert(have_dss);
cassert(config_dss);
malloc_mutex_lock(&dss_mtx);
if ((uintptr_t)chunk >= (uintptr_t)dss_base
@@ -176,7 +160,7 @@ bool
chunk_dss_boot(void)
{
cassert(have_dss);
cassert(config_dss);
if (malloc_mutex_init(&dss_mtx))
return (true);
@@ -191,7 +175,7 @@ void
chunk_dss_prefork(void)
{
if (have_dss)
if (config_dss)
malloc_mutex_prefork(&dss_mtx);
}
@@ -199,7 +183,7 @@ void
chunk_dss_postfork_parent(void)
{
if (have_dss)
if (config_dss)
malloc_mutex_postfork_parent(&dss_mtx);
}
@@ -207,7 +191,7 @@ void
chunk_dss_postfork_child(void)
{
if (have_dss)
if (config_dss)
malloc_mutex_postfork_child(&dss_mtx);
}

View File

@@ -1,21 +1,155 @@
#define JEMALLOC_CHUNK_MMAP_C_
#include "jemalloc/internal/jemalloc_internal.h"
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
static void *pages_map(void *addr, size_t size);
static void pages_unmap(void *addr, size_t size);
static void *chunk_alloc_mmap_slow(size_t size, size_t alignment,
bool *zero);
/******************************************************************************/
static void *
chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero, bool *commit)
pages_map(void *addr, size_t size)
{
void *ret;
size_t alloc_size;
assert(size != 0);
#ifdef _WIN32
/*
* If VirtualAlloc can't allocate at the given address when one is
* given, it fails and returns NULL.
*/
ret = VirtualAlloc(addr, size, MEM_COMMIT | MEM_RESERVE,
PAGE_READWRITE);
#else
/*
* We don't use MAP_FIXED here, because it can cause the *replacement*
* of existing mappings, and we only want to create new mappings.
*/
ret = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
-1, 0);
assert(ret != NULL);
if (ret == MAP_FAILED)
ret = NULL;
else if (addr != NULL && ret != addr) {
/*
* We succeeded in mapping memory, but not in the right place.
*/
if (munmap(ret, size) == -1) {
char buf[BUFERROR_BUF];
buferror(get_errno(), buf, sizeof(buf));
malloc_printf("<jemalloc: Error in munmap(): %s\n",
buf);
if (opt_abort)
abort();
}
ret = NULL;
}
#endif
assert(ret == NULL || (addr == NULL && ret != addr)
|| (addr != NULL && ret == addr));
return (ret);
}
static void
pages_unmap(void *addr, size_t size)
{
#ifdef _WIN32
if (VirtualFree(addr, 0, MEM_RELEASE) == 0)
#else
if (munmap(addr, size) == -1)
#endif
{
char buf[BUFERROR_BUF];
buferror(get_errno(), buf, sizeof(buf));
malloc_printf("<jemalloc>: Error in "
#ifdef _WIN32
"VirtualFree"
#else
"munmap"
#endif
"(): %s\n", buf);
if (opt_abort)
abort();
}
}
static void *
pages_trim(void *addr, size_t alloc_size, size_t leadsize, size_t size)
{
void *ret = (void *)((uintptr_t)addr + leadsize);
assert(alloc_size >= leadsize + size);
#ifdef _WIN32
{
void *new_addr;
pages_unmap(addr, alloc_size);
new_addr = pages_map(ret, size);
if (new_addr == ret)
return (ret);
if (new_addr)
pages_unmap(new_addr, size);
return (NULL);
}
#else
{
size_t trailsize = alloc_size - leadsize - size;
if (leadsize != 0)
pages_unmap(addr, leadsize);
if (trailsize != 0)
pages_unmap((void *)((uintptr_t)ret + size), trailsize);
return (ret);
}
#endif
}
bool
pages_purge(void *addr, size_t length)
{
bool unzeroed;
#ifdef _WIN32
VirtualAlloc(addr, length, MEM_RESET, PAGE_READWRITE);
unzeroed = true;
#else
# ifdef JEMALLOC_PURGE_MADVISE_DONTNEED
# define JEMALLOC_MADV_PURGE MADV_DONTNEED
# define JEMALLOC_MADV_ZEROS true
# elif defined(JEMALLOC_PURGE_MADVISE_FREE)
# define JEMALLOC_MADV_PURGE MADV_FREE
# define JEMALLOC_MADV_ZEROS false
# else
# error "No method defined for purging unused dirty pages."
# endif
int err = madvise(addr, length, JEMALLOC_MADV_PURGE);
unzeroed = (JEMALLOC_MADV_ZEROS == false || err != 0);
# undef JEMALLOC_MADV_PURGE
# undef JEMALLOC_MADV_ZEROS
#endif
return (unzeroed);
}
static void *
chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero)
{
void *ret, *pages;
size_t alloc_size, leadsize;
alloc_size = size + alignment - PAGE;
/* Beware size_t wrap-around. */
if (alloc_size < size)
return (NULL);
do {
void *pages;
size_t leadsize;
pages = pages_map(NULL, alloc_size);
if (pages == NULL)
return (NULL);
@@ -26,14 +160,11 @@ chunk_alloc_mmap_slow(size_t size, size_t alignment, bool *zero, bool *commit)
assert(ret != NULL);
*zero = true;
if (!*commit)
*commit = pages_decommit(ret, size);
return (ret);
}
void *
chunk_alloc_mmap(void *new_addr, size_t size, size_t alignment, bool *zero,
bool *commit)
chunk_alloc_mmap(size_t size, size_t alignment, bool *zero)
{
void *ret;
size_t offset;
@@ -54,29 +185,26 @@ chunk_alloc_mmap(void *new_addr, size_t size, size_t alignment, bool *zero,
assert(alignment != 0);
assert((alignment & chunksize_mask) == 0);
ret = pages_map(new_addr, size);
if (ret == NULL || ret == new_addr)
return (ret);
assert(new_addr == NULL);
ret = pages_map(NULL, size);
if (ret == NULL)
return (NULL);
offset = ALIGNMENT_ADDR2OFFSET(ret, alignment);
if (offset != 0) {
pages_unmap(ret, size);
return (chunk_alloc_mmap_slow(size, alignment, zero, commit));
return (chunk_alloc_mmap_slow(size, alignment, zero));
}
assert(ret != NULL);
*zero = true;
if (!*commit)
*commit = pages_decommit(ret, size);
return (ret);
}
bool
chunk_dalloc_mmap(void *chunk, size_t size)
chunk_dealloc_mmap(void *chunk, size_t size)
{
if (config_munmap)
pages_unmap(chunk, size);
return (!config_munmap);
return (config_munmap == false);
}

View File

@@ -40,8 +40,8 @@
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
static bool ckh_grow(tsd_t *tsd, ckh_t *ckh);
static void ckh_shrink(tsd_t *tsd, ckh_t *ckh);
static bool ckh_grow(ckh_t *ckh);
static void ckh_shrink(ckh_t *ckh);
/******************************************************************************/
@@ -99,7 +99,7 @@ ckh_try_bucket_insert(ckh_t *ckh, size_t bucket, const void *key,
* Cycle through the cells in the bucket, starting at a random position.
* The randomness avoids worst-case search overhead as buckets fill up.
*/
offset = (unsigned)prng_lg_range(&ckh->prng_state, LG_CKH_BUCKET_CELLS);
prng32(offset, LG_CKH_BUCKET_CELLS, ckh->prng_state, CKH_A, CKH_C);
for (i = 0; i < (ZU(1) << LG_CKH_BUCKET_CELLS); i++) {
cell = &ckh->tab[(bucket << LG_CKH_BUCKET_CELLS) +
((i + offset) & ((ZU(1) << LG_CKH_BUCKET_CELLS) - 1))];
@@ -141,8 +141,7 @@ ckh_evict_reloc_insert(ckh_t *ckh, size_t argbucket, void const **argkey,
* were an item for which both hashes indicated the same
* bucket.
*/
i = (unsigned)prng_lg_range(&ckh->prng_state,
LG_CKH_BUCKET_CELLS);
prng32(i, LG_CKH_BUCKET_CELLS, ckh->prng_state, CKH_A, CKH_C);
cell = &ckh->tab[(bucket << LG_CKH_BUCKET_CELLS) + i];
assert(cell->key != NULL);
@@ -186,7 +185,7 @@ ckh_evict_reloc_insert(ckh_t *ckh, size_t argbucket, void const **argkey,
}
bucket = tbucket;
if (!ckh_try_bucket_insert(ckh, bucket, key, data))
if (ckh_try_bucket_insert(ckh, bucket, key, data) == false)
return (false);
}
}
@@ -202,12 +201,12 @@ ckh_try_insert(ckh_t *ckh, void const**argkey, void const**argdata)
/* Try to insert in primary bucket. */
bucket = hashes[0] & ((ZU(1) << ckh->lg_curbuckets) - 1);
if (!ckh_try_bucket_insert(ckh, bucket, key, data))
if (ckh_try_bucket_insert(ckh, bucket, key, data) == false)
return (false);
/* Try to insert in secondary bucket. */
bucket = hashes[1] & ((ZU(1) << ckh->lg_curbuckets) - 1);
if (!ckh_try_bucket_insert(ckh, bucket, key, data))
if (ckh_try_bucket_insert(ckh, bucket, key, data) == false)
return (false);
/*
@@ -244,11 +243,12 @@ ckh_rebuild(ckh_t *ckh, ckhc_t *aTab)
}
static bool
ckh_grow(tsd_t *tsd, ckh_t *ckh)
ckh_grow(ckh_t *ckh)
{
bool ret;
ckhc_t *tab, *ttab;
unsigned lg_prevbuckets, lg_curcells;
size_t lg_curcells;
unsigned lg_prevbuckets;
#ifdef CKH_COUNT
ckh->ngrows++;
@@ -266,12 +266,11 @@ ckh_grow(tsd_t *tsd, ckh_t *ckh)
lg_curcells++;
usize = sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE);
if (unlikely(usize == 0 || usize > HUGE_MAXCLASS)) {
if (usize == 0) {
ret = true;
goto label_return;
}
tab = (ckhc_t *)ipallocztm(tsd, usize, CACHELINE, true, NULL,
true, NULL);
tab = (ckhc_t *)ipalloc(usize, CACHELINE, true);
if (tab == NULL) {
ret = true;
goto label_return;
@@ -282,13 +281,13 @@ ckh_grow(tsd_t *tsd, ckh_t *ckh)
tab = ttab;
ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS;
if (!ckh_rebuild(ckh, tab)) {
idalloctm(tsd, tab, tcache_get(tsd, false), true, true);
if (ckh_rebuild(ckh, tab) == false) {
idalloc(tab);
break;
}
/* Rebuilding failed, so back out partially rebuilt table. */
idalloctm(tsd, ckh->tab, tcache_get(tsd, false), true, true);
idalloc(ckh->tab);
ckh->tab = tab;
ckh->lg_curbuckets = lg_prevbuckets;
}
@@ -299,11 +298,11 @@ label_return:
}
static void
ckh_shrink(tsd_t *tsd, ckh_t *ckh)
ckh_shrink(ckh_t *ckh)
{
ckhc_t *tab, *ttab;
size_t usize;
unsigned lg_prevbuckets, lg_curcells;
size_t lg_curcells, usize;
unsigned lg_prevbuckets;
/*
* It is possible (though unlikely, given well behaved hashes) that the
@@ -312,10 +311,9 @@ ckh_shrink(tsd_t *tsd, ckh_t *ckh)
lg_prevbuckets = ckh->lg_curbuckets;
lg_curcells = ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS - 1;
usize = sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE);
if (unlikely(usize == 0 || usize > HUGE_MAXCLASS))
if (usize == 0)
return;
tab = (ckhc_t *)ipallocztm(tsd, usize, CACHELINE, true, NULL, true,
NULL);
tab = (ckhc_t *)ipalloc(usize, CACHELINE, true);
if (tab == NULL) {
/*
* An OOM error isn't worth propagating, since it doesn't
@@ -329,8 +327,8 @@ ckh_shrink(tsd_t *tsd, ckh_t *ckh)
tab = ttab;
ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS;
if (!ckh_rebuild(ckh, tab)) {
idalloctm(tsd, tab, tcache_get(tsd, false), true, true);
if (ckh_rebuild(ckh, tab) == false) {
idalloc(tab);
#ifdef CKH_COUNT
ckh->nshrinks++;
#endif
@@ -338,7 +336,7 @@ ckh_shrink(tsd_t *tsd, ckh_t *ckh)
}
/* Rebuilding failed, so back out partially rebuilt table. */
idalloctm(tsd, ckh->tab, tcache_get(tsd, false), true, true);
idalloc(ckh->tab);
ckh->tab = tab;
ckh->lg_curbuckets = lg_prevbuckets;
#ifdef CKH_COUNT
@@ -347,8 +345,7 @@ ckh_shrink(tsd_t *tsd, ckh_t *ckh)
}
bool
ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh_keycomp_t *keycomp)
ckh_new(ckh_t *ckh, size_t minitems, ckh_hash_t *hash, ckh_keycomp_t *keycomp)
{
bool ret;
size_t mincells, usize;
@@ -369,10 +366,10 @@ ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh->count = 0;
/*
* Find the minimum power of 2 that is large enough to fit minitems
* Find the minimum power of 2 that is large enough to fit aBaseCount
* entries. We are using (2+,2) cuckoo hashing, which has an expected
* maximum load factor of at least ~0.86, so 0.75 is a conservative load
* factor that will typically allow mincells items to fit without ever
* factor that will typically allow 2^aLgMinItems to fit without ever
* growing the table.
*/
assert(LG_CKH_BUCKET_CELLS > 0);
@@ -387,12 +384,11 @@ ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh->keycomp = keycomp;
usize = sa2u(sizeof(ckhc_t) << lg_mincells, CACHELINE);
if (unlikely(usize == 0 || usize > HUGE_MAXCLASS)) {
if (usize == 0) {
ret = true;
goto label_return;
}
ckh->tab = (ckhc_t *)ipallocztm(tsd, usize, CACHELINE, true, NULL, true,
NULL);
ckh->tab = (ckhc_t *)ipalloc(usize, CACHELINE, true);
if (ckh->tab == NULL) {
ret = true;
goto label_return;
@@ -404,16 +400,16 @@ label_return:
}
void
ckh_delete(tsd_t *tsd, ckh_t *ckh)
ckh_delete(ckh_t *ckh)
{
assert(ckh != NULL);
#ifdef CKH_VERBOSE
malloc_printf(
"%s(%p): ngrows: %"FMTu64", nshrinks: %"FMTu64","
" nshrinkfails: %"FMTu64", ninserts: %"FMTu64","
" nrelocs: %"FMTu64"\n", __func__, ckh,
"%s(%p): ngrows: %"PRIu64", nshrinks: %"PRIu64","
" nshrinkfails: %"PRIu64", ninserts: %"PRIu64","
" nrelocs: %"PRIu64"\n", __func__, ckh,
(unsigned long long)ckh->ngrows,
(unsigned long long)ckh->nshrinks,
(unsigned long long)ckh->nshrinkfails,
@@ -421,7 +417,7 @@ ckh_delete(tsd_t *tsd, ckh_t *ckh)
(unsigned long long)ckh->nrelocs);
#endif
idalloctm(tsd, ckh->tab, tcache_get(tsd, false), true, true);
idalloc(ckh->tab);
if (config_debug)
memset(ckh, 0x5a, sizeof(ckh_t));
}
@@ -456,7 +452,7 @@ ckh_iter(ckh_t *ckh, size_t *tabind, void **key, void **data)
}
bool
ckh_insert(tsd_t *tsd, ckh_t *ckh, const void *key, const void *data)
ckh_insert(ckh_t *ckh, const void *key, const void *data)
{
bool ret;
@@ -468,7 +464,7 @@ ckh_insert(tsd_t *tsd, ckh_t *ckh, const void *key, const void *data)
#endif
while (ckh_try_insert(ckh, &key, &data)) {
if (ckh_grow(tsd, ckh)) {
if (ckh_grow(ckh)) {
ret = true;
goto label_return;
}
@@ -480,8 +476,7 @@ label_return:
}
bool
ckh_remove(tsd_t *tsd, ckh_t *ckh, const void *searchkey, void **key,
void **data)
ckh_remove(ckh_t *ckh, const void *searchkey, void **key, void **data)
{
size_t cell;
@@ -502,7 +497,7 @@ ckh_remove(tsd_t *tsd, ckh_t *ckh, const void *searchkey, void **key,
+ LG_CKH_BUCKET_CELLS - 2)) && ckh->lg_curbuckets
> ckh->lg_minbuckets) {
/* Ignore error due to OOM. */
ckh_shrink(tsd, ckh);
ckh_shrink(ckh);
}
return (false);

1346
src/ctl.c

File diff suppressed because it is too large Load Diff

View File

@@ -3,32 +3,17 @@
/******************************************************************************/
JEMALLOC_INLINE_C size_t
extent_quantize(size_t size)
{
/*
* Round down to the nearest chunk size that can actually be requested
* during normal huge allocation.
*/
return (index2size(size2index(size + 1) - 1));
}
JEMALLOC_INLINE_C int
extent_szad_comp(const extent_node_t *a, const extent_node_t *b)
static inline int
extent_szad_comp(extent_node_t *a, extent_node_t *b)
{
int ret;
size_t a_qsize = extent_quantize(extent_node_size_get(a));
size_t b_qsize = extent_quantize(extent_node_size_get(b));
size_t a_size = a->size;
size_t b_size = b->size;
/*
* Compare based on quantized size rather than size, in order to sort
* equally useful extents only by address.
*/
ret = (a_qsize > b_qsize) - (a_qsize < b_qsize);
ret = (a_size > b_size) - (a_size < b_size);
if (ret == 0) {
uintptr_t a_addr = (uintptr_t)extent_node_addr_get(a);
uintptr_t b_addr = (uintptr_t)extent_node_addr_get(b);
uintptr_t a_addr = (uintptr_t)a->addr;
uintptr_t b_addr = (uintptr_t)b->addr;
ret = (a_addr > b_addr) - (a_addr < b_addr);
}
@@ -37,17 +22,18 @@ extent_szad_comp(const extent_node_t *a, const extent_node_t *b)
}
/* Generate red-black tree functions. */
rb_gen(, extent_tree_szad_, extent_tree_t, extent_node_t, szad_link,
rb_gen(, extent_tree_szad_, extent_tree_t, extent_node_t, link_szad,
extent_szad_comp)
JEMALLOC_INLINE_C int
extent_ad_comp(const extent_node_t *a, const extent_node_t *b)
static inline int
extent_ad_comp(extent_node_t *a, extent_node_t *b)
{
uintptr_t a_addr = (uintptr_t)extent_node_addr_get(a);
uintptr_t b_addr = (uintptr_t)extent_node_addr_get(b);
uintptr_t a_addr = (uintptr_t)a->addr;
uintptr_t b_addr = (uintptr_t)b->addr;
return ((a_addr > b_addr) - (a_addr < b_addr));
}
/* Generate red-black tree functions. */
rb_gen(, extent_tree_ad_, extent_tree_t, extent_node_t, ad_link, extent_ad_comp)
rb_gen(, extent_tree_ad_, extent_tree_t, extent_node_t, link_ad,
extent_ad_comp)

View File

@@ -2,63 +2,44 @@
#include "jemalloc/internal/jemalloc_internal.h"
/******************************************************************************/
/* Data. */
static extent_node_t *
huge_node_get(const void *ptr)
{
extent_node_t *node;
uint64_t huge_nmalloc;
uint64_t huge_ndalloc;
size_t huge_allocated;
node = chunk_lookup(ptr, true);
assert(!extent_node_achunk_get(node));
malloc_mutex_t huge_mtx;
return (node);
}
/******************************************************************************/
static bool
huge_node_set(const void *ptr, extent_node_t *node)
/* Tree of chunks that are stand-alone huge allocations. */
static extent_tree_t huge;
void *
huge_malloc(size_t size, bool zero, dss_prec_t dss_prec)
{
assert(extent_node_addr_get(node) == ptr);
assert(!extent_node_achunk_get(node));
return (chunk_register(ptr, node));
}
static void
huge_node_unset(const void *ptr, const extent_node_t *node)
{
chunk_deregister(ptr, node);
return (huge_palloc(size, chunksize, zero, dss_prec));
}
void *
huge_malloc(tsd_t *tsd, arena_t *arena, size_t usize, bool zero,
tcache_t *tcache)
{
assert(usize == s2u(usize));
return (huge_palloc(tsd, arena, usize, chunksize, zero, tcache));
}
void *
huge_palloc(tsd_t *tsd, arena_t *arena, size_t usize, size_t alignment,
bool zero, tcache_t *tcache)
huge_palloc(size_t size, size_t alignment, bool zero, dss_prec_t dss_prec)
{
void *ret;
size_t ausize;
size_t csize;
extent_node_t *node;
bool is_zeroed;
/* Allocate one or more contiguous chunks for this request. */
ausize = sa2u(usize, alignment);
if (unlikely(ausize == 0 || ausize > HUGE_MAXCLASS))
csize = CHUNK_CEILING(size);
if (csize == 0) {
/* size is large enough to cause size_t wrap-around. */
return (NULL);
assert(ausize >= chunksize);
}
/* Allocate an extent node with which to track the chunk. */
node = ipallocztm(tsd, CACHELINE_CEILING(sizeof(extent_node_t)),
CACHELINE, false, tcache, true, arena);
node = base_node_alloc();
if (node == NULL)
return (NULL);
@@ -67,34 +48,145 @@ huge_palloc(tsd_t *tsd, arena_t *arena, size_t usize, size_t alignment,
* it is possible to make correct junk/zero fill decisions below.
*/
is_zeroed = zero;
arena = arena_choose(tsd, arena);
if (unlikely(arena == NULL) || (ret = arena_chunk_alloc_huge(arena,
usize, alignment, &is_zeroed)) == NULL) {
idalloctm(tsd, node, tcache, true, true);
return (NULL);
}
extent_node_init(node, arena, ret, usize, is_zeroed, true);
if (huge_node_set(ret, node)) {
arena_chunk_dalloc_huge(arena, ret, usize);
idalloctm(tsd, node, tcache, true, true);
ret = chunk_alloc(csize, alignment, false, &is_zeroed, dss_prec);
if (ret == NULL) {
base_node_dealloc(node);
return (NULL);
}
/* Insert node into huge. */
malloc_mutex_lock(&arena->huge_mtx);
ql_elm_new(node, ql_link);
ql_tail_insert(&arena->huge, node, ql_link);
malloc_mutex_unlock(&arena->huge_mtx);
node->addr = ret;
node->size = csize;
if (zero || (config_fill && unlikely(opt_zero))) {
if (!is_zeroed)
memset(ret, 0, usize);
} else if (config_fill && unlikely(opt_junk_alloc))
memset(ret, 0xa5, usize);
malloc_mutex_lock(&huge_mtx);
extent_tree_ad_insert(&huge, node);
if (config_stats) {
stats_cactive_add(csize);
huge_nmalloc++;
huge_allocated += csize;
}
malloc_mutex_unlock(&huge_mtx);
arena_decay_tick(tsd, arena);
if (config_fill && zero == false) {
if (opt_junk)
memset(ret, 0xa5, csize);
else if (opt_zero && is_zeroed == false)
memset(ret, 0, csize);
}
return (ret);
}
bool
huge_ralloc_no_move(void *ptr, size_t oldsize, size_t size, size_t extra)
{
/*
* Avoid moving the allocation if the size class can be left the same.
*/
if (oldsize > arena_maxclass
&& CHUNK_CEILING(oldsize) >= CHUNK_CEILING(size)
&& CHUNK_CEILING(oldsize) <= CHUNK_CEILING(size+extra)) {
assert(CHUNK_CEILING(oldsize) == oldsize);
return (false);
}
/* Reallocation would require a move. */
return (true);
}
void *
huge_ralloc(void *ptr, size_t oldsize, size_t size, size_t extra,
size_t alignment, bool zero, bool try_tcache_dalloc, dss_prec_t dss_prec)
{
void *ret;
size_t copysize;
/* Try to avoid moving the allocation. */
if (huge_ralloc_no_move(ptr, oldsize, size, extra) == false)
return (ptr);
/*
* size and oldsize are different enough that we need to use a
* different size class. In that case, fall back to allocating new
* space and copying.
*/
if (alignment > chunksize)
ret = huge_palloc(size + extra, alignment, zero, dss_prec);
else
ret = huge_malloc(size + extra, zero, dss_prec);
if (ret == NULL) {
if (extra == 0)
return (NULL);
/* Try again, this time without extra. */
if (alignment > chunksize)
ret = huge_palloc(size, alignment, zero, dss_prec);
else
ret = huge_malloc(size, zero, dss_prec);
if (ret == NULL)
return (NULL);
}
/*
* Copy at most size bytes (not size+extra), since the caller has no
* expectation that the extra bytes will be reliably preserved.
*/
copysize = (size < oldsize) ? size : oldsize;
#ifdef JEMALLOC_MREMAP
/*
* Use mremap(2) if this is a huge-->huge reallocation, and neither the
* source nor the destination are in dss.
*/
if (oldsize >= chunksize && (config_dss == false || (chunk_in_dss(ptr)
== false && chunk_in_dss(ret) == false))) {
size_t newsize = huge_salloc(ret);
/*
* Remove ptr from the tree of huge allocations before
* performing the remap operation, in order to avoid the
* possibility of another thread acquiring that mapping before
* this one removes it from the tree.
*/
huge_dalloc(ptr, false);
if (mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE|MREMAP_FIXED,
ret) == MAP_FAILED) {
/*
* Assuming no chunk management bugs in the allocator,
* the only documented way an error can occur here is
* if the application changed the map type for a
* portion of the old allocation. This is firmly in
* undefined behavior territory, so write a diagnostic
* message, and optionally abort.
*/
char buf[BUFERROR_BUF];
buferror(get_errno(), buf, sizeof(buf));
malloc_printf("<jemalloc>: Error in mremap(): %s\n",
buf);
if (opt_abort)
abort();
memcpy(ret, ptr, copysize);
chunk_dealloc_mmap(ptr, oldsize);
} else if (config_fill && zero == false && opt_junk && oldsize
< newsize) {
/*
* mremap(2) clobbers the original mapping, so
* junk/zero filling is not preserved. There is no
* need to zero fill here, since any trailing
* uninititialized memory is demand-zeroed by the
* kernel, but junk filling must be redone.
*/
memset(ret + oldsize, 0xa5, newsize - oldsize);
}
} else
#endif
{
memcpy(ret, ptr, copysize);
iqalloct(ptr, try_tcache_dalloc);
}
return (ret);
}
@@ -106,12 +198,12 @@ static void
huge_dalloc_junk(void *ptr, size_t usize)
{
if (config_fill && have_dss && unlikely(opt_junk_free)) {
if (config_fill && config_dss && opt_junk) {
/*
* Only bother junk filling if the chunk isn't about to be
* unmapped.
*/
if (!config_munmap || (have_dss && chunk_in_dss(ptr)))
if (config_munmap == false || (config_dss && chunk_in_dss(ptr)))
memset(ptr, 0x5a, usize);
}
}
@@ -121,328 +213,135 @@ huge_dalloc_junk(void *ptr, size_t usize)
huge_dalloc_junk_t *huge_dalloc_junk = JEMALLOC_N(huge_dalloc_junk_impl);
#endif
static void
huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min,
size_t usize_max, bool zero)
{
size_t usize, usize_next;
extent_node_t *node;
arena_t *arena;
chunk_hooks_t chunk_hooks = CHUNK_HOOKS_INITIALIZER;
bool pre_zeroed, post_zeroed;
/* Increase usize to incorporate extra. */
for (usize = usize_min; usize < usize_max && (usize_next = s2u(usize+1))
<= oldsize; usize = usize_next)
; /* Do nothing. */
if (oldsize == usize)
return;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
pre_zeroed = extent_node_zeroed_get(node);
/* Fill if necessary (shrinking). */
if (oldsize > usize) {
size_t sdiff = oldsize - usize;
if (config_fill && unlikely(opt_junk_free)) {
memset((void *)((uintptr_t)ptr + usize), 0x5a, sdiff);
post_zeroed = false;
} else {
post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
ptr, CHUNK_CEILING(oldsize), usize, sdiff);
}
} else
post_zeroed = pre_zeroed;
malloc_mutex_lock(&arena->huge_mtx);
/* Update the size of the huge allocation. */
assert(extent_node_size_get(node) != usize);
extent_node_size_set(node, usize);
/* Update zeroed. */
extent_node_zeroed_set(node, post_zeroed);
malloc_mutex_unlock(&arena->huge_mtx);
arena_chunk_ralloc_huge_similar(arena, ptr, oldsize, usize);
/* Fill if necessary (growing). */
if (oldsize < usize) {
if (zero || (config_fill && unlikely(opt_zero))) {
if (!pre_zeroed) {
memset((void *)((uintptr_t)ptr + oldsize), 0,
usize - oldsize);
}
} else if (config_fill && unlikely(opt_junk_alloc)) {
memset((void *)((uintptr_t)ptr + oldsize), 0xa5, usize -
oldsize);
}
}
}
static bool
huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize)
{
extent_node_t *node;
arena_t *arena;
chunk_hooks_t chunk_hooks;
size_t cdiff;
bool pre_zeroed, post_zeroed;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
pre_zeroed = extent_node_zeroed_get(node);
chunk_hooks = chunk_hooks_get(arena);
assert(oldsize > usize);
/* Split excess chunks. */
cdiff = CHUNK_CEILING(oldsize) - CHUNK_CEILING(usize);
if (cdiff != 0 && chunk_hooks.split(ptr, CHUNK_CEILING(oldsize),
CHUNK_CEILING(usize), cdiff, true, arena->ind))
return (true);
if (oldsize > usize) {
size_t sdiff = oldsize - usize;
if (config_fill && unlikely(opt_junk_free)) {
huge_dalloc_junk((void *)((uintptr_t)ptr + usize),
sdiff);
post_zeroed = false;
} else {
post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
CHUNK_ADDR2BASE((uintptr_t)ptr + usize),
CHUNK_CEILING(oldsize),
CHUNK_ADDR2OFFSET((uintptr_t)ptr + usize), sdiff);
}
} else
post_zeroed = pre_zeroed;
malloc_mutex_lock(&arena->huge_mtx);
/* Update the size of the huge allocation. */
extent_node_size_set(node, usize);
/* Update zeroed. */
extent_node_zeroed_set(node, post_zeroed);
malloc_mutex_unlock(&arena->huge_mtx);
/* Zap the excess chunks. */
arena_chunk_ralloc_huge_shrink(arena, ptr, oldsize, usize);
return (false);
}
static bool
huge_ralloc_no_move_expand(void *ptr, size_t oldsize, size_t usize, bool zero) {
extent_node_t *node;
arena_t *arena;
bool is_zeroed_subchunk, is_zeroed_chunk;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
malloc_mutex_lock(&arena->huge_mtx);
is_zeroed_subchunk = extent_node_zeroed_get(node);
malloc_mutex_unlock(&arena->huge_mtx);
/*
* Copy zero into is_zeroed_chunk and pass the copy to chunk_alloc(), so
* that it is possible to make correct junk/zero fill decisions below.
*/
is_zeroed_chunk = zero;
if (arena_chunk_ralloc_huge_expand(arena, ptr, oldsize, usize,
&is_zeroed_chunk))
return (true);
malloc_mutex_lock(&arena->huge_mtx);
/* Update the size of the huge allocation. */
extent_node_size_set(node, usize);
malloc_mutex_unlock(&arena->huge_mtx);
if (zero || (config_fill && unlikely(opt_zero))) {
if (!is_zeroed_subchunk) {
memset((void *)((uintptr_t)ptr + oldsize), 0,
CHUNK_CEILING(oldsize) - oldsize);
}
if (!is_zeroed_chunk) {
memset((void *)((uintptr_t)ptr +
CHUNK_CEILING(oldsize)), 0, usize -
CHUNK_CEILING(oldsize));
}
} else if (config_fill && unlikely(opt_junk_alloc)) {
memset((void *)((uintptr_t)ptr + oldsize), 0xa5, usize -
oldsize);
}
return (false);
}
bool
huge_ralloc_no_move(tsd_t *tsd, void *ptr, size_t oldsize, size_t usize_min,
size_t usize_max, bool zero)
{
assert(s2u(oldsize) == oldsize);
/* The following should have been caught by callers. */
assert(usize_min > 0 && usize_max <= HUGE_MAXCLASS);
/* Both allocations must be huge to avoid a move. */
if (oldsize < chunksize || usize_max < chunksize)
return (true);
if (CHUNK_CEILING(usize_max) > CHUNK_CEILING(oldsize)) {
/* Attempt to expand the allocation in-place. */
if (!huge_ralloc_no_move_expand(ptr, oldsize, usize_max,
zero)) {
arena_decay_tick(tsd, huge_aalloc(ptr));
return (false);
}
/* Try again, this time with usize_min. */
if (usize_min < usize_max && CHUNK_CEILING(usize_min) >
CHUNK_CEILING(oldsize) && huge_ralloc_no_move_expand(ptr,
oldsize, usize_min, zero)) {
arena_decay_tick(tsd, huge_aalloc(ptr));
return (false);
}
}
/*
* Avoid moving the allocation if the existing chunk size accommodates
* the new size.
*/
if (CHUNK_CEILING(oldsize) >= CHUNK_CEILING(usize_min)
&& CHUNK_CEILING(oldsize) <= CHUNK_CEILING(usize_max)) {
huge_ralloc_no_move_similar(ptr, oldsize, usize_min, usize_max,
zero);
arena_decay_tick(tsd, huge_aalloc(ptr));
return (false);
}
/* Attempt to shrink the allocation in-place. */
if (CHUNK_CEILING(oldsize) > CHUNK_CEILING(usize_max)) {
if (!huge_ralloc_no_move_shrink(ptr, oldsize, usize_max)) {
arena_decay_tick(tsd, huge_aalloc(ptr));
return (false);
}
}
return (true);
}
static void *
huge_ralloc_move_helper(tsd_t *tsd, arena_t *arena, size_t usize,
size_t alignment, bool zero, tcache_t *tcache)
{
if (alignment <= chunksize)
return (huge_malloc(tsd, arena, usize, zero, tcache));
return (huge_palloc(tsd, arena, usize, alignment, zero, tcache));
}
void *
huge_ralloc(tsd_t *tsd, arena_t *arena, void *ptr, size_t oldsize, size_t usize,
size_t alignment, bool zero, tcache_t *tcache)
{
void *ret;
size_t copysize;
/* The following should have been caught by callers. */
assert(usize > 0 && usize <= HUGE_MAXCLASS);
/* Try to avoid moving the allocation. */
if (!huge_ralloc_no_move(tsd, ptr, oldsize, usize, usize, zero))
return (ptr);
/*
* usize and oldsize are different enough that we need to use a
* different size class. In that case, fall back to allocating new
* space and copying.
*/
ret = huge_ralloc_move_helper(tsd, arena, usize, alignment, zero,
tcache);
if (ret == NULL)
return (NULL);
copysize = (usize < oldsize) ? usize : oldsize;
memcpy(ret, ptr, copysize);
isqalloc(tsd, ptr, oldsize, tcache);
return (ret);
}
void
huge_dalloc(tsd_t *tsd, void *ptr, tcache_t *tcache)
huge_dalloc(void *ptr, bool unmap)
{
extent_node_t *node;
arena_t *arena;
extent_node_t *node, key;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
huge_node_unset(ptr, node);
malloc_mutex_lock(&arena->huge_mtx);
ql_remove(&arena->huge, node, ql_link);
malloc_mutex_unlock(&arena->huge_mtx);
malloc_mutex_lock(&huge_mtx);
huge_dalloc_junk(extent_node_addr_get(node),
extent_node_size_get(node));
arena_chunk_dalloc_huge(extent_node_arena_get(node),
extent_node_addr_get(node), extent_node_size_get(node));
idalloctm(tsd, node, tcache, true, true);
/* Extract from tree of huge allocations. */
key.addr = ptr;
node = extent_tree_ad_search(&huge, &key);
assert(node != NULL);
assert(node->addr == ptr);
extent_tree_ad_remove(&huge, node);
arena_decay_tick(tsd, arena);
}
if (config_stats) {
stats_cactive_sub(node->size);
huge_ndalloc++;
huge_allocated -= node->size;
}
arena_t *
huge_aalloc(const void *ptr)
{
malloc_mutex_unlock(&huge_mtx);
return (extent_node_arena_get(huge_node_get(ptr)));
if (unmap)
huge_dalloc_junk(node->addr, node->size);
chunk_dealloc(node->addr, node->size, unmap);
base_node_dealloc(node);
}
size_t
huge_salloc(const void *ptr)
{
size_t size;
extent_node_t *node;
arena_t *arena;
size_t ret;
extent_node_t *node, key;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
malloc_mutex_lock(&arena->huge_mtx);
size = extent_node_size_get(node);
malloc_mutex_unlock(&arena->huge_mtx);
malloc_mutex_lock(&huge_mtx);
return (size);
/* Extract from tree of huge allocations. */
key.addr = __DECONST(void *, ptr);
node = extent_tree_ad_search(&huge, &key);
assert(node != NULL);
ret = node->size;
malloc_mutex_unlock(&huge_mtx);
return (ret);
}
prof_tctx_t *
huge_prof_tctx_get(const void *ptr)
dss_prec_t
huge_dss_prec_get(arena_t *arena)
{
prof_tctx_t *tctx;
extent_node_t *node;
arena_t *arena;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
malloc_mutex_lock(&arena->huge_mtx);
tctx = extent_node_prof_tctx_get(node);
malloc_mutex_unlock(&arena->huge_mtx);
return (arena_dss_prec_get(choose_arena(arena)));
}
return (tctx);
prof_ctx_t *
huge_prof_ctx_get(const void *ptr)
{
prof_ctx_t *ret;
extent_node_t *node, key;
malloc_mutex_lock(&huge_mtx);
/* Extract from tree of huge allocations. */
key.addr = __DECONST(void *, ptr);
node = extent_tree_ad_search(&huge, &key);
assert(node != NULL);
ret = node->prof_ctx;
malloc_mutex_unlock(&huge_mtx);
return (ret);
}
void
huge_prof_tctx_set(const void *ptr, prof_tctx_t *tctx)
huge_prof_ctx_set(const void *ptr, prof_ctx_t *ctx)
{
extent_node_t *node;
arena_t *arena;
extent_node_t *node, key;
node = huge_node_get(ptr);
arena = extent_node_arena_get(node);
malloc_mutex_lock(&arena->huge_mtx);
extent_node_prof_tctx_set(node, tctx);
malloc_mutex_unlock(&arena->huge_mtx);
malloc_mutex_lock(&huge_mtx);
/* Extract from tree of huge allocations. */
key.addr = __DECONST(void *, ptr);
node = extent_tree_ad_search(&huge, &key);
assert(node != NULL);
node->prof_ctx = ctx;
malloc_mutex_unlock(&huge_mtx);
}
bool
huge_boot(void)
{
/* Initialize chunks data. */
if (malloc_mutex_init(&huge_mtx))
return (true);
extent_tree_ad_new(&huge);
if (config_stats) {
huge_nmalloc = 0;
huge_ndalloc = 0;
huge_allocated = 0;
}
return (false);
}
void
huge_prof_tctx_reset(const void *ptr)
huge_prefork(void)
{
huge_prof_tctx_set(ptr, (prof_tctx_t *)(uintptr_t)1U);
malloc_mutex_prefork(&huge_mtx);
}
void
huge_postfork_parent(void)
{
malloc_mutex_postfork_parent(&huge_mtx);
}
void
huge_postfork_child(void)
{
malloc_mutex_postfork_child(&huge_mtx);
}

File diff suppressed because it is too large Load Diff

View File

@@ -73,13 +73,9 @@ malloc_mutex_init(malloc_mutex_t *mutex)
{
#ifdef _WIN32
# if _WIN32_WINNT >= 0x0600
InitializeSRWLock(&mutex->lock);
# else
if (!InitializeCriticalSectionAndSpinCount(&mutex->lock,
_CRT_SPINCOUNT))
return (true);
# endif
#elif (defined(JEMALLOC_OSSPIN))
mutex->lock = 0;
#elif (defined(JEMALLOC_MUTEX_INIT_CB))
@@ -87,8 +83,8 @@ malloc_mutex_init(malloc_mutex_t *mutex)
mutex->postponed_next = postponed_mutexes;
postponed_mutexes = mutex;
} else {
if (_pthread_mutex_init_calloc_cb(&mutex->lock,
bootstrap_calloc) != 0)
if (_pthread_mutex_init_calloc_cb(&mutex->lock, base_calloc) !=
0)
return (true);
}
#else
@@ -144,7 +140,7 @@ mutex_boot(void)
postpone_init = false;
while (postponed_mutexes != NULL) {
if (_pthread_mutex_init_calloc_cb(&postponed_mutexes->lock,
bootstrap_calloc) != 0)
base_calloc) != 0)
return (true);
postponed_mutexes = postponed_mutexes->postponed_next;
}

View File

@@ -1,148 +0,0 @@
#include "jemalloc/internal/jemalloc_internal.h"
#define BILLION UINT64_C(1000000000)
void
nstime_init(nstime_t *time, uint64_t ns)
{
time->ns = ns;
}
void
nstime_init2(nstime_t *time, uint64_t sec, uint64_t nsec)
{
time->ns = sec * BILLION + nsec;
}
uint64_t
nstime_ns(const nstime_t *time)
{
return (time->ns);
}
uint64_t
nstime_sec(const nstime_t *time)
{
return (time->ns / BILLION);
}
uint64_t
nstime_nsec(const nstime_t *time)
{
return (time->ns % BILLION);
}
void
nstime_copy(nstime_t *time, const nstime_t *source)
{
*time = *source;
}
int
nstime_compare(const nstime_t *a, const nstime_t *b)
{
return ((a->ns > b->ns) - (a->ns < b->ns));
}
void
nstime_add(nstime_t *time, const nstime_t *addend)
{
assert(UINT64_MAX - time->ns >= addend->ns);
time->ns += addend->ns;
}
void
nstime_subtract(nstime_t *time, const nstime_t *subtrahend)
{
assert(nstime_compare(time, subtrahend) >= 0);
time->ns -= subtrahend->ns;
}
void
nstime_imultiply(nstime_t *time, uint64_t multiplier)
{
assert((((time->ns | multiplier) & (UINT64_MAX << (sizeof(uint64_t) <<
2))) == 0) || ((time->ns * multiplier) / multiplier == time->ns));
time->ns *= multiplier;
}
void
nstime_idivide(nstime_t *time, uint64_t divisor)
{
assert(divisor != 0);
time->ns /= divisor;
}
uint64_t
nstime_divide(const nstime_t *time, const nstime_t *divisor)
{
assert(divisor->ns != 0);
return (time->ns / divisor->ns);
}
#ifdef JEMALLOC_JET
#undef nstime_update
#define nstime_update JEMALLOC_N(nstime_update_impl)
#endif
bool
nstime_update(nstime_t *time)
{
nstime_t old_time;
nstime_copy(&old_time, time);
#ifdef _WIN32
{
FILETIME ft;
uint64_t ticks;
GetSystemTimeAsFileTime(&ft);
ticks = (((uint64_t)ft.dwHighDateTime) << 32) |
ft.dwLowDateTime;
time->ns = ticks * 100;
}
#elif JEMALLOC_CLOCK_GETTIME
{
struct timespec ts;
if (sysconf(_SC_MONOTONIC_CLOCK) > 0)
clock_gettime(CLOCK_MONOTONIC, &ts);
else
clock_gettime(CLOCK_REALTIME, &ts);
time->ns = ts.tv_sec * BILLION + ts.tv_nsec;
}
#else
struct timeval tv;
gettimeofday(&tv, NULL);
time->ns = tv.tv_sec * BILLION + tv.tv_usec * 1000;
#endif
/* Handle non-monotonic clocks. */
if (unlikely(nstime_compare(&old_time, time) > 0)) {
nstime_copy(time, &old_time);
return (true);
}
return (false);
}
#ifdef JEMALLOC_JET
#undef nstime_update
#define nstime_update JEMALLOC_N(nstime_update)
nstime_update_t *nstime_update = JEMALLOC_N(nstime_update_impl);
#endif

View File

@@ -1,173 +0,0 @@
#define JEMALLOC_PAGES_C_
#include "jemalloc/internal/jemalloc_internal.h"
/******************************************************************************/
void *
pages_map(void *addr, size_t size)
{
void *ret;
assert(size != 0);
#ifdef _WIN32
/*
* If VirtualAlloc can't allocate at the given address when one is
* given, it fails and returns NULL.
*/
ret = VirtualAlloc(addr, size, MEM_COMMIT | MEM_RESERVE,
PAGE_READWRITE);
#else
/*
* We don't use MAP_FIXED here, because it can cause the *replacement*
* of existing mappings, and we only want to create new mappings.
*/
ret = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
-1, 0);
assert(ret != NULL);
if (ret == MAP_FAILED)
ret = NULL;
else if (addr != NULL && ret != addr) {
/*
* We succeeded in mapping memory, but not in the right place.
*/
pages_unmap(ret, size);
ret = NULL;
}
#endif
assert(ret == NULL || (addr == NULL && ret != addr)
|| (addr != NULL && ret == addr));
return (ret);
}
void
pages_unmap(void *addr, size_t size)
{
#ifdef _WIN32
if (VirtualFree(addr, 0, MEM_RELEASE) == 0)
#else
if (munmap(addr, size) == -1)
#endif
{
char buf[BUFERROR_BUF];
buferror(get_errno(), buf, sizeof(buf));
malloc_printf("<jemalloc>: Error in "
#ifdef _WIN32
"VirtualFree"
#else
"munmap"
#endif
"(): %s\n", buf);
if (opt_abort)
abort();
}
}
void *
pages_trim(void *addr, size_t alloc_size, size_t leadsize, size_t size)
{
void *ret = (void *)((uintptr_t)addr + leadsize);
assert(alloc_size >= leadsize + size);
#ifdef _WIN32
{
void *new_addr;
pages_unmap(addr, alloc_size);
new_addr = pages_map(ret, size);
if (new_addr == ret)
return (ret);
if (new_addr)
pages_unmap(new_addr, size);
return (NULL);
}
#else
{
size_t trailsize = alloc_size - leadsize - size;
if (leadsize != 0)
pages_unmap(addr, leadsize);
if (trailsize != 0)
pages_unmap((void *)((uintptr_t)ret + size), trailsize);
return (ret);
}
#endif
}
static bool
pages_commit_impl(void *addr, size_t size, bool commit)
{
#ifndef _WIN32
/*
* The following decommit/commit implementation is functional, but
* always disabled because it doesn't add value beyong improved
* debugging (at the cost of extra system calls) on systems that
* overcommit.
*/
if (false) {
int prot = commit ? (PROT_READ | PROT_WRITE) : PROT_NONE;
void *result = mmap(addr, size, prot, MAP_PRIVATE | MAP_ANON |
MAP_FIXED, -1, 0);
if (result == MAP_FAILED)
return (true);
if (result != addr) {
/*
* We succeeded in mapping memory, but not in the right
* place.
*/
pages_unmap(result, size);
return (true);
}
return (false);
}
#endif
return (true);
}
bool
pages_commit(void *addr, size_t size)
{
return (pages_commit_impl(addr, size, true));
}
bool
pages_decommit(void *addr, size_t size)
{
return (pages_commit_impl(addr, size, false));
}
bool
pages_purge(void *addr, size_t size)
{
bool unzeroed;
#ifdef _WIN32
VirtualAlloc(addr, size, MEM_RESET, PAGE_READWRITE);
unzeroed = true;
#elif defined(JEMALLOC_HAVE_MADVISE)
# ifdef JEMALLOC_PURGE_MADVISE_DONTNEED
# define JEMALLOC_MADV_PURGE MADV_DONTNEED
# define JEMALLOC_MADV_ZEROS true
# elif defined(JEMALLOC_PURGE_MADVISE_FREE)
# define JEMALLOC_MADV_PURGE MADV_FREE
# define JEMALLOC_MADV_ZEROS false
# else
# error "No madvise(2) flag defined for purging unused dirty pages."
# endif
int err = madvise(addr, size, JEMALLOC_MADV_PURGE);
unzeroed = (!JEMALLOC_MADV_ZEROS || err != 0);
# undef JEMALLOC_MADV_PURGE
# undef JEMALLOC_MADV_ZEROS
#else
/* Last resort no-op. */
unzeroed = true;
#endif
return (unzeroed);
}

View File

@@ -1,2 +0,0 @@
#define JEMALLOC_PRNG_C_
#include "jemalloc/internal/jemalloc_internal.h"

1884
src/prof.c

File diff suppressed because it is too large Load Diff

View File

@@ -2,35 +2,34 @@
#include "jemalloc/internal/jemalloc_internal.h"
/*
* Quarantine pointers close to NULL are used to encode state information that
* quarantine pointers close to NULL are used to encode state information that
* is used for cleaning up during thread shutdown.
*/
#define QUARANTINE_STATE_REINCARNATED ((quarantine_t *)(uintptr_t)1)
#define QUARANTINE_STATE_PURGATORY ((quarantine_t *)(uintptr_t)2)
#define QUARANTINE_STATE_MAX QUARANTINE_STATE_PURGATORY
/******************************************************************************/
/* Data. */
malloc_tsd_data(, quarantine, quarantine_t *, NULL)
/******************************************************************************/
/* Function prototypes for non-inline static functions. */
static quarantine_t *quarantine_grow(tsd_t *tsd, quarantine_t *quarantine);
static void quarantine_drain_one(tsd_t *tsd, quarantine_t *quarantine);
static void quarantine_drain(tsd_t *tsd, quarantine_t *quarantine,
size_t upper_bound);
static quarantine_t *quarantine_grow(quarantine_t *quarantine);
static void quarantine_drain_one(quarantine_t *quarantine);
static void quarantine_drain(quarantine_t *quarantine, size_t upper_bound);
/******************************************************************************/
static quarantine_t *
quarantine_init(tsd_t *tsd, size_t lg_maxobjs)
quarantine_t *
quarantine_init(size_t lg_maxobjs)
{
quarantine_t *quarantine;
size_t size;
assert(tsd_nominal(tsd));
size = offsetof(quarantine_t, objs) + ((ZU(1) << lg_maxobjs) *
sizeof(quarantine_obj_t));
quarantine = (quarantine_t *)iallocztm(tsd, size, size2index(size),
false, tcache_get(tsd, true), true, NULL, true);
quarantine = (quarantine_t *)imalloc(offsetof(quarantine_t, objs) +
((ZU(1) << lg_maxobjs) * sizeof(quarantine_obj_t)));
if (quarantine == NULL)
return (NULL);
quarantine->curbytes = 0;
@@ -38,36 +37,19 @@ quarantine_init(tsd_t *tsd, size_t lg_maxobjs)
quarantine->first = 0;
quarantine->lg_maxobjs = lg_maxobjs;
quarantine_tsd_set(&quarantine);
return (quarantine);
}
void
quarantine_alloc_hook_work(tsd_t *tsd)
{
quarantine_t *quarantine;
if (!tsd_nominal(tsd))
return;
quarantine = quarantine_init(tsd, LG_MAXOBJS_INIT);
/*
* Check again whether quarantine has been initialized, because
* quarantine_init() may have triggered recursive initialization.
*/
if (tsd_quarantine_get(tsd) == NULL)
tsd_quarantine_set(tsd, quarantine);
else
idalloctm(tsd, quarantine, tcache_get(tsd, false), true, true);
}
static quarantine_t *
quarantine_grow(tsd_t *tsd, quarantine_t *quarantine)
quarantine_grow(quarantine_t *quarantine)
{
quarantine_t *ret;
ret = quarantine_init(tsd, quarantine->lg_maxobjs + 1);
ret = quarantine_init(quarantine->lg_maxobjs + 1);
if (ret == NULL) {
quarantine_drain_one(tsd, quarantine);
quarantine_drain_one(quarantine);
return (quarantine);
}
@@ -89,18 +71,17 @@ quarantine_grow(tsd_t *tsd, quarantine_t *quarantine)
memcpy(&ret->objs[ncopy_a], quarantine->objs, ncopy_b *
sizeof(quarantine_obj_t));
}
idalloctm(tsd, quarantine, tcache_get(tsd, false), true, true);
idalloc(quarantine);
tsd_quarantine_set(tsd, ret);
return (ret);
}
static void
quarantine_drain_one(tsd_t *tsd, quarantine_t *quarantine)
quarantine_drain_one(quarantine_t *quarantine)
{
quarantine_obj_t *obj = &quarantine->objs[quarantine->first];
assert(obj->usize == isalloc(obj->ptr, config_prof));
idalloctm(tsd, obj->ptr, NULL, false, true);
idalloc(obj->ptr);
quarantine->curbytes -= obj->usize;
quarantine->curobjs--;
quarantine->first = (quarantine->first + 1) & ((ZU(1) <<
@@ -108,15 +89,15 @@ quarantine_drain_one(tsd_t *tsd, quarantine_t *quarantine)
}
static void
quarantine_drain(tsd_t *tsd, quarantine_t *quarantine, size_t upper_bound)
quarantine_drain(quarantine_t *quarantine, size_t upper_bound)
{
while (quarantine->curbytes > upper_bound && quarantine->curobjs > 0)
quarantine_drain_one(tsd, quarantine);
quarantine_drain_one(quarantine);
}
void
quarantine(tsd_t *tsd, void *ptr)
quarantine(void *ptr)
{
quarantine_t *quarantine;
size_t usize = isalloc(ptr, config_prof);
@@ -124,8 +105,17 @@ quarantine(tsd_t *tsd, void *ptr)
cassert(config_fill);
assert(opt_quarantine);
if ((quarantine = tsd_quarantine_get(tsd)) == NULL) {
idalloctm(tsd, ptr, NULL, false, true);
quarantine = *quarantine_tsd_get();
if ((uintptr_t)quarantine <= (uintptr_t)QUARANTINE_STATE_MAX) {
if (quarantine == QUARANTINE_STATE_PURGATORY) {
/*
* Make a note that quarantine() was called after
* quarantine_cleanup() was called.
*/
quarantine = QUARANTINE_STATE_REINCARNATED;
quarantine_tsd_set(&quarantine);
}
idalloc(ptr);
return;
}
/*
@@ -135,11 +125,11 @@ quarantine(tsd_t *tsd, void *ptr)
if (quarantine->curbytes + usize > opt_quarantine) {
size_t upper_bound = (opt_quarantine >= usize) ? opt_quarantine
- usize : 0;
quarantine_drain(tsd, quarantine, upper_bound);
quarantine_drain(quarantine, upper_bound);
}
/* Grow the quarantine ring buffer if it's full. */
if (quarantine->curobjs == (ZU(1) << quarantine->lg_maxobjs))
quarantine = quarantine_grow(tsd, quarantine);
quarantine = quarantine_grow(quarantine);
/* quarantine_grow() must free a slot if it fails to grow. */
assert(quarantine->curobjs < (ZU(1) << quarantine->lg_maxobjs));
/* Append ptr if its size doesn't exceed the quarantine size. */
@@ -151,12 +141,12 @@ quarantine(tsd_t *tsd, void *ptr)
obj->usize = usize;
quarantine->curbytes += usize;
quarantine->curobjs++;
if (config_fill && unlikely(opt_junk_free)) {
if (config_fill && opt_junk) {
/*
* Only do redzone validation if Valgrind isn't in
* operation.
*/
if ((!config_valgrind || likely(!in_valgrind))
if ((config_valgrind == false || opt_valgrind == false)
&& usize <= SMALL_MAXCLASS)
arena_quarantine_junk_small(ptr, usize);
else
@@ -164,22 +154,46 @@ quarantine(tsd_t *tsd, void *ptr)
}
} else {
assert(quarantine->curbytes == 0);
idalloctm(tsd, ptr, NULL, false, true);
idalloc(ptr);
}
}
void
quarantine_cleanup(tsd_t *tsd)
quarantine_cleanup(void *arg)
{
quarantine_t *quarantine;
quarantine_t *quarantine = *(quarantine_t **)arg;
if (!config_fill)
return;
quarantine = tsd_quarantine_get(tsd);
if (quarantine != NULL) {
quarantine_drain(tsd, quarantine, 0);
idalloctm(tsd, quarantine, tcache_get(tsd, false), true, true);
tsd_quarantine_set(tsd, NULL);
if (quarantine == QUARANTINE_STATE_REINCARNATED) {
/*
* Another destructor deallocated memory after this destructor
* was called. Reset quarantine to QUARANTINE_STATE_PURGATORY
* in order to receive another callback.
*/
quarantine = QUARANTINE_STATE_PURGATORY;
quarantine_tsd_set(&quarantine);
} else if (quarantine == QUARANTINE_STATE_PURGATORY) {
/*
* The previous time this destructor was called, we set the key
* to QUARANTINE_STATE_PURGATORY so that other destructors
* wouldn't cause re-creation of the quarantine. This time, do
* nothing, so that the destructor will not be called again.
*/
} else if (quarantine != NULL) {
quarantine_drain(quarantine, 0);
idalloc(quarantine);
quarantine = QUARANTINE_STATE_PURGATORY;
quarantine_tsd_set(&quarantine);
}
}
bool
quarantine_boot(void)
{
cassert(config_fill);
if (quarantine_tsd_boot())
return (true);
return (false);
}

View File

@@ -1,74 +1,73 @@
#define JEMALLOC_RTREE_C_
#include "jemalloc/internal/jemalloc_internal.h"
static unsigned
hmin(unsigned ha, unsigned hb)
rtree_t *
rtree_new(unsigned bits, rtree_alloc_t *alloc, rtree_dalloc_t *dalloc)
{
return (ha < hb ? ha : hb);
}
/* Only the most significant bits of keys passed to rtree_[gs]et() are used. */
bool
rtree_new(rtree_t *rtree, unsigned bits, rtree_node_alloc_t *alloc,
rtree_node_dalloc_t *dalloc)
{
unsigned bits_in_leaf, height, i;
rtree_t *ret;
unsigned bits_per_level, bits_in_leaf, height, i;
assert(bits > 0 && bits <= (sizeof(uintptr_t) << 3));
bits_in_leaf = (bits % RTREE_BITS_PER_LEVEL) == 0 ? RTREE_BITS_PER_LEVEL
: (bits % RTREE_BITS_PER_LEVEL);
bits_per_level = ffs(pow2_ceil((RTREE_NODESIZE / sizeof(void *)))) - 1;
bits_in_leaf = ffs(pow2_ceil((RTREE_NODESIZE / sizeof(uint8_t)))) - 1;
if (bits > bits_in_leaf) {
height = 1 + (bits - bits_in_leaf) / RTREE_BITS_PER_LEVEL;
if ((height-1) * RTREE_BITS_PER_LEVEL + bits_in_leaf != bits)
height = 1 + (bits - bits_in_leaf) / bits_per_level;
if ((height-1) * bits_per_level + bits_in_leaf != bits)
height++;
} else
} else {
height = 1;
assert((height-1) * RTREE_BITS_PER_LEVEL + bits_in_leaf == bits);
rtree->alloc = alloc;
rtree->dalloc = dalloc;
rtree->height = height;
/* Root level. */
rtree->levels[0].subtree = NULL;
rtree->levels[0].bits = (height > 1) ? RTREE_BITS_PER_LEVEL :
bits_in_leaf;
rtree->levels[0].cumbits = rtree->levels[0].bits;
/* Interior levels. */
for (i = 1; i < height-1; i++) {
rtree->levels[i].subtree = NULL;
rtree->levels[i].bits = RTREE_BITS_PER_LEVEL;
rtree->levels[i].cumbits = rtree->levels[i-1].cumbits +
RTREE_BITS_PER_LEVEL;
}
/* Leaf level. */
assert((height-1) * bits_per_level + bits_in_leaf >= bits);
ret = (rtree_t*)alloc(offsetof(rtree_t, level2bits) +
(sizeof(unsigned) * height));
if (ret == NULL)
return (NULL);
memset(ret, 0, offsetof(rtree_t, level2bits) + (sizeof(unsigned) *
height));
ret->alloc = alloc;
ret->dalloc = dalloc;
if (malloc_mutex_init(&ret->mutex)) {
if (dalloc != NULL)
dalloc(ret);
return (NULL);
}
ret->height = height;
if (height > 1) {
rtree->levels[height-1].subtree = NULL;
rtree->levels[height-1].bits = bits_in_leaf;
rtree->levels[height-1].cumbits = bits;
}
if ((height-1) * bits_per_level + bits_in_leaf > bits) {
ret->level2bits[0] = (bits - bits_in_leaf) %
bits_per_level;
} else
ret->level2bits[0] = bits_per_level;
for (i = 1; i < height-1; i++)
ret->level2bits[i] = bits_per_level;
ret->level2bits[height-1] = bits_in_leaf;
} else
ret->level2bits[0] = bits;
/* Compute lookup table to be used by rtree_start_level(). */
for (i = 0; i < RTREE_HEIGHT_MAX; i++) {
rtree->start_level[i] = hmin(RTREE_HEIGHT_MAX - 1 - i, height -
1);
ret->root = (void**)alloc(sizeof(void *) << ret->level2bits[0]);
if (ret->root == NULL) {
if (dalloc != NULL)
dalloc(ret);
return (NULL);
}
memset(ret->root, 0, sizeof(void *) << ret->level2bits[0]);
return (false);
return (ret);
}
static void
rtree_delete_subtree(rtree_t *rtree, rtree_node_elm_t *node, unsigned level)
rtree_delete_subtree(rtree_t *rtree, void **node, unsigned level)
{
if (level + 1 < rtree->height) {
if (level < rtree->height - 1) {
size_t nchildren, i;
nchildren = ZU(1) << rtree->levels[level].bits;
nchildren = ZU(1) << rtree->level2bits[level];
for (i = 0; i < nchildren; i++) {
rtree_node_elm_t *child = node[i].child;
void **child = (void **)node[i];
if (child != NULL)
rtree_delete_subtree(rtree, child, level + 1);
}
@@ -79,49 +78,28 @@ rtree_delete_subtree(rtree_t *rtree, rtree_node_elm_t *node, unsigned level)
void
rtree_delete(rtree_t *rtree)
{
unsigned i;
for (i = 0; i < rtree->height; i++) {
rtree_node_elm_t *subtree = rtree->levels[i].subtree;
if (subtree != NULL)
rtree_delete_subtree(rtree, subtree, i);
}
rtree_delete_subtree(rtree, rtree->root, 0);
rtree->dalloc(rtree);
}
static rtree_node_elm_t *
rtree_node_init(rtree_t *rtree, unsigned level, rtree_node_elm_t **elmp)
{
rtree_node_elm_t *node;
if (atomic_cas_p((void **)elmp, NULL, RTREE_NODE_INITIALIZING)) {
/*
* Another thread is already in the process of initializing.
* Spin-wait until initialization is complete.
*/
do {
CPU_SPINWAIT;
node = atomic_read_p((void **)elmp);
} while (node == RTREE_NODE_INITIALIZING);
} else {
node = rtree->alloc(ZU(1) << rtree->levels[level].bits);
if (node == NULL)
return (NULL);
atomic_write_p((void **)elmp, node);
}
return (node);
}
rtree_node_elm_t *
rtree_subtree_read_hard(rtree_t *rtree, unsigned level)
void
rtree_prefork(rtree_t *rtree)
{
return (rtree_node_init(rtree, level, &rtree->levels[level].subtree));
malloc_mutex_prefork(&rtree->mutex);
}
rtree_node_elm_t *
rtree_child_read_hard(rtree_t *rtree, rtree_node_elm_t *elm, unsigned level)
void
rtree_postfork_parent(rtree_t *rtree)
{
return (rtree_node_init(rtree, level, &elm->child));
malloc_mutex_postfork_parent(&rtree->mutex);
}
void
rtree_postfork_child(rtree_t *rtree)
{
malloc_mutex_postfork_child(&rtree->mutex);
}

View File

@@ -6,22 +6,31 @@
xmallctl(n, v, &sz, NULL, 0); \
} while (0)
#define CTL_M2_GET(n, i, v, t) do { \
#define CTL_I_GET(n, v, t) do { \
size_t mib[6]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
mib[2] = (i); \
mib[2] = i; \
xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \
} while (0)
#define CTL_M2_M4_GET(n, i, j, v, t) do { \
#define CTL_J_GET(n, v, t) do { \
size_t mib[6]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
mib[2] = (i); \
mib[4] = (j); \
mib[2] = j; \
xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \
} while (0)
#define CTL_IJ_GET(n, v, t) do { \
size_t mib[6]; \
size_t miblen = sizeof(mib) / sizeof(size_t); \
size_t sz = sizeof(t); \
xmallctlnametomib(n, mib, &miblen); \
mib[2] = i; \
mib[4] = j; \
xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \
} while (0)
@@ -39,10 +48,8 @@ static void stats_arena_bins_print(void (*write_cb)(void *, const char *),
void *cbopaque, unsigned i);
static void stats_arena_lruns_print(void (*write_cb)(void *, const char *),
void *cbopaque, unsigned i);
static void stats_arena_hchunks_print(
void (*write_cb)(void *, const char *), void *cbopaque, unsigned i);
static void stats_arena_print(void (*write_cb)(void *, const char *),
void *cbopaque, unsigned i, bool bins, bool large, bool huge);
void *cbopaque, unsigned i, bool bins, bool large);
/******************************************************************************/
@@ -51,109 +58,100 @@ stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
unsigned i)
{
size_t page;
bool config_tcache, in_gap;
unsigned nbins, j;
bool config_tcache;
unsigned nbins, j, gap_start;
CTL_GET("arenas.page", &page, size_t);
CTL_GET("config.tcache", &config_tcache, bool);
if (config_tcache) {
malloc_cprintf(write_cb, cbopaque,
"bins: size ind allocated nmalloc"
" ndalloc nrequests curregs curruns regs"
" pgs util nfills nflushes newruns"
" reruns\n");
"bins: bin size regs pgs allocated nmalloc"
" ndalloc nrequests nfills nflushes"
" newruns reruns curruns\n");
} else {
malloc_cprintf(write_cb, cbopaque,
"bins: size ind allocated nmalloc"
" ndalloc nrequests curregs curruns regs"
" pgs util newruns reruns\n");
"bins: bin size regs pgs allocated nmalloc"
" ndalloc newruns reruns curruns\n");
}
CTL_GET("arenas.nbins", &nbins, unsigned);
for (j = 0, in_gap = false; j < nbins; j++) {
for (j = 0, gap_start = UINT_MAX; j < nbins; j++) {
uint64_t nruns;
CTL_M2_M4_GET("stats.arenas.0.bins.0.nruns", i, j, &nruns,
uint64_t);
if (nruns == 0)
in_gap = true;
else {
size_t reg_size, run_size, curregs, availregs, milli;
size_t curruns;
CTL_IJ_GET("stats.arenas.0.bins.0.nruns", &nruns, uint64_t);
if (nruns == 0) {
if (gap_start == UINT_MAX)
gap_start = j;
} else {
size_t reg_size, run_size, allocated;
uint32_t nregs;
uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes;
uint64_t reruns;
char util[6]; /* "x.yyy". */
size_t curruns;
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
in_gap = false;
if (gap_start != UINT_MAX) {
if (j > gap_start + 1) {
/* Gap of more than one size class. */
malloc_cprintf(write_cb, cbopaque,
"[%u..%u]\n", gap_start,
j - 1);
} else {
/* Gap of one size class. */
malloc_cprintf(write_cb, cbopaque,
"[%u]\n", gap_start);
}
gap_start = UINT_MAX;
}
CTL_M2_GET("arenas.bin.0.size", j, &reg_size, size_t);
CTL_M2_GET("arenas.bin.0.nregs", j, &nregs, uint32_t);
CTL_M2_GET("arenas.bin.0.run_size", j, &run_size,
size_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nmalloc", i, j,
CTL_J_GET("arenas.bin.0.size", &reg_size, size_t);
CTL_J_GET("arenas.bin.0.nregs", &nregs, uint32_t);
CTL_J_GET("arenas.bin.0.run_size", &run_size, size_t);
CTL_IJ_GET("stats.arenas.0.bins.0.allocated",
&allocated, size_t);
CTL_IJ_GET("stats.arenas.0.bins.0.nmalloc",
&nmalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.ndalloc", i, j,
CTL_IJ_GET("stats.arenas.0.bins.0.ndalloc",
&ndalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curregs", i, j,
&curregs, size_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nrequests", i, j,
&nrequests, uint64_t);
if (config_tcache) {
CTL_M2_M4_GET("stats.arenas.0.bins.0.nfills", i,
j, &nfills, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.nflushes",
i, j, &nflushes, uint64_t);
CTL_IJ_GET("stats.arenas.0.bins.0.nrequests",
&nrequests, uint64_t);
CTL_IJ_GET("stats.arenas.0.bins.0.nfills",
&nfills, uint64_t);
CTL_IJ_GET("stats.arenas.0.bins.0.nflushes",
&nflushes, uint64_t);
}
CTL_M2_M4_GET("stats.arenas.0.bins.0.nreruns", i, j,
&reruns, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.bins.0.curruns", i, j,
&curruns, size_t);
availregs = nregs * curruns;
milli = (availregs != 0) ? (1000 * curregs) / availregs
: 1000;
assert(milli <= 1000);
if (milli < 10) {
malloc_snprintf(util, sizeof(util),
"0.00%zu", milli);
} else if (milli < 100) {
malloc_snprintf(util, sizeof(util), "0.0%zu",
milli);
} else if (milli < 1000) {
malloc_snprintf(util, sizeof(util), "0.%zu",
milli);
} else
malloc_snprintf(util, sizeof(util), "1");
CTL_IJ_GET("stats.arenas.0.bins.0.nreruns", &reruns,
uint64_t);
CTL_IJ_GET("stats.arenas.0.bins.0.curruns", &curruns,
size_t);
if (config_tcache) {
malloc_cprintf(write_cb, cbopaque,
"%20zu %3u %12zu %12"FMTu64
" %12"FMTu64" %12"FMTu64" %12zu"
" %12zu %4u %3zu %-5s %12"FMTu64
" %12"FMTu64" %12"FMTu64" %12"FMTu64"\n",
reg_size, j, curregs * reg_size, nmalloc,
ndalloc, nrequests, curregs, curruns, nregs,
run_size / page, util, nfills, nflushes,
nruns, reruns);
"%13u %5zu %4u %3zu %12zu %12"PRIu64
" %12"PRIu64" %12"PRIu64" %12"PRIu64
" %12"PRIu64" %12"PRIu64" %12"PRIu64
" %12zu\n",
j, reg_size, nregs, run_size / page,
allocated, nmalloc, ndalloc, nrequests,
nfills, nflushes, nruns, reruns, curruns);
} else {
malloc_cprintf(write_cb, cbopaque,
"%20zu %3u %12zu %12"FMTu64
" %12"FMTu64" %12"FMTu64" %12zu"
" %12zu %4u %3zu %-5s %12"FMTu64
" %12"FMTu64"\n",
reg_size, j, curregs * reg_size, nmalloc,
ndalloc, nrequests, curregs, curruns, nregs,
run_size / page, util, nruns, reruns);
"%13u %5zu %4u %3zu %12zu %12"PRIu64
" %12"PRIu64" %12"PRIu64" %12"PRIu64
" %12zu\n",
j, reg_size, nregs, run_size / page,
allocated, nmalloc, ndalloc, nruns, reruns,
curruns);
}
}
}
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
if (gap_start != UINT_MAX) {
if (j > gap_start + 1) {
/* Gap of more than one size class. */
malloc_cprintf(write_cb, cbopaque, "[%u..%u]\n",
gap_start, j - 1);
} else {
/* Gap of one size class. */
malloc_cprintf(write_cb, cbopaque, "[%u]\n", gap_start);
}
}
}
@@ -161,208 +159,110 @@ static void
stats_arena_lruns_print(void (*write_cb)(void *, const char *), void *cbopaque,
unsigned i)
{
unsigned nbins, nlruns, j;
bool in_gap;
size_t page, nlruns, j;
ssize_t gap_start;
CTL_GET("arenas.page", &page, size_t);
malloc_cprintf(write_cb, cbopaque,
"large: size ind allocated nmalloc ndalloc"
" nrequests curruns\n");
CTL_GET("arenas.nbins", &nbins, unsigned);
CTL_GET("arenas.nlruns", &nlruns, unsigned);
for (j = 0, in_gap = false; j < nlruns; j++) {
"large: size pages nmalloc ndalloc nrequests"
" curruns\n");
CTL_GET("arenas.nlruns", &nlruns, size_t);
for (j = 0, gap_start = -1; j < nlruns; j++) {
uint64_t nmalloc, ndalloc, nrequests;
size_t run_size, curruns;
CTL_M2_M4_GET("stats.arenas.0.lruns.0.nmalloc", i, j, &nmalloc,
CTL_IJ_GET("stats.arenas.0.lruns.0.nmalloc", &nmalloc,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.lruns.0.ndalloc", i, j, &ndalloc,
CTL_IJ_GET("stats.arenas.0.lruns.0.ndalloc", &ndalloc,
uint64_t);
CTL_M2_M4_GET("stats.arenas.0.lruns.0.nrequests", i, j,
&nrequests, uint64_t);
if (nrequests == 0)
in_gap = true;
else {
CTL_M2_GET("arenas.lrun.0.size", j, &run_size, size_t);
CTL_M2_M4_GET("stats.arenas.0.lruns.0.curruns", i, j,
&curruns, size_t);
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
in_gap = false;
}
malloc_cprintf(write_cb, cbopaque,
"%20zu %3u %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64" %12zu\n",
run_size, nbins + j, curruns * run_size, nmalloc,
ndalloc, nrequests, curruns);
}
}
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
}
}
static void
stats_arena_hchunks_print(void (*write_cb)(void *, const char *),
void *cbopaque, unsigned i)
{
unsigned nbins, nlruns, nhchunks, j;
bool in_gap;
malloc_cprintf(write_cb, cbopaque,
"huge: size ind allocated nmalloc ndalloc"
" nrequests curhchunks\n");
CTL_GET("arenas.nbins", &nbins, unsigned);
CTL_GET("arenas.nlruns", &nlruns, unsigned);
CTL_GET("arenas.nhchunks", &nhchunks, unsigned);
for (j = 0, in_gap = false; j < nhchunks; j++) {
uint64_t nmalloc, ndalloc, nrequests;
size_t hchunk_size, curhchunks;
CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nmalloc", i, j,
&nmalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.hchunks.0.ndalloc", i, j,
&ndalloc, uint64_t);
CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nrequests", i, j,
&nrequests, uint64_t);
if (nrequests == 0)
in_gap = true;
else {
CTL_M2_GET("arenas.hchunk.0.size", j, &hchunk_size,
CTL_IJ_GET("stats.arenas.0.lruns.0.nrequests", &nrequests,
uint64_t);
if (nrequests == 0) {
if (gap_start == -1)
gap_start = j;
} else {
CTL_J_GET("arenas.lrun.0.size", &run_size, size_t);
CTL_IJ_GET("stats.arenas.0.lruns.0.curruns", &curruns,
size_t);
CTL_M2_M4_GET("stats.arenas.0.hchunks.0.curhchunks", i,
j, &curhchunks, size_t);
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
in_gap = false;
if (gap_start != -1) {
malloc_cprintf(write_cb, cbopaque, "[%zu]\n",
j - gap_start);
gap_start = -1;
}
malloc_cprintf(write_cb, cbopaque,
"%20zu %3u %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64" %12zu\n",
hchunk_size, nbins + nlruns + j,
curhchunks * hchunk_size, nmalloc, ndalloc,
nrequests, curhchunks);
"%13zu %5zu %12"PRIu64" %12"PRIu64" %12"PRIu64
" %12zu\n",
run_size, run_size / page, nmalloc, ndalloc,
nrequests, curruns);
}
}
if (in_gap) {
malloc_cprintf(write_cb, cbopaque,
" ---\n");
}
if (gap_start != -1)
malloc_cprintf(write_cb, cbopaque, "[%zu]\n", j - gap_start);
}
static void
stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
unsigned i, bool bins, bool large, bool huge)
unsigned i, bool bins, bool large)
{
unsigned nthreads;
const char *dss;
ssize_t lg_dirty_mult, decay_time;
size_t page, pactive, pdirty, mapped;
size_t metadata_mapped, metadata_allocated;
uint64_t npurge, nmadvise, purged;
size_t small_allocated;
uint64_t small_nmalloc, small_ndalloc, small_nrequests;
size_t large_allocated;
uint64_t large_nmalloc, large_ndalloc, large_nrequests;
size_t huge_allocated;
uint64_t huge_nmalloc, huge_ndalloc, huge_nrequests;
CTL_GET("arenas.page", &page, size_t);
CTL_M2_GET("stats.arenas.0.nthreads", i, &nthreads, unsigned);
CTL_I_GET("stats.arenas.0.nthreads", &nthreads, unsigned);
malloc_cprintf(write_cb, cbopaque,
"assigned threads: %u\n", nthreads);
CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *);
CTL_I_GET("stats.arenas.0.dss", &dss, const char *);
malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n",
dss);
CTL_M2_GET("stats.arenas.0.lg_dirty_mult", i, &lg_dirty_mult, ssize_t);
if (opt_purge == purge_mode_ratio) {
if (lg_dirty_mult >= 0) {
malloc_cprintf(write_cb, cbopaque,
"min active:dirty page ratio: %u:1\n",
(1U << lg_dirty_mult));
} else {
malloc_cprintf(write_cb, cbopaque,
"min active:dirty page ratio: N/A\n");
}
}
CTL_M2_GET("stats.arenas.0.decay_time", i, &decay_time, ssize_t);
if (opt_purge == purge_mode_decay) {
if (decay_time >= 0) {
malloc_cprintf(write_cb, cbopaque, "decay time: %zd\n",
decay_time);
} else
malloc_cprintf(write_cb, cbopaque, "decay time: N/A\n");
}
CTL_M2_GET("stats.arenas.0.pactive", i, &pactive, size_t);
CTL_M2_GET("stats.arenas.0.pdirty", i, &pdirty, size_t);
CTL_M2_GET("stats.arenas.0.npurge", i, &npurge, uint64_t);
CTL_M2_GET("stats.arenas.0.nmadvise", i, &nmadvise, uint64_t);
CTL_M2_GET("stats.arenas.0.purged", i, &purged, uint64_t);
CTL_I_GET("stats.arenas.0.pactive", &pactive, size_t);
CTL_I_GET("stats.arenas.0.pdirty", &pdirty, size_t);
CTL_I_GET("stats.arenas.0.npurge", &npurge, uint64_t);
CTL_I_GET("stats.arenas.0.nmadvise", &nmadvise, uint64_t);
CTL_I_GET("stats.arenas.0.purged", &purged, uint64_t);
malloc_cprintf(write_cb, cbopaque,
"purging: dirty: %zu, sweeps: %"FMTu64", madvises: %"FMTu64", "
"purged: %"FMTu64"\n", pdirty, npurge, nmadvise, purged);
"dirty pages: %zu:%zu active:dirty, %"PRIu64" sweep%s,"
" %"PRIu64" madvise%s, %"PRIu64" purged\n",
pactive, pdirty, npurge, npurge == 1 ? "" : "s",
nmadvise, nmadvise == 1 ? "" : "s", purged);
malloc_cprintf(write_cb, cbopaque,
" allocated nmalloc ndalloc"
" nrequests\n");
CTL_M2_GET("stats.arenas.0.small.allocated", i, &small_allocated,
size_t);
CTL_M2_GET("stats.arenas.0.small.nmalloc", i, &small_nmalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.small.ndalloc", i, &small_ndalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.small.nrequests", i, &small_nrequests,
uint64_t);
" allocated nmalloc ndalloc nrequests\n");
CTL_I_GET("stats.arenas.0.small.allocated", &small_allocated, size_t);
CTL_I_GET("stats.arenas.0.small.nmalloc", &small_nmalloc, uint64_t);
CTL_I_GET("stats.arenas.0.small.ndalloc", &small_ndalloc, uint64_t);
CTL_I_GET("stats.arenas.0.small.nrequests", &small_nrequests, uint64_t);
malloc_cprintf(write_cb, cbopaque,
"small: %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64"\n",
"small: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n",
small_allocated, small_nmalloc, small_ndalloc, small_nrequests);
CTL_M2_GET("stats.arenas.0.large.allocated", i, &large_allocated,
size_t);
CTL_M2_GET("stats.arenas.0.large.nmalloc", i, &large_nmalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.large.ndalloc", i, &large_ndalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.large.nrequests", i, &large_nrequests,
uint64_t);
CTL_I_GET("stats.arenas.0.large.allocated", &large_allocated, size_t);
CTL_I_GET("stats.arenas.0.large.nmalloc", &large_nmalloc, uint64_t);
CTL_I_GET("stats.arenas.0.large.ndalloc", &large_ndalloc, uint64_t);
CTL_I_GET("stats.arenas.0.large.nrequests", &large_nrequests, uint64_t);
malloc_cprintf(write_cb, cbopaque,
"large: %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64"\n",
"large: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n",
large_allocated, large_nmalloc, large_ndalloc, large_nrequests);
CTL_M2_GET("stats.arenas.0.huge.allocated", i, &huge_allocated, size_t);
CTL_M2_GET("stats.arenas.0.huge.nmalloc", i, &huge_nmalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.huge.ndalloc", i, &huge_ndalloc, uint64_t);
CTL_M2_GET("stats.arenas.0.huge.nrequests", i, &huge_nrequests,
uint64_t);
malloc_cprintf(write_cb, cbopaque,
"huge: %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64"\n",
huge_allocated, huge_nmalloc, huge_ndalloc, huge_nrequests);
malloc_cprintf(write_cb, cbopaque,
"total: %12zu %12"FMTu64" %12"FMTu64
" %12"FMTu64"\n",
small_allocated + large_allocated + huge_allocated,
small_nmalloc + large_nmalloc + huge_nmalloc,
small_ndalloc + large_ndalloc + huge_ndalloc,
small_nrequests + large_nrequests + huge_nrequests);
malloc_cprintf(write_cb, cbopaque,
"active: %12zu\n", pactive * page);
CTL_M2_GET("stats.arenas.0.mapped", i, &mapped, size_t);
malloc_cprintf(write_cb, cbopaque,
"mapped: %12zu\n", mapped);
CTL_M2_GET("stats.arenas.0.metadata.mapped", i, &metadata_mapped,
size_t);
CTL_M2_GET("stats.arenas.0.metadata.allocated", i, &metadata_allocated,
size_t);
malloc_cprintf(write_cb, cbopaque,
"metadata: mapped: %zu, allocated: %zu\n",
metadata_mapped, metadata_allocated);
"total: %12zu %12"PRIu64" %12"PRIu64" %12"PRIu64"\n",
small_allocated + large_allocated,
small_nmalloc + large_nmalloc,
small_ndalloc + large_ndalloc,
small_nrequests + large_nrequests);
malloc_cprintf(write_cb, cbopaque, "active: %12zu\n", pactive * page);
CTL_I_GET("stats.arenas.0.mapped", &mapped, size_t);
malloc_cprintf(write_cb, cbopaque, "mapped: %12zu\n", mapped);
if (bins)
stats_arena_bins_print(write_cb, cbopaque, i);
if (large)
stats_arena_lruns_print(write_cb, cbopaque, i);
if (huge)
stats_arena_hchunks_print(write_cb, cbopaque, i);
}
void
@@ -377,7 +277,6 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
bool unmerged = true;
bool bins = true;
bool large = true;
bool huge = true;
/*
* Refresh stats, in case mallctl() was called by the application.
@@ -420,9 +319,6 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
case 'l':
large = false;
break;
case 'h':
huge = false;
break;
default:;
}
}
@@ -431,14 +327,14 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
malloc_cprintf(write_cb, cbopaque,
"___ Begin jemalloc statistics ___\n");
if (general) {
int err;
const char *cpv;
bool bv;
unsigned uv;
ssize_t ssv;
size_t sv, bsz, usz, ssz, sssz, cpsz;
size_t sv, bsz, ssz, sssz, cpsz;
bsz = sizeof(bool);
usz = sizeof(unsigned);
ssz = sizeof(size_t);
sssz = sizeof(ssize_t);
cpsz = sizeof(const char *);
@@ -448,49 +344,28 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
CTL_GET("config.debug", &bv, bool);
malloc_cprintf(write_cb, cbopaque, "Assertions %s\n",
bv ? "enabled" : "disabled");
malloc_cprintf(write_cb, cbopaque,
"config.malloc_conf: \"%s\"\n", config_malloc_conf);
#define OPT_WRITE_BOOL(n) \
if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0) { \
if ((err = je_mallctl("opt."#n, &bv, &bsz, NULL, 0)) \
== 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %s\n", bv ? "true" : "false"); \
}
#define OPT_WRITE_BOOL_MUTABLE(n, m) { \
bool bv2; \
if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0 && \
je_mallctl(#m, &bv2, &bsz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %s ("#m": %s)\n", bv ? "true" \
: "false", bv2 ? "true" : "false"); \
} \
}
#define OPT_WRITE_UNSIGNED(n) \
if (je_mallctl("opt."#n, &uv, &usz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zu\n", sv); \
}
#define OPT_WRITE_SIZE_T(n) \
if (je_mallctl("opt."#n, &sv, &ssz, NULL, 0) == 0) { \
if ((err = je_mallctl("opt."#n, &sv, &ssz, NULL, 0)) \
== 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zu\n", sv); \
}
#define OPT_WRITE_SSIZE_T(n) \
if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0) { \
if ((err = je_mallctl("opt."#n, &ssv, &sssz, NULL, 0)) \
== 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zd\n", ssv); \
}
#define OPT_WRITE_SSIZE_T_MUTABLE(n, m) { \
ssize_t ssv2; \
if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0 && \
je_mallctl(#m, &ssv2, &sssz, NULL, 0) == 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": %zd ("#m": %zd)\n", \
ssv, ssv2); \
} \
}
#define OPT_WRITE_CHAR_P(n) \
if (je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0) == 0) { \
if ((err = je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0)) \
== 0) { \
malloc_cprintf(write_cb, cbopaque, \
" opt."#n": \"%s\"\n", cpv); \
}
@@ -500,16 +375,10 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
OPT_WRITE_BOOL(abort)
OPT_WRITE_SIZE_T(lg_chunk)
OPT_WRITE_CHAR_P(dss)
OPT_WRITE_UNSIGNED(narenas)
OPT_WRITE_CHAR_P(purge)
if (opt_purge == purge_mode_ratio) {
OPT_WRITE_SSIZE_T_MUTABLE(lg_dirty_mult,
arenas.lg_dirty_mult)
}
if (opt_purge == purge_mode_decay)
OPT_WRITE_SSIZE_T_MUTABLE(decay_time, arenas.decay_time)
OPT_WRITE_SIZE_T(narenas)
OPT_WRITE_SSIZE_T(lg_dirty_mult)
OPT_WRITE_BOOL(stats_print)
OPT_WRITE_CHAR_P(junk)
OPT_WRITE_BOOL(junk)
OPT_WRITE_SIZE_T(quarantine)
OPT_WRITE_BOOL(redzone)
OPT_WRITE_BOOL(zero)
@@ -520,9 +389,7 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
OPT_WRITE_SSIZE_T(lg_tcache_max)
OPT_WRITE_BOOL(prof)
OPT_WRITE_CHAR_P(prof_prefix)
OPT_WRITE_BOOL_MUTABLE(prof_active, prof.active)
OPT_WRITE_BOOL_MUTABLE(prof_thread_active_init,
prof.thread_active_init)
OPT_WRITE_BOOL(prof_active)
OPT_WRITE_SSIZE_T(lg_prof_sample)
OPT_WRITE_BOOL(prof_accum)
OPT_WRITE_SSIZE_T(lg_prof_interval)
@@ -531,7 +398,6 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
OPT_WRITE_BOOL(prof_leak)
#undef OPT_WRITE_BOOL
#undef OPT_WRITE_BOOL_MUTABLE
#undef OPT_WRITE_SIZE_T
#undef OPT_WRITE_SSIZE_T
#undef OPT_WRITE_CHAR_P
@@ -545,44 +411,36 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
sizeof(void *));
CTL_GET("arenas.quantum", &sv, size_t);
malloc_cprintf(write_cb, cbopaque, "Quantum size: %zu\n",
sv);
malloc_cprintf(write_cb, cbopaque, "Quantum size: %zu\n", sv);
CTL_GET("arenas.page", &sv, size_t);
malloc_cprintf(write_cb, cbopaque, "Page size: %zu\n", sv);
CTL_GET("arenas.lg_dirty_mult", &ssv, ssize_t);
if (opt_purge == purge_mode_ratio) {
if (ssv >= 0) {
malloc_cprintf(write_cb, cbopaque,
"Min active:dirty page ratio per arena: "
"%u:1\n", (1U << ssv));
} else {
malloc_cprintf(write_cb, cbopaque,
"Min active:dirty page ratio per arena: "
"N/A\n");
}
}
CTL_GET("arenas.decay_time", &ssv, ssize_t);
if (opt_purge == purge_mode_decay) {
CTL_GET("opt.lg_dirty_mult", &ssv, ssize_t);
if (ssv >= 0) {
malloc_cprintf(write_cb, cbopaque,
"Unused dirty page decay time: %zd%s\n",
ssv, (ssv < 0) ? " (no decay)" : "");
"Min active:dirty page ratio per arena: %u:1\n",
(1U << ssv));
} else {
malloc_cprintf(write_cb, cbopaque,
"Min active:dirty page ratio per arena: N/A\n");
}
if (je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0) == 0) {
if ((err = je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0))
== 0) {
malloc_cprintf(write_cb, cbopaque,
"Maximum thread-cached size class: %zu\n", sv);
}
if (je_mallctl("opt.prof", &bv, &bsz, NULL, 0) == 0 && bv) {
CTL_GET("prof.lg_sample", &sv, size_t);
if ((err = je_mallctl("opt.prof", &bv, &bsz, NULL, 0)) == 0 &&
bv) {
CTL_GET("opt.lg_prof_sample", &sv, size_t);
malloc_cprintf(write_cb, cbopaque,
"Average profile sample interval: %"FMTu64
"Average profile sample interval: %"PRIu64
" (2^%zu)\n", (((uint64_t)1U) << sv), sv);
CTL_GET("opt.lg_prof_interval", &ssv, ssize_t);
if (ssv >= 0) {
malloc_cprintf(write_cb, cbopaque,
"Average profile dump interval: %"FMTu64
"Average profile dump interval: %"PRIu64
" (2^%zd)\n",
(((uint64_t)1U) << ssv), ssv);
} else {
@@ -591,27 +449,47 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
}
}
CTL_GET("opt.lg_chunk", &sv, size_t);
malloc_cprintf(write_cb, cbopaque,
"Chunk size: %zu (2^%zu)\n", (ZU(1) << sv), sv);
malloc_cprintf(write_cb, cbopaque, "Chunk size: %zu (2^%zu)\n",
(ZU(1) << sv), sv);
}
if (config_stats) {
size_t *cactive;
size_t allocated, active, metadata, resident, mapped;
size_t allocated, active, mapped;
size_t chunks_current, chunks_high;
uint64_t chunks_total;
size_t huge_allocated;
uint64_t huge_nmalloc, huge_ndalloc;
CTL_GET("stats.cactive", &cactive, size_t *);
CTL_GET("stats.allocated", &allocated, size_t);
CTL_GET("stats.active", &active, size_t);
CTL_GET("stats.metadata", &metadata, size_t);
CTL_GET("stats.resident", &resident, size_t);
CTL_GET("stats.mapped", &mapped, size_t);
malloc_cprintf(write_cb, cbopaque,
"Allocated: %zu, active: %zu, metadata: %zu,"
" resident: %zu, mapped: %zu\n",
allocated, active, metadata, resident, mapped);
"Allocated: %zu, active: %zu, mapped: %zu\n",
allocated, active, mapped);
malloc_cprintf(write_cb, cbopaque,
"Current active ceiling: %zu\n",
atomic_read_z(cactive));
"Current active ceiling: %zu\n", atomic_read_z(cactive));
/* Print chunk stats. */
CTL_GET("stats.chunks.total", &chunks_total, uint64_t);
CTL_GET("stats.chunks.high", &chunks_high, size_t);
CTL_GET("stats.chunks.current", &chunks_current, size_t);
malloc_cprintf(write_cb, cbopaque, "chunks: nchunks "
"highchunks curchunks\n");
malloc_cprintf(write_cb, cbopaque,
" %13"PRIu64" %12zu %12zu\n",
chunks_total, chunks_high, chunks_current);
/* Print huge stats. */
CTL_GET("stats.huge.nmalloc", &huge_nmalloc, uint64_t);
CTL_GET("stats.huge.ndalloc", &huge_ndalloc, uint64_t);
CTL_GET("stats.huge.allocated", &huge_allocated, size_t);
malloc_cprintf(write_cb, cbopaque,
"huge: nmalloc ndalloc allocated\n");
malloc_cprintf(write_cb, cbopaque,
" %12"PRIu64" %12"PRIu64" %12zu\n",
huge_nmalloc, huge_ndalloc, huge_allocated);
if (merged) {
unsigned narenas;
@@ -630,12 +508,12 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
ninitialized++;
}
if (ninitialized > 1 || !unmerged) {
if (ninitialized > 1 || unmerged == false) {
/* Print merged arena stats. */
malloc_cprintf(write_cb, cbopaque,
"\nMerged arenas stats:\n");
stats_arena_print(write_cb, cbopaque,
narenas, bins, large, huge);
narenas, bins, large);
}
}
}
@@ -661,8 +539,7 @@ stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
cbopaque,
"\narenas[%u]:\n", i);
stats_arena_print(write_cb,
cbopaque, i, bins, large,
huge);
cbopaque, i, bins, large);
}
}
}

View File

@@ -4,23 +4,18 @@
/******************************************************************************/
/* Data. */
malloc_tsd_data(, tcache, tcache_t *, NULL)
malloc_tsd_data(, tcache_enabled, tcache_enabled_t, tcache_enabled_default)
bool opt_tcache = true;
ssize_t opt_lg_tcache_max = LG_TCACHE_MAXCLASS_DEFAULT;
tcache_bin_info_t *tcache_bin_info;
static unsigned stack_nelms; /* Total stack elms per tcache. */
unsigned nhbins;
size_t nhbins;
size_t tcache_maxclass;
tcaches_t *tcaches;
/* Index of first element within tcaches that has never been used. */
static unsigned tcaches_past;
/* Head of singly linked list tracking available tcaches elements. */
static tcaches_t *tcaches_avail;
/******************************************************************************/
size_t tcache_salloc(const void *ptr)
@@ -30,9 +25,9 @@ size_t tcache_salloc(const void *ptr)
}
void
tcache_event_hard(tsd_t *tsd, tcache_t *tcache)
tcache_event_hard(tcache_t *tcache)
{
szind_t binind = tcache->next_gc_bin;
size_t binind = tcache->next_gc_bin;
tcache_bin_t *tbin = &tcache->tbins[binind];
tcache_bin_info_t *tbin_info = &tcache_bin_info[binind];
@@ -41,12 +36,11 @@ tcache_event_hard(tsd_t *tsd, tcache_t *tcache)
* Flush (ceiling) 3/4 of the objects below the low water mark.
*/
if (binind < NBINS) {
tcache_bin_flush_small(tsd, tcache, tbin, binind,
tbin->ncached - tbin->low_water + (tbin->low_water
>> 2));
tcache_bin_flush_small(tbin, binind, tbin->ncached -
tbin->low_water + (tbin->low_water >> 2), tcache);
} else {
tcache_bin_flush_large(tsd, tbin, binind, tbin->ncached
- tbin->low_water + (tbin->low_water >> 2), tcache);
tcache_bin_flush_large(tbin, binind, tbin->ncached -
tbin->low_water + (tbin->low_water >> 2), tcache);
}
/*
* Reduce fill count by 2X. Limit lg_fill_div such that the
@@ -67,28 +61,27 @@ tcache_event_hard(tsd_t *tsd, tcache_t *tcache)
tcache->next_gc_bin++;
if (tcache->next_gc_bin == nhbins)
tcache->next_gc_bin = 0;
tcache->ev_cnt = 0;
}
void *
tcache_alloc_small_hard(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
tcache_bin_t *tbin, szind_t binind, bool *tcache_success)
tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin, size_t binind)
{
void *ret;
arena_tcache_fill_small(tsd, arena, tbin, binind, config_prof ?
tcache->prof_accumbytes : 0);
arena_tcache_fill_small(tcache->arena, tbin, binind,
config_prof ? tcache->prof_accumbytes : 0);
if (config_prof)
tcache->prof_accumbytes = 0;
ret = tcache_alloc_easy(tbin, tcache_success);
ret = tcache_alloc_easy(tbin);
return (ret);
}
void
tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
szind_t binind, unsigned rem)
tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache)
{
arena_t *arena;
void *ptr;
unsigned i, nflush, ndeferred;
bool merged_stats = false;
@@ -96,24 +89,22 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
assert(binind < NBINS);
assert(rem <= tbin->ncached);
arena = arena_choose(tsd, NULL);
assert(arena != NULL);
for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) {
/* Lock the arena bin associated with the first object. */
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(
*(tbin->avail - 1));
arena_t *bin_arena = extent_node_arena_get(&chunk->node);
arena_bin_t *bin = &bin_arena->bins[binind];
tbin->avail[0]);
arena_t *arena = chunk->arena;
arena_bin_t *bin = &arena->bins[binind];
if (config_prof && bin_arena == arena) {
if (config_prof && arena == tcache->arena) {
if (arena_prof_accum(arena, tcache->prof_accumbytes))
prof_idump();
tcache->prof_accumbytes = 0;
}
malloc_mutex_lock(&bin->lock);
if (config_stats && bin_arena == arena) {
assert(!merged_stats);
if (config_stats && arena == tcache->arena) {
assert(merged_stats == false);
merged_stats = true;
bin->stats.nflushes++;
bin->stats.nrequests += tbin->tstats.nrequests;
@@ -121,16 +112,20 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
}
ndeferred = 0;
for (i = 0; i < nflush; i++) {
ptr = *(tbin->avail - 1 - i);
ptr = tbin->avail[i];
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (extent_node_arena_get(&chunk->node) == bin_arena) {
if (chunk->arena == arena) {
size_t pageind = ((uintptr_t)ptr -
(uintptr_t)chunk) >> LG_PAGE;
arena_chunk_map_bits_t *bitselm =
arena_bitselm_get(chunk, pageind);
arena_dalloc_bin_junked_locked(bin_arena, chunk,
ptr, bitselm);
arena_chunk_map_t *mapelm =
arena_mapp_get(chunk, pageind);
if (config_fill && opt_junk) {
arena_alloc_junk_small(ptr,
&arena_bin_info[binind], true);
}
arena_dalloc_bin_locked(arena, chunk, ptr,
mapelm);
} else {
/*
* This object was allocated via a different
@@ -138,19 +133,18 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
* locked. Stash the object, so that it can be
* handled in a future pass.
*/
*(tbin->avail - 1 - ndeferred) = ptr;
tbin->avail[ndeferred] = ptr;
ndeferred++;
}
}
malloc_mutex_unlock(&bin->lock);
arena_decay_ticks(tsd, bin_arena, nflush - ndeferred);
}
if (config_stats && !merged_stats) {
if (config_stats && merged_stats == false) {
/*
* The flush loop didn't happen to flush to this thread's
* arena, so the stats didn't get merged. Manually do so now.
*/
arena_bin_t *bin = &arena->bins[binind];
arena_bin_t *bin = &tcache->arena->bins[binind];
malloc_mutex_lock(&bin->lock);
bin->stats.nflushes++;
bin->stats.nrequests += tbin->tstats.nrequests;
@@ -158,18 +152,17 @@ tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
malloc_mutex_unlock(&bin->lock);
}
memmove(tbin->avail - rem, tbin->avail - tbin->ncached, rem *
sizeof(void *));
memmove(tbin->avail, &tbin->avail[tbin->ncached - rem],
rem * sizeof(void *));
tbin->ncached = rem;
if ((int)tbin->ncached < tbin->low_water)
tbin->low_water = tbin->ncached;
}
void
tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
unsigned rem, tcache_t *tcache)
tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem,
tcache_t *tcache)
{
arena_t *arena;
void *ptr;
unsigned i, nflush, ndeferred;
bool merged_stats = false;
@@ -177,19 +170,17 @@ tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
assert(binind < nhbins);
assert(rem <= tbin->ncached);
arena = arena_choose(tsd, NULL);
assert(arena != NULL);
for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) {
/* Lock the arena associated with the first object. */
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(
*(tbin->avail - 1));
arena_t *locked_arena = extent_node_arena_get(&chunk->node);
tbin->avail[0]);
arena_t *arena = chunk->arena;
UNUSED bool idump;
if (config_prof)
idump = false;
malloc_mutex_lock(&locked_arena->lock);
if ((config_prof || config_stats) && locked_arena == arena) {
malloc_mutex_lock(&arena->lock);
if ((config_prof || config_stats) && arena == tcache->arena) {
if (config_prof) {
idump = arena_prof_accum_locked(arena,
tcache->prof_accumbytes);
@@ -206,34 +197,32 @@ tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
}
ndeferred = 0;
for (i = 0; i < nflush; i++) {
ptr = *(tbin->avail - 1 - i);
ptr = tbin->avail[i];
assert(ptr != NULL);
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
if (extent_node_arena_get(&chunk->node) ==
locked_arena) {
arena_dalloc_large_junked_locked(locked_arena,
chunk, ptr);
} else {
if (chunk->arena == arena)
arena_dalloc_large_locked(arena, chunk, ptr);
else {
/*
* This object was allocated via a different
* arena than the one that is currently locked.
* Stash the object, so that it can be handled
* in a future pass.
*/
*(tbin->avail - 1 - ndeferred) = ptr;
tbin->avail[ndeferred] = ptr;
ndeferred++;
}
}
malloc_mutex_unlock(&locked_arena->lock);
malloc_mutex_unlock(&arena->lock);
if (config_prof && idump)
prof_idump();
arena_decay_ticks(tsd, locked_arena, nflush - ndeferred);
}
if (config_stats && !merged_stats) {
if (config_stats && merged_stats == false) {
/*
* The flush loop didn't happen to flush to this thread's
* arena, so the stats didn't get merged. Manually do so now.
*/
arena_t *arena = tcache->arena;
malloc_mutex_lock(&arena->lock);
arena->stats.nrequests_large += tbin->tstats.nrequests;
arena->stats.lstats[binind - NBINS].nrequests +=
@@ -242,8 +231,8 @@ tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
malloc_mutex_unlock(&arena->lock);
}
memmove(tbin->avail - rem, tbin->avail - tbin->ncached, rem *
sizeof(void *));
memmove(tbin->avail, &tbin->avail[tbin->ncached - rem],
rem * sizeof(void *));
tbin->ncached = rem;
if ((int)tbin->ncached < tbin->low_water)
tbin->low_water = tbin->ncached;
@@ -260,58 +249,24 @@ tcache_arena_associate(tcache_t *tcache, arena_t *arena)
ql_tail_insert(&arena->tcache_ql, tcache, link);
malloc_mutex_unlock(&arena->lock);
}
tcache->arena = arena;
}
void
tcache_arena_reassociate(tcache_t *tcache, arena_t *oldarena, arena_t *newarena)
{
tcache_arena_dissociate(tcache, oldarena);
tcache_arena_associate(tcache, newarena);
}
void
tcache_arena_dissociate(tcache_t *tcache, arena_t *arena)
tcache_arena_dissociate(tcache_t *tcache)
{
if (config_stats) {
/* Unlink from list of extant tcaches. */
malloc_mutex_lock(&arena->lock);
if (config_debug) {
bool in_ql = false;
tcache_t *iter;
ql_foreach(iter, &arena->tcache_ql, link) {
if (iter == tcache) {
in_ql = true;
break;
}
}
assert(in_ql);
}
ql_remove(&arena->tcache_ql, tcache, link);
tcache_stats_merge(tcache, arena);
malloc_mutex_unlock(&arena->lock);
malloc_mutex_lock(&tcache->arena->lock);
ql_remove(&tcache->arena->tcache_ql, tcache, link);
tcache_stats_merge(tcache, tcache->arena);
malloc_mutex_unlock(&tcache->arena->lock);
}
}
tcache_t *
tcache_get_hard(tsd_t *tsd)
{
arena_t *arena;
if (!tcache_enabled_get()) {
if (tsd_nominal(tsd))
tcache_enabled_set(false); /* Memoize. */
return (NULL);
}
arena = arena_choose(tsd, NULL);
if (unlikely(arena == NULL))
return (NULL);
return (tcache_create(tsd, arena));
}
tcache_t *
tcache_create(tsd_t *tsd, arena_t *arena)
tcache_create(arena_t *arena)
{
tcache_t *tcache;
size_t size, stack_offset;
@@ -322,48 +277,55 @@ tcache_create(tsd_t *tsd, arena_t *arena)
size = PTR_CEILING(size);
stack_offset = size;
size += stack_nelms * sizeof(void *);
/* Avoid false cacheline sharing. */
size = sa2u(size, CACHELINE);
/*
* Round up to the nearest multiple of the cacheline size, in order to
* avoid the possibility of false cacheline sharing.
*
* That this works relies on the same logic as in ipalloc(), but we
* cannot directly call ipalloc() here due to tcache bootstrapping
* issues.
*/
size = (size + CACHELINE_MASK) & (-CACHELINE);
if (size <= SMALL_MAXCLASS)
tcache = (tcache_t *)arena_malloc_small(arena, size, true);
else if (size <= tcache_maxclass)
tcache = (tcache_t *)arena_malloc_large(arena, size, true);
else
tcache = (tcache_t *)icalloct(size, false, arena);
tcache = ipallocztm(tsd, size, CACHELINE, true, false, true,
arena_get(0, false));
if (tcache == NULL)
return (NULL);
tcache_arena_associate(tcache, arena);
ticker_init(&tcache->gc_ticker, TCACHE_GC_INCR);
assert((TCACHE_NSLOTS_SMALL_MAX & 1U) == 0);
for (i = 0; i < nhbins; i++) {
tcache->tbins[i].lg_fill_div = 1;
stack_offset += tcache_bin_info[i].ncached_max * sizeof(void *);
/*
* avail points past the available space. Allocations will
* access the slots toward higher addresses (for the benefit of
* prefetch).
*/
tcache->tbins[i].avail = (void **)((uintptr_t)tcache +
(uintptr_t)stack_offset);
stack_offset += tcache_bin_info[i].ncached_max * sizeof(void *);
}
tcache_tsd_set(&tcache);
return (tcache);
}
static void
tcache_destroy(tsd_t *tsd, tcache_t *tcache)
void
tcache_destroy(tcache_t *tcache)
{
arena_t *arena;
unsigned i;
size_t tcache_size;
arena = arena_choose(tsd, NULL);
tcache_arena_dissociate(tcache, arena);
tcache_arena_dissociate(tcache);
for (i = 0; i < NBINS; i++) {
tcache_bin_t *tbin = &tcache->tbins[i];
tcache_bin_flush_small(tsd, tcache, tbin, i, 0);
tcache_bin_flush_small(tbin, i, 0, tcache);
if (config_stats && tbin->tstats.nrequests != 0) {
arena_t *arena = tcache->arena;
arena_bin_t *bin = &arena->bins[i];
malloc_mutex_lock(&bin->lock);
bin->stats.nrequests += tbin->tstats.nrequests;
@@ -373,9 +335,10 @@ tcache_destroy(tsd_t *tsd, tcache_t *tcache)
for (; i < nhbins; i++) {
tcache_bin_t *tbin = &tcache->tbins[i];
tcache_bin_flush_large(tsd, tbin, i, 0, tcache);
tcache_bin_flush_large(tbin, i, 0, tcache);
if (config_stats && tbin->tstats.nrequests != 0) {
arena_t *arena = tcache->arena;
malloc_mutex_lock(&arena->lock);
arena->stats.nrequests_large += tbin->tstats.nrequests;
arena->stats.lstats[i - NBINS].nrequests +=
@@ -385,33 +348,57 @@ tcache_destroy(tsd_t *tsd, tcache_t *tcache)
}
if (config_prof && tcache->prof_accumbytes > 0 &&
arena_prof_accum(arena, tcache->prof_accumbytes))
arena_prof_accum(tcache->arena, tcache->prof_accumbytes))
prof_idump();
idalloctm(tsd, tcache, false, true, true);
tcache_size = arena_salloc(tcache, false);
if (tcache_size <= SMALL_MAXCLASS) {
arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache);
arena_t *arena = chunk->arena;
size_t pageind = ((uintptr_t)tcache - (uintptr_t)chunk) >>
LG_PAGE;
arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind);
arena_dalloc_bin(arena, chunk, tcache, pageind, mapelm);
} else if (tcache_size <= tcache_maxclass) {
arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache);
arena_t *arena = chunk->arena;
arena_dalloc_large(arena, chunk, tcache);
} else
idalloct(tcache, false);
}
void
tcache_cleanup(tsd_t *tsd)
tcache_thread_cleanup(void *arg)
{
tcache_t *tcache;
tcache_t *tcache = *(tcache_t **)arg;
if (!config_tcache)
return;
if ((tcache = tsd_tcache_get(tsd)) != NULL) {
tcache_destroy(tsd, tcache);
tsd_tcache_set(tsd, NULL);
if (tcache == TCACHE_STATE_DISABLED) {
/* Do nothing. */
} else if (tcache == TCACHE_STATE_REINCARNATED) {
/*
* Another destructor called an allocator function after this
* destructor was called. Reset tcache to
* TCACHE_STATE_PURGATORY in order to receive another callback.
*/
tcache = TCACHE_STATE_PURGATORY;
tcache_tsd_set(&tcache);
} else if (tcache == TCACHE_STATE_PURGATORY) {
/*
* The previous time this destructor was called, we set the key
* to TCACHE_STATE_PURGATORY so that other destructors wouldn't
* cause re-creation of the tcache. This time, do nothing, so
* that the destructor will not be called again.
*/
} else if (tcache != NULL) {
assert(tcache != TCACHE_STATE_PURGATORY);
tcache_destroy(tcache);
tcache = TCACHE_STATE_PURGATORY;
tcache_tsd_set(&tcache);
}
}
void
tcache_enabled_cleanup(tsd_t *tsd)
{
/* Do nothing. */
}
/* Caller must own arena->lock. */
void
tcache_stats_merge(tcache_t *tcache, arena_t *arena)
@@ -440,82 +427,22 @@ tcache_stats_merge(tcache_t *tcache, arena_t *arena)
}
bool
tcaches_create(tsd_t *tsd, unsigned *r_ind)
{
tcache_t *tcache;
tcaches_t *elm;
if (tcaches == NULL) {
tcaches = base_alloc(sizeof(tcache_t *) *
(MALLOCX_TCACHE_MAX+1));
if (tcaches == NULL)
return (true);
}
if (tcaches_avail == NULL && tcaches_past > MALLOCX_TCACHE_MAX)
return (true);
tcache = tcache_create(tsd, arena_get(0, false));
if (tcache == NULL)
return (true);
if (tcaches_avail != NULL) {
elm = tcaches_avail;
tcaches_avail = tcaches_avail->next;
elm->tcache = tcache;
*r_ind = (unsigned)(elm - tcaches);
} else {
elm = &tcaches[tcaches_past];
elm->tcache = tcache;
*r_ind = tcaches_past;
tcaches_past++;
}
return (false);
}
static void
tcaches_elm_flush(tsd_t *tsd, tcaches_t *elm)
{
if (elm->tcache == NULL)
return;
tcache_destroy(tsd, elm->tcache);
elm->tcache = NULL;
}
void
tcaches_flush(tsd_t *tsd, unsigned ind)
{
tcaches_elm_flush(tsd, &tcaches[ind]);
}
void
tcaches_destroy(tsd_t *tsd, unsigned ind)
{
tcaches_t *elm = &tcaches[ind];
tcaches_elm_flush(tsd, elm);
elm->next = tcaches_avail;
tcaches_avail = elm;
}
bool
tcache_boot(void)
tcache_boot0(void)
{
unsigned i;
/*
* If necessary, clamp opt_lg_tcache_max, now that large_maxclass is
* If necessary, clamp opt_lg_tcache_max, now that arena_maxclass is
* known.
*/
if (opt_lg_tcache_max < 0 || (1U << opt_lg_tcache_max) < SMALL_MAXCLASS)
tcache_maxclass = SMALL_MAXCLASS;
else if ((1U << opt_lg_tcache_max) > large_maxclass)
tcache_maxclass = large_maxclass;
else if ((1U << opt_lg_tcache_max) > arena_maxclass)
tcache_maxclass = arena_maxclass;
else
tcache_maxclass = (1U << opt_lg_tcache_max);
nhbins = size2index(tcache_maxclass) + 1;
nhbins = NBINS + (tcache_maxclass >> LG_PAGE);
/* Initialize tcache_bin_info. */
tcache_bin_info = (tcache_bin_info_t *)base_alloc(nhbins *
@@ -524,11 +451,7 @@ tcache_boot(void)
return (true);
stack_nelms = 0;
for (i = 0; i < NBINS; i++) {
if ((arena_bin_info[i].nregs << 1) <= TCACHE_NSLOTS_SMALL_MIN) {
tcache_bin_info[i].ncached_max =
TCACHE_NSLOTS_SMALL_MIN;
} else if ((arena_bin_info[i].nregs << 1) <=
TCACHE_NSLOTS_SMALL_MAX) {
if ((arena_bin_info[i].nregs << 1) <= TCACHE_NSLOTS_SMALL_MAX) {
tcache_bin_info[i].ncached_max =
(arena_bin_info[i].nregs << 1);
} else {
@@ -544,3 +467,13 @@ tcache_boot(void)
return (false);
}
bool
tcache_boot1(void)
{
if (tcache_tsd_boot() || tcache_enabled_tsd_boot())
return (true);
return (false);
}

View File

@@ -1,2 +0,0 @@
#define JEMALLOC_TICKER_C_
#include "jemalloc/internal/jemalloc_internal.h"

View File

@@ -7,22 +7,21 @@
static unsigned ncleanups;
static malloc_tsd_cleanup_t cleanups[MALLOC_TSD_CLEANUPS_MAX];
malloc_tsd_data(, , tsd_t, TSD_INITIALIZER)
/******************************************************************************/
void *
malloc_tsd_malloc(size_t size)
{
return (a0malloc(CACHELINE_CEILING(size)));
/* Avoid choose_arena() in order to dodge bootstrapping issues. */
return (arena_malloc(arenas[0], size, false, false));
}
void
malloc_tsd_dalloc(void *wrapper)
{
a0dalloc(wrapper);
idalloct(wrapper, false);
}
void
@@ -68,61 +67,10 @@ malloc_tsd_cleanup_register(bool (*f)(void))
}
void
tsd_cleanup(void *arg)
{
tsd_t *tsd = (tsd_t *)arg;
switch (tsd->state) {
case tsd_state_uninitialized:
/* Do nothing. */
break;
case tsd_state_nominal:
#define O(n, t) \
n##_cleanup(tsd);
MALLOC_TSD
#undef O
tsd->state = tsd_state_purgatory;
tsd_set(tsd);
break;
case tsd_state_purgatory:
/*
* The previous time this destructor was called, we set the
* state to tsd_state_purgatory so that other destructors
* wouldn't cause re-creation of the tsd. This time, do
* nothing, and do not request another callback.
*/
break;
case tsd_state_reincarnated:
/*
* Another destructor deallocated memory after this destructor
* was called. Reset state to tsd_state_purgatory and request
* another callback.
*/
tsd->state = tsd_state_purgatory;
tsd_set(tsd);
break;
default:
not_reached();
}
}
bool
malloc_tsd_boot0(void)
malloc_tsd_boot(void)
{
ncleanups = 0;
if (tsd_boot0())
return (true);
*tsd_arenas_tdata_bypassp_get(tsd_fetch()) = true;
return (false);
}
void
malloc_tsd_boot1(void)
{
tsd_boot1();
*tsd_arenas_tdata_bypassp_get(tsd_fetch()) = false;
}
#ifdef _WIN32
@@ -148,15 +96,13 @@ _tls_callback(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
#ifdef _MSC_VER
# ifdef _M_IX86
# pragma comment(linker, "/INCLUDE:__tls_used")
# pragma comment(linker, "/INCLUDE:_tls_callback")
# else
# pragma comment(linker, "/INCLUDE:_tls_used")
# pragma comment(linker, "/INCLUDE:tls_callback")
# endif
# pragma section(".CRT$XLY",long,read)
#endif
JEMALLOC_SECTION(".CRT$XLY") JEMALLOC_ATTR(used)
BOOL (WINAPI *const tls_callback)(HINSTANCE hinstDLL,
static const BOOL (WINAPI *tls_callback)(HINSTANCE hinstDLL,
DWORD fdwReason, LPVOID lpvReserved) = _tls_callback;
#endif

View File

@@ -1,7 +1,3 @@
/*
* Define simple versions of assertion macros that won't recurse in case
* of assertion failures in malloc_*printf().
*/
#define assert(e) do { \
if (config_debug && !(e)) { \
malloc_write("<jemalloc>: Failed assertion\n"); \
@@ -53,14 +49,10 @@ wrtmessage(void *cbopaque, const char *s)
* Use syscall(2) rather than write(2) when possible in order to avoid
* the possibility of memory allocation within libc. This is necessary
* on FreeBSD; most operating systems do not have this problem though.
*
* syscall() returns long or int, depending on platform, so capture the
* unused result in the widest plausible type to avoid compiler
* warnings.
*/
UNUSED long result = syscall(SYS_write, STDERR_FILENO, s, strlen(s));
UNUSED int result = syscall(SYS_write, STDERR_FILENO, s, strlen(s));
#else
UNUSED ssize_t result = write(STDERR_FILENO, s, strlen(s));
UNUSED int result = write(STDERR_FILENO, s, strlen(s));
#endif
}
@@ -89,10 +81,10 @@ buferror(int err, char *buf, size_t buflen)
{
#ifdef _WIN32
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 0,
(LPSTR)buf, (DWORD)buflen, NULL);
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
(LPSTR)buf, buflen, NULL);
return (0);
#elif defined(__GLIBC__) && defined(_GNU_SOURCE)
#elif defined(_GNU_SOURCE)
char *b = strerror_r(err, buf, buflen);
if (b != buf) {
strncpy(buf, b, buflen);
@@ -108,7 +100,7 @@ uintmax_t
malloc_strtoumax(const char *restrict nptr, char **restrict endptr, int base)
{
uintmax_t ret, digit;
unsigned b;
int b;
bool neg;
const char *p, *ns;
@@ -274,7 +266,7 @@ d2s(intmax_t x, char sign, char *s, size_t *slen_p)
sign = '-';
switch (sign) {
case '-':
if (!neg)
if (neg == false)
break;
/* Fall through. */
case ' ':
@@ -337,7 +329,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
/* Left padding. */ \
size_t pad_len = (width == -1) ? 0 : ((slen < (size_t)width) ? \
(size_t)width - slen : 0); \
if (!left_justify && pad_len != 0) { \
if (left_justify == false && pad_len != 0) { \
size_t j; \
for (j = 0; j < pad_len; j++) \
APPEND_C(' '); \
@@ -389,9 +381,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
case 'p': /* Synthetic; used for %p. */ \
val = va_arg(ap, uintptr_t); \
break; \
default: \
not_reached(); \
val = 0; \
default: not_reached(); \
} \
} while (0)
@@ -414,19 +404,19 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
while (true) {
switch (*f) {
case '#':
assert(!alt_form);
assert(alt_form == false);
alt_form = true;
break;
case '-':
assert(!left_justify);
assert(left_justify == false);
left_justify = true;
break;
case ' ':
assert(!plus_space);
assert(plus_space == false);
plus_space = true;
break;
case '+':
assert(!plus_plus);
assert(plus_plus == false);
plus_plus = true;
break;
default: goto label_width;
@@ -558,7 +548,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
assert(len == '?' || len == 'l');
assert_not_implemented(len != 'l');
s = va_arg(ap, char *);
slen = (prec < 0) ? strlen(s) : (size_t)prec;
slen = (prec < 0) ? strlen(s) : prec;
APPEND_PADDED_S(s, slen, width, left_justify);
f++;
break;
@@ -585,8 +575,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
str[i] = '\0';
else
str[size - 1] = '\0';
assert(i < INT_MAX);
ret = (int)i;
ret = i;
#undef APPEND_C
#undef APPEND_S
@@ -595,7 +584,7 @@ malloc_vsnprintf(char *str, size_t size, const char *format, va_list ap)
return (ret);
}
JEMALLOC_FORMAT_PRINTF(3, 4)
JEMALLOC_ATTR(format(printf, 3, 4))
int
malloc_snprintf(char *str, size_t size, const char *format, ...)
{
@@ -634,7 +623,7 @@ malloc_vcprintf(void (*write_cb)(void *, const char *), void *cbopaque,
* Print to a callback function in such a way as to (hopefully) avoid memory
* allocation.
*/
JEMALLOC_FORMAT_PRINTF(3, 4)
JEMALLOC_ATTR(format(printf, 3, 4))
void
malloc_cprintf(void (*write_cb)(void *, const char *), void *cbopaque,
const char *format, ...)
@@ -647,7 +636,7 @@ malloc_cprintf(void (*write_cb)(void *, const char *), void *cbopaque,
}
/* Print to stderr in such a way as to avoid memory allocation. */
JEMALLOC_FORMAT_PRINTF(1, 2)
JEMALLOC_ATTR(format(printf, 1, 2))
void
malloc_printf(const char *format, ...)
{
@@ -657,12 +646,3 @@ malloc_printf(const char *format, ...)
malloc_vcprintf(NULL, NULL, format, ap);
va_end(ap);
}
/*
* Restore normal assertion macros, in order to make it possible to compile all
* C files as a single concatenation.
*/
#undef assert
#undef not_reached
#undef not_implemented
#include "jemalloc/internal/assert.h"

View File

@@ -1,34 +0,0 @@
#include "jemalloc/internal/jemalloc_internal.h"
#ifndef JEMALLOC_VALGRIND
# error "This source file is for Valgrind integration."
#endif
#include <valgrind/memcheck.h>
void
valgrind_make_mem_noaccess(void *ptr, size_t usize)
{
VALGRIND_MAKE_MEM_NOACCESS(ptr, usize);
}
void
valgrind_make_mem_undefined(void *ptr, size_t usize)
{
VALGRIND_MAKE_MEM_UNDEFINED(ptr, usize);
}
void
valgrind_make_mem_defined(void *ptr, size_t usize)
{
VALGRIND_MAKE_MEM_DEFINED(ptr, usize);
}
void
valgrind_freelike_block(void *ptr, size_t usize)
{
VALGRIND_FREELIKE_BLOCK(ptr, usize);
}

View File

@@ -121,11 +121,9 @@ zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size)
static void
zone_free_definite_size(malloc_zone_t *zone, void *ptr, size_t size)
{
size_t alloc_size;
alloc_size = ivsalloc(ptr, config_prof);
if (alloc_size != 0) {
assert(alloc_size == size);
if (ivsalloc(ptr, config_prof) != 0) {
assert(ivsalloc(ptr, config_prof) == size);
je_free(ptr);
return;
}
@@ -178,7 +176,6 @@ register_zone(void)
* register jemalloc's.
*/
malloc_zone_t *default_zone = malloc_default_zone();
malloc_zone_t *purgeable_zone = NULL;
if (!default_zone->zone_name ||
strcmp(default_zone->zone_name, "DefaultMallocZone") != 0) {
return;
@@ -240,37 +237,22 @@ register_zone(void)
* run time.
*/
if (malloc_default_purgeable_zone != NULL)
purgeable_zone = malloc_default_purgeable_zone();
malloc_default_purgeable_zone();
/* Register the custom zone. At this point it won't be the default. */
malloc_zone_register(&zone);
/*
* Unregister and reregister the default zone. On OSX >= 10.6,
* unregistering takes the last registered zone and places it at the
* location of the specified zone. Unregistering the default zone thus
* makes the last registered one the default. On OSX < 10.6,
* unregistering shifts all registered zones. The first registered zone
* then becomes the default.
*/
do {
default_zone = malloc_default_zone();
/*
* Unregister and reregister the default zone. On OSX >= 10.6,
* unregistering takes the last registered zone and places it
* at the location of the specified zone. Unregistering the
* default zone thus makes the last registered one the default.
* On OSX < 10.6, unregistering shifts all registered zones.
* The first registered zone then becomes the default.
*/
malloc_zone_unregister(default_zone);
malloc_zone_register(default_zone);
/*
* On OSX 10.6, having the default purgeable zone appear before
* the default zone makes some things crash because it thinks it
* owns the default zone allocated pointers. We thus
* unregister/re-register it in order to ensure it's always
* after the default zone. On OSX < 10.6, there is no purgeable
* zone, so this does nothing. On OSX >= 10.6, unregistering
* replaces the purgeable zone with the last registered zone
* above, i.e. the default zone. Registering it again then puts
* it at the end, obviously after the default zone.
*/
if (purgeable_zone) {
malloc_zone_unregister(purgeable_zone);
malloc_zone_register(purgeable_zone);
}
} while (malloc_default_zone() != &zone);
}

View File

@@ -1,31 +0,0 @@
/* btalloc() provides a mechanism for allocating via permuted backtraces. */
void *btalloc(size_t size, unsigned bits);
#define btalloc_n_proto(n) \
void *btalloc_##n(size_t size, unsigned bits);
btalloc_n_proto(0)
btalloc_n_proto(1)
#define btalloc_n_gen(n) \
void * \
btalloc_##n(size_t size, unsigned bits) \
{ \
void *p; \
\
if (bits == 0) \
p = mallocx(size, 0); \
else { \
switch (bits & 0x1U) { \
case 0: \
p = (btalloc_0(size, bits >> 1)); \
break; \
case 1: \
p = (btalloc_1(size, bits >> 1)); \
break; \
default: not_reached(); \
} \
} \
/* Intentionally sabotage tail call optimization. */ \
assert_ptr_not_null(p, "Unexpected mallocx() failure"); \
return (p); \
}

View File

@@ -1,20 +1,13 @@
#include <limits.h>
#ifndef SIZE_T_MAX
# define SIZE_T_MAX SIZE_MAX
#endif
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <errno.h>
#include <inttypes.h>
#include <math.h>
#include <string.h>
#ifdef _WIN32
# include "msvc_compat/strings.h"
#endif
#ifdef _WIN32
# include <windows.h>
# include "msvc_compat/windows_extra.h"
#else
# include <pthread.h>
#endif
@@ -93,7 +86,6 @@
# define JEMALLOC_H_STRUCTS
# define JEMALLOC_H_EXTERNS
# define JEMALLOC_H_INLINES
# include "jemalloc/internal/nstime.h"
# include "jemalloc/internal/util.h"
# include "jemalloc/internal/qr.h"
# include "jemalloc/internal/ql.h"
@@ -140,12 +132,10 @@
/*
* Common test utilities.
*/
#include "test/btalloc.h"
#include "test/math.h"
#include "test/mtx.h"
#include "test/mq.h"
#include "test/test.h"
#include "test/timer.h"
#include "test/thd.h"
#define MEXP 19937
#include "test/SFMT.h"

View File

@@ -1,9 +1,5 @@
#include "jemalloc/internal/jemalloc_internal_defs.h"
#include "jemalloc/internal/jemalloc_internal_decls.h"
/*
* For use by SFMT. configure.ac doesn't actually define HAVE_SSE2 because its
* dependencies are notoriously unportable in practice.
*/
/* For use by SFMT. */
#undef HAVE_SSE2
#undef HAVE_ALTIVEC

View File

@@ -299,7 +299,7 @@ pt_chi2(double p, double df, double ln_gamma_df_2)
/*
* Given a value p in [0..1] and Gamma distribution shape and scale parameters,
* compute the upper limit on the definite integral from [0..z] that satisfies
* compute the upper limit on the definite integeral from [0..z] that satisfies
* p.
*/
JEMALLOC_INLINE double

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