lihao/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-24 13:53:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

Avoid arena_prof_accum()-related locking when possible.

Browse Source 
Refactor arena_prof_accum() and its callers to avoid arena locking when
prof_interval is 0 (as when profiling is disabled).

Reported by Ben Maurer.
This commit is contained in:
Jason Evans
2012-11-13 12:56:27 -08:00
parent 556ddc7fa9
commit a3b3386ddd
5 changed files with 50 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/tcache.c
View File

@@ -97,9 +97,7 @@ tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
arena_bin_t *bin = &arena->bins[binind];
if (config_prof && arena == tcache->arena) {
malloc_mutex_lock(&arena->lock);
arena_prof_accum(arena, tcache->prof_accumbytes);
malloc_mutex_unlock(&arena->lock);
tcache->prof_accumbytes = 0;
}
@@ -180,7 +178,7 @@ tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem,
malloc_mutex_lock(&arena->lock);
if ((config_prof || config_stats) && arena == tcache->arena) {
if (config_prof) {
arena_prof_accum(arena,
arena_prof_accum_locked(arena,
tcache->prof_accumbytes);
tcache->prof_accumbytes = 0;
}
@@ -343,11 +341,8 @@ tcache_destroy(tcache_t *tcache)
}
}
if (config_prof && tcache->prof_accumbytes > 0) {
malloc_mutex_lock(&tcache->arena->lock);
if (config_prof && tcache->prof_accumbytes > 0)
arena_prof_accum(tcache->arena, tcache->prof_accumbytes);
malloc_mutex_unlock(&tcache->arena->lock);
}
tcache_size = arena_salloc(tcache, false);
if (tcache_size <= SMALL_MAXCLASS) {