lihao/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-23 21:23:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use CLOCK_MONOTONIC_COARSE rather than COARSE_MONOTONIC_RAW.

Browse Source 
The raw clock variant is slow (even relative to plain CLOCK_MONOTONIC),
whereas the coarse clock variant is faster than CLOCK_MONOTONIC, but
still has resolution (~1ms) that is adequate for our purposes.

This resolves #479.
This commit is contained in:
Jason Evans
2016-10-29 22:55:08 -07:00
parent d87037a62c
commit 6c80321aed
3 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
configure.ac
View File

@@ -1312,16 +1312,16 @@ if test "x$je_cv_cray_prgenv_wrapper" = "xyes" ; then
fi
fi
dnl check for CLOCK_MONOTONIC_RAW (Linux-specific).
JE_COMPILABLE([clock_gettime(CLOCK_MONOTONIC_RAW, ...)], [
dnl check for CLOCK_MONOTONIC_COARSE (Linux-specific).
JE_COMPILABLE([clock_gettime(CLOCK_MONOTONIC_COARSE, ...)], [
#include <time.h>
], [
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
], [je_cv_clock_monotonic_raw])
if test "x${je_cv_clock_monotonic_raw}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_CLOCK_MONOTONIC_RAW])
clock_gettime(CLOCK_MONOTONIC_COARSE, &ts);
], [je_cv_clock_monotonic_coarse])
if test "x${je_cv_clock_monotonic_coarse}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE])
fi
dnl check for CLOCK_MONOTONIC.