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Fix a profiling bootstrap bug.

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Bootstrap profiling in three stages, so that it is usable by the time
the first application allocation occurs.
This commit is contained in:
Jason Evans 2010-02-11 08:59:06 -08:00
parent b27805b363
commit 3383af6c2d
3 changed files with 25 additions and 13 deletions
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1
jemalloc/src/internal/prof.h
View file

@ -135,6 +135,7 @@ void prof_mdump(void);
void prof_udump(void);
void prof_boot0(void);
bool prof_boot1(void);
void prof_boot2(void);
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/

20
jemalloc/src/jemalloc.c
View file

@ -636,10 +636,6 @@ MALLOC_OUT:
}
}
#ifdef JEMALLOC_PROF
prof_boot0();
#endif
/* Register fork handlers. */
if (pthread_atfork(jemalloc_prefork, jemalloc_postfork,
jemalloc_postfork) != 0) {
@ -682,6 +678,10 @@ MALLOC_OUT:
return (true);
}
#ifdef JEMALLOC_PROF
prof_boot0();
#endif
if (arena_boot()) {
malloc_mutex_unlock(&init_lock);
return (true);
@ -725,6 +725,13 @@ MALLOC_OUT:
malloc_mutex_init(&arenas_lock);
#ifdef JEMALLOC_PROF
if (prof_boot1()) {
malloc_mutex_unlock(&init_lock);
return (true);
}
#endif
/* Get number of CPUs. */
malloc_initializer = pthread_self();
malloc_mutex_unlock(&init_lock);
@ -816,10 +823,7 @@ MALLOC_OUT:
#endif
#ifdef JEMALLOC_PROF
if (prof_boot1()) {
malloc_mutex_unlock(&init_lock);
return (true);
}
prof_boot2();
#endif
/* Allocate and initialize arenas. */

17
jemalloc/src/prof.c
View file

@ -1043,11 +1043,6 @@ prof_boot1(void)
{
if (opt_prof) {
/*
* Finish initializing prof_interval, now that narenas is set.
*/
prof_interval /= narenas;
if (ckh_new(&bt2ctx, PROF_CKH_MINITEMS, prof_bt_hash,
prof_bt_keycomp))
return (true);
@ -1090,5 +1085,17 @@ prof_boot1(void)
return (false);
}
void
prof_boot2(void)
{
if (opt_prof) {
/*
* Finish initializing prof_interval, now that narenas is set.
*/
prof_interval /= narenas;
}
}
/******************************************************************************/
#endif /* JEMALLOC_PROF */