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| author | Jason Evans <jasone@canonware.com> | 2015-01-25 21:16:57 -0800 |
|---|---|---|
| committer | Jason Evans <jasone@canonware.com> | 2015-01-25 21:21:35 -0800 |
| commit | 5b8ed5b7c91939f64f14fc48be84ed20e3f023f4 (patch) | |
| tree | 27e35ebb42a1fa6e5dbe7f234624ed7c5362a349 /include/jemalloc/internal/prof.h | |
| parent | 41f2e692f664da683ae694b17630f5e186aa454c (diff) | |
| download | jemalloc-5b8ed5b7c91939f64f14fc48be84ed20e3f023f4.tar.gz | |
Implement the prof.gdump mallctl.
This feature makes it possible to toggle the gdump feature on/off during
program execution, whereas the the opt.prof_dump mallctl value can only
be set during program startup.
This resolves #72.
Diffstat (limited to 'include/jemalloc/internal/prof.h')
| -rw-r--r-- | include/jemalloc/internal/prof.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/jemalloc/internal/prof.h b/include/jemalloc/internal/prof.h index e081884..b2db685 100644 --- a/include/jemalloc/internal/prof.h +++ b/include/jemalloc/internal/prof.h @@ -239,6 +239,9 @@ extern char opt_prof_prefix[ /* 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 @@ -285,6 +288,8 @@ 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); void prof_boot0(void); void prof_boot1(void); bool prof_boot2(void); @@ -299,6 +304,7 @@ void prof_sample_threshold_update(prof_tdata_t *tdata); #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); @@ -327,6 +333,18 @@ prof_active_get_unlocked(void) return (prof_active); } +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) { |