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server-skynet-source-3rd-je.../include/jemalloc/internal/background_thread_externs.h

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Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
#ifndef JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H
#define JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H
extern bool opt_background_thread;
background_thread: add max thread count config Looking at the thread counts in our services, jemalloc's background thread is useful, but mostly idle. Add a config option to tune down the number of threads.
2018-03-30 03:58:13 +08:00
extern size_t opt_max_background_threads;
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
extern malloc_mutex_t background_thread_lock;
extern atomic_b_t background_thread_enabled_state;
extern size_t n_background_threads;
background_thread: add max thread count config Looking at the thread counts in our services, jemalloc's background thread is useful, but mostly idle. Add a config option to tune down the number of threads.
2018-03-30 03:58:13 +08:00
extern size_t max_background_threads;
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
extern background_thread_info_t *background_thread_info;
bool background_thread_create(tsd_t *tsd, unsigned arena_ind);
bool background_threads_enable(tsd_t *tsd);
bool background_threads_disable(tsd_t *tsd);
Wake up background threads on demand This change allows every allocator conforming to PAI communicate that it deferred some work for the future. Without it if a background thread goes into indefinite sleep, there is no way to notify it about upcoming deferred work.
2021-08-19 10:24:37 +08:00
bool background_thread_is_started(background_thread_info_t* info);
Allow PAI to calculate time until deferred work Previously the calculation of sleep time between wakeups was implemented within background_thread. This resulted in some parts of decay and hpa specific logic mixing with background thread implementation. In this change, background thread delegates this calculation to arena and it, in turn, delegates it to PAI. The next step is to implement the actual calculation of time until deferred work in HPA.
2021-08-07 05:53:05 +08:00
void background_thread_wakeup_early(background_thread_info_t *info,
nstime_t *remaining_sleep);
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
void background_thread_prefork0(tsdn_t *tsdn);
void background_thread_prefork1(tsdn_t *tsdn);
void background_thread_postfork_parent(tsdn_t *tsdn);
void background_thread_postfork_child(tsdn_t *tsdn);
Add background thread related stats.
2017-05-13 03:30:33 +08:00
bool background_thread_stats_read(tsdn_t *tsdn,
background_thread_stats_t *stats);
Set isthreaded when enabling background_thread.
2017-06-02 03:52:09 +08:00
void background_thread_ctl_init(tsdn_t *tsdn);
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
Refactor/fix background_thread/percpu_arena bootstrapping. Refactor bootstrapping such that dlsym() is called during the bootstrapping phase that can tolerate reentrant allocation.
2017-06-01 07:45:14 +08:00
#ifdef JEMALLOC_PTHREAD_CREATE_WRAPPER
extern int pthread_create_wrapper(pthread_t *__restrict, const pthread_attr_t *,
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
void *(*)(void *), void *__restrict);
#endif
Refactor/fix background_thread/percpu_arena bootstrapping. Refactor bootstrapping such that dlsym() is called during the bootstrapping phase that can tolerate reentrant allocation.
2017-06-01 07:45:14 +08:00
bool background_thread_boot0(void);
Background thread: take base as a parameter.
2020-02-18 06:13:38 +08:00
bool background_thread_boot1(tsdn_t *tsdn, base_t *base);
Implementing opt.background_thread. Added opt.background_thread to enable background threads, which handles purging currently. When enabled, decay ticks will not trigger purging (which will be left to the background threads). We limit the max number of threads to NCPUs. When percpu arena is enabled, set CPU affinity for the background threads as well. The sleep interval of background threads is dynamic and determined by computing number of pages to purge in the future (based on backlog).
2017-03-18 03:42:33 +08:00
#endif /* JEMALLOC_INTERNAL_BACKGROUND_THREAD_EXTERNS_H */
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