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PA->PAC: Move in decay functions.

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This commit is contained in:
David Goldblatt
2020-06-03 14:43:28 -07:00
committed by David Goldblatt
parent 4ee75be3a3
commit 6a2774719f
6 changed files with 230 additions and 44 deletions
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33
include/jemalloc/internal/pa.h
View File

@@ -137,39 +137,6 @@ bool pa_shrink(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata, size_t old_size,
void pa_dalloc(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata,
bool *generated_dirty);
/*
* All purging functions require holding decay->mtx. This is one of the few
* places external modules are allowed to peek inside pa_shard_t internals.
*/
/*
* Decays the number of pages currently in the ecache. This might not leave the
* ecache empty if other threads are inserting dirty objects into it
* concurrently with the call.
*/
void pa_decay_all(tsdn_t *tsdn, pa_shard_t *shard, decay_t *decay,
pac_decay_stats_t *decay_stats, ecache_t *ecache, bool fully_decay);
/*
* Updates decay settings for the current time, and conditionally purges in
* response (depending on decay_purge_setting). Returns whether or not the
* epoch advanced.
*/
bool pa_maybe_decay_purge(tsdn_t *tsdn, pa_shard_t *shard, decay_t *decay,
pac_decay_stats_t *decay_stats, ecache_t *ecache,
pac_decay_purge_setting_t decay_purge_setting);
/*
* Gets / sets the maximum amount that we'll grow an arena down the
* grow-retained pathways (unless forced to by an allocaction request).
*
* Set new_limit to NULL if it's just a query, or old_limit to NULL if you don't
* care about the previous value.
*
* Returns true on error (if the new limit is not valid).
*/
bool pa_shard_retain_grow_limit_get_set(tsdn_t *tsdn, pa_shard_t *shard,
size_t *old_limit, size_t *new_limit);
/******************************************************************************/
/*
* Various bits of "boring" functionality that are still part of this module,

36
include/jemalloc/internal/pac.h
View File

@@ -81,6 +81,7 @@ struct pac_s {
ecache_t ecache_muzzy;
ecache_t ecache_retained;
base_t *base;
emap_t *emap;
edata_cache_t *edata_cache;
@@ -103,7 +104,7 @@ struct pac_s {
atomic_zu_t extent_sn_next;
};
bool pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind, emap_t *emap,
bool pac_init(tsdn_t *tsdn, pac_t *pac, base_t *base, emap_t *emap,
edata_cache_t *edata_cache, nstime_t *cur_time, ssize_t dirty_decay_ms,
ssize_t muzzy_decay_ms, pac_stats_t *pac_stats, malloc_mutex_t *stats_mtx);
bool pac_retain_grow_limit_get_set(tsdn_t *tsdn, pac_t *pac, size_t *old_limit,
@@ -126,4 +127,37 @@ pac_mapped(pac_t *pac) {
return atomic_load_zu(&pac->stats->pac_mapped, ATOMIC_RELAXED);
}
/*
* All purging functions require holding decay->mtx. This is one of the few
* places external modules are allowed to peek inside pa_shard_t internals.
*/
/*
* Decays the number of pages currently in the ecache. This might not leave the
* ecache empty if other threads are inserting dirty objects into it
* concurrently with the call.
*/
void pac_decay_all(tsdn_t *tsdn, pac_t *pac, decay_t *decay,
pac_decay_stats_t *decay_stats, ecache_t *ecache, bool fully_decay);
/*
* Updates decay settings for the current time, and conditionally purges in
* response (depending on decay_purge_setting). Returns whether or not the
* epoch advanced.
*/
bool pac_maybe_decay_purge(tsdn_t *tsdn, pac_t *pac, decay_t *decay,
pac_decay_stats_t *decay_stats, ecache_t *ecache,
pac_decay_purge_setting_t decay_purge_setting);
/*
* Gets / sets the maximum amount that we'll grow an arena down the
* grow-retained pathways (unless forced to by an allocaction request).
*
* Set new_limit to NULL if it's just a query, or old_limit to NULL if you don't
* care about the previous value.
*
* Returns true on error (if the new limit is not valid).
*/
bool pac_retain_grow_limit_get_set(tsdn_t *tsdn, pac_t *pac, size_t *old_limit,
size_t *new_limit);
#endif /* JEMALLOC_INTERNAL_PAC_H */