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PAC: Move in decay rate setting.

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This commit is contained in:
David Goldblatt
2020-06-03 18:30:33 -07:00
committed by David Goldblatt
parent 6a2774719f
commit 471eb5913c
9 changed files with 126 additions and 149 deletions
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7
include/jemalloc/internal/arena_externs.h
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@@ -40,10 +40,9 @@ void arena_extent_ralloc_large_shrink(tsdn_t *tsdn, arena_t *arena,
edata_t *edata, size_t oldsize);
void arena_extent_ralloc_large_expand(tsdn_t *tsdn, arena_t *arena,
edata_t *edata, size_t oldsize);
ssize_t arena_dirty_decay_ms_get(arena_t *arena);
bool arena_dirty_decay_ms_set(tsdn_t *tsdn, arena_t *arena, ssize_t decay_ms);
ssize_t arena_muzzy_decay_ms_get(arena_t *arena);
bool arena_muzzy_decay_ms_set(tsdn_t *tsdn, arena_t *arena, ssize_t decay_ms);
bool arena_decay_ms_set(tsdn_t *tsdn, arena_t *arena, extent_state_t state,
ssize_t decay_ms);
ssize_t arena_decay_ms_get(arena_t *arena, extent_state_t state);
void arena_decay(tsdn_t *tsdn, arena_t *arena, bool is_background_thread,
bool all);
void arena_reset(tsd_t *tsd, arena_t *arena);

6
include/jemalloc/internal/pa.h
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@@ -90,7 +90,7 @@ struct pa_shard_s {
static inline bool
pa_shard_dont_decay_muzzy(pa_shard_t *shard) {
return ecache_npages_get(&shard->pac.ecache_muzzy) == 0 &&
pac_muzzy_decay_ms_get(&shard->pac) <= 0;
pac_decay_ms_get(&shard->pac, extent_state_muzzy) <= 0;
}
static inline ehooks_t *
@@ -137,6 +137,10 @@ 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);
bool pa_decay_ms_set(tsdn_t *tsdn, pa_shard_t *shard, extent_state_t state,
ssize_t decay_ms, pac_purge_eagerness_t eagerness);
ssize_t pa_decay_ms_get(pa_shard_t *shard, extent_state_t state);
/******************************************************************************/
/*
* Various bits of "boring" functionality that are still part of this module,

25
include/jemalloc/internal/pac.h
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@@ -10,12 +10,12 @@
*/
/* How "eager" decay/purging should be. */
enum pac_decay_purge_setting_e {
PAC_DECAY_PURGE_ALWAYS,
PAC_DECAY_PURGE_NEVER,
PAC_DECAY_PURGE_ON_EPOCH_ADVANCE
enum pac_purge_eagerness_e {
PAC_PURGE_ALWAYS,
PAC_PURGE_NEVER,
PAC_PURGE_ON_EPOCH_ADVANCE
};
typedef enum pac_decay_purge_setting_e pac_decay_purge_setting_t;
typedef enum pac_purge_eagerness_e pac_purge_eagerness_t;
typedef struct pac_decay_stats_s pac_decay_stats_t;
struct pac_decay_stats_s {
@@ -112,16 +112,6 @@ bool pac_retain_grow_limit_get_set(tsdn_t *tsdn, pac_t *pac, size_t *old_limit,
void pac_stats_merge(tsdn_t *tsdn, pac_t *pac, pac_stats_t *pac_stats_out,
pac_estats_t *estats_out, size_t *resident);
static inline ssize_t
pac_dirty_decay_ms_get(pac_t *pac) {
return decay_ms_read(&pac->decay_dirty);
}
static inline ssize_t
pac_muzzy_decay_ms_get(pac_t *pac) {
return decay_ms_read(&pac->decay_muzzy);
}
static inline size_t
pac_mapped(pac_t *pac) {
return atomic_load_zu(&pac->stats->pac_mapped, ATOMIC_RELAXED);
@@ -146,7 +136,7 @@ void pac_decay_all(tsdn_t *tsdn, pac_t *pac, decay_t *decay,
*/
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);
pac_purge_eagerness_t eagerness);
/*
* Gets / sets the maximum amount that we'll grow an arena down the
@@ -160,4 +150,7 @@ bool pac_maybe_decay_purge(tsdn_t *tsdn, pac_t *pac, decay_t *decay,
bool pac_retain_grow_limit_get_set(tsdn_t *tsdn, pac_t *pac, size_t *old_limit,
size_t *new_limit);
bool pac_decay_ms_set(tsdn_t *tsdn, pac_t *pac, extent_state_t state,
ssize_t decay_ms, pac_purge_eagerness_t eagerness);
ssize_t pac_decay_ms_get(pac_t *pac, extent_state_t state);
#endif /* JEMALLOC_INTERNAL_PAC_H */