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Introduce decay module and put decay objects in PA

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This commit is contained in:
David Goldblatt
2020-03-09 13:11:35 -07:00
committed by David Goldblatt
parent 497836dbc8
commit 7b62885476
9 changed files with 181 additions and 173 deletions
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18
src/background_thread.c
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@@ -55,7 +55,7 @@ bool background_thread_create(tsd_t *tsd, unsigned arena_ind) NOT_REACHED
bool background_threads_enable(tsd_t *tsd) NOT_REACHED
bool background_threads_disable(tsd_t *tsd) NOT_REACHED
void background_thread_interval_check(tsdn_t *tsdn, arena_t *arena,
arena_decay_t *decay, size_t npages_new) NOT_REACHED
decay_t *decay, size_t npages_new) NOT_REACHED
void background_thread_prefork0(tsdn_t *tsdn) NOT_REACHED
void background_thread_prefork1(tsdn_t *tsdn) NOT_REACHED
void background_thread_postfork_parent(tsdn_t *tsdn) NOT_REACHED
@@ -99,7 +99,7 @@ set_current_thread_affinity(int cpu) {
#define BACKGROUND_THREAD_MIN_INTERVAL_NS (BILLION / 10)
static inline size_t
decay_npurge_after_interval(arena_decay_t *decay, size_t interval) {
decay_npurge_after_interval(decay_t *decay, size_t interval) {
size_t i;
uint64_t sum = 0;
for (i = 0; i < interval; i++) {
@@ -113,7 +113,7 @@ decay_npurge_after_interval(arena_decay_t *decay, size_t interval) {
}
static uint64_t
arena_decay_compute_purge_interval_impl(tsdn_t *tsdn, arena_decay_t *decay,
arena_decay_compute_purge_interval_impl(tsdn_t *tsdn, decay_t *decay,
ecache_t *ecache) {
if (malloc_mutex_trylock(tsdn, &decay->mtx)) {
/* Use minimal interval if decay is contended. */
@@ -201,13 +201,13 @@ label_done:
static uint64_t
arena_decay_compute_purge_interval(tsdn_t *tsdn, arena_t *arena) {
uint64_t i1, i2;
i1 = arena_decay_compute_purge_interval_impl(tsdn, &arena->decay_dirty,
&arena->pa_shard.ecache_dirty);
i1 = arena_decay_compute_purge_interval_impl(tsdn,
&arena->pa_shard.decay_dirty, &arena->pa_shard.ecache_dirty);
if (i1 == BACKGROUND_THREAD_MIN_INTERVAL_NS) {
return i1;
}
i2 = arena_decay_compute_purge_interval_impl(tsdn, &arena->decay_muzzy,
&arena->pa_shard.ecache_muzzy);
i2 = arena_decay_compute_purge_interval_impl(tsdn,
&arena->pa_shard.decay_muzzy, &arena->pa_shard.ecache_muzzy);
return i1 < i2 ? i1 : i2;
}
@@ -653,8 +653,8 @@ background_threads_disable(tsd_t *tsd) {
/* Check if we need to signal the background thread early. */
void
background_thread_interval_check(tsdn_t *tsdn, arena_t *arena,
arena_decay_t *decay, size_t npages_new) {
background_thread_interval_check(tsdn_t *tsdn, arena_t *arena, decay_t *decay,
size_t npages_new) {
background_thread_info_t *info = arena_background_thread_info_get(
arena);
if (malloc_mutex_trylock(tsdn, &info->mtx)) {