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#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/jemalloc_internal_includes.h"
/*
* This file is logically part of the PA module. While pa.c contains the core
* allocator functionality, this file contains boring integration functionality;
* things like the pre- and post- fork handlers, and stats merging for CTL
* refreshes.
*/
void
pa_shard_prefork0(tsdn_t *tsdn, pa_shard_t *shard) {
malloc_mutex_prefork(tsdn, &shard->pac.decay_dirty.mtx);
malloc_mutex_prefork(tsdn, &shard->pac.decay_muzzy.mtx);
}
void
pa_shard_prefork2(tsdn_t *tsdn, pa_shard_t *shard) {
if (shard->ever_used_hpa) {
sec_prefork2(tsdn, &shard->hpa_sec);
}
}
void
pa_shard_prefork3(tsdn_t *tsdn, pa_shard_t *shard) {
malloc_mutex_prefork(tsdn, &shard->pac.grow_mtx);
if (shard->ever_used_hpa) {
hpa_shard_prefork3(tsdn, &shard->hpa_shard);
}
}
void
pa_shard_prefork4(tsdn_t *tsdn, pa_shard_t *shard) {
ecache_prefork(tsdn, &shard->pac.ecache_dirty);
ecache_prefork(tsdn, &shard->pac.ecache_muzzy);
ecache_prefork(tsdn, &shard->pac.ecache_retained);
if (shard->ever_used_hpa) {
hpa_shard_prefork4(tsdn, &shard->hpa_shard);
}
}
void
pa_shard_prefork5(tsdn_t *tsdn, pa_shard_t *shard) {
edata_cache_prefork(tsdn, &shard->edata_cache);
}
void
pa_shard_postfork_parent(tsdn_t *tsdn, pa_shard_t *shard) {
edata_cache_postfork_parent(tsdn, &shard->edata_cache);
ecache_postfork_parent(tsdn, &shard->pac.ecache_dirty);
ecache_postfork_parent(tsdn, &shard->pac.ecache_muzzy);
ecache_postfork_parent(tsdn, &shard->pac.ecache_retained);
malloc_mutex_postfork_parent(tsdn, &shard->pac.grow_mtx);
malloc_mutex_postfork_parent(tsdn, &shard->pac.decay_dirty.mtx);
malloc_mutex_postfork_parent(tsdn, &shard->pac.decay_muzzy.mtx);
if (shard->ever_used_hpa) {
sec_postfork_parent(tsdn, &shard->hpa_sec);
hpa_shard_postfork_parent(tsdn, &shard->hpa_shard);
}
}
void
pa_shard_postfork_child(tsdn_t *tsdn, pa_shard_t *shard) {
edata_cache_postfork_child(tsdn, &shard->edata_cache);
ecache_postfork_child(tsdn, &shard->pac.ecache_dirty);
ecache_postfork_child(tsdn, &shard->pac.ecache_muzzy);
ecache_postfork_child(tsdn, &shard->pac.ecache_retained);
malloc_mutex_postfork_child(tsdn, &shard->pac.grow_mtx);
malloc_mutex_postfork_child(tsdn, &shard->pac.decay_dirty.mtx);
malloc_mutex_postfork_child(tsdn, &shard->pac.decay_muzzy.mtx);
if (shard->ever_used_hpa) {
sec_postfork_child(tsdn, &shard->hpa_sec);
hpa_shard_postfork_child(tsdn, &shard->hpa_shard);
}
}
void
pa_shard_basic_stats_merge(pa_shard_t *shard, size_t *nactive, size_t *ndirty,
size_t *nmuzzy) {
*nactive += atomic_load_zu(&shard->nactive, ATOMIC_RELAXED);
*ndirty += ecache_npages_get(&shard->pac.ecache_dirty);
*nmuzzy += ecache_npages_get(&shard->pac.ecache_muzzy);
}
void
pa_shard_stats_merge(tsdn_t *tsdn, pa_shard_t *shard,
pa_shard_stats_t *pa_shard_stats_out, pac_estats_t *estats_out,
hpa_shard_stats_t *hpa_stats_out, sec_stats_t *sec_stats_out,
size_t *resident) {
cassert(config_stats);
pa_shard_stats_out->pac_stats.retained +=
ecache_npages_get(&shard->pac.ecache_retained) << LG_PAGE;
pa_shard_stats_out->edata_avail += atomic_load_zu(
&shard->edata_cache.count, ATOMIC_RELAXED);
size_t resident_pgs = 0;
resident_pgs += atomic_load_zu(&shard->nactive, ATOMIC_RELAXED);
resident_pgs += ecache_npages_get(&shard->pac.ecache_dirty);
*resident += (resident_pgs << LG_PAGE);
/* Dirty decay stats */
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_dirty.npurge,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_dirty.npurge));
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_dirty.nmadvise,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_dirty.nmadvise));
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_dirty.purged,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_dirty.purged));
/* Muzzy decay stats */
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_muzzy.npurge,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_muzzy.npurge));
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_muzzy.nmadvise,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_muzzy.nmadvise));
locked_inc_u64_unsynchronized(
&pa_shard_stats_out->pac_stats.decay_muzzy.purged,
locked_read_u64(tsdn, LOCKEDINT_MTX(*shard->stats_mtx),
&shard->pac.stats->decay_muzzy.purged));
atomic_load_add_store_zu(&pa_shard_stats_out->pac_stats.abandoned_vm,
atomic_load_zu(&shard->pac.stats->abandoned_vm, ATOMIC_RELAXED));
for (pszind_t i = 0; i < SC_NPSIZES; i++) {
size_t dirty, muzzy, retained, dirty_bytes, muzzy_bytes,
retained_bytes;
dirty = ecache_nextents_get(&shard->pac.ecache_dirty, i);
muzzy = ecache_nextents_get(&shard->pac.ecache_muzzy, i);
retained = ecache_nextents_get(&shard->pac.ecache_retained, i);
dirty_bytes = ecache_nbytes_get(&shard->pac.ecache_dirty, i);
muzzy_bytes = ecache_nbytes_get(&shard->pac.ecache_muzzy, i);
retained_bytes = ecache_nbytes_get(&shard->pac.ecache_retained,
i);
estats_out[i].ndirty = dirty;
estats_out[i].nmuzzy = muzzy;
estats_out[i].nretained = retained;
estats_out[i].dirty_bytes = dirty_bytes;
estats_out[i].muzzy_bytes = muzzy_bytes;
estats_out[i].retained_bytes = retained_bytes;
}
if (shard->ever_used_hpa) {
hpa_shard_stats_merge(tsdn, &shard->hpa_shard, hpa_stats_out);
sec_stats_merge(tsdn, &shard->hpa_sec, sec_stats_out);
}
}
static void
pa_shard_mtx_stats_read_single(tsdn_t *tsdn, mutex_prof_data_t *mutex_prof_data,
malloc_mutex_t *mtx, int ind) {
malloc_mutex_lock(tsdn, mtx);
malloc_mutex_prof_read(tsdn, &mutex_prof_data[ind], mtx);
malloc_mutex_unlock(tsdn, mtx);
}
void
pa_shard_mtx_stats_read(tsdn_t *tsdn, pa_shard_t *shard,
mutex_prof_data_t mutex_prof_data[mutex_prof_num_arena_mutexes]) {
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->edata_cache.mtx, arena_prof_mutex_extent_avail);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->pac.ecache_dirty.mtx, arena_prof_mutex_extents_dirty);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->pac.ecache_muzzy.mtx, arena_prof_mutex_extents_muzzy);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->pac.ecache_retained.mtx, arena_prof_mutex_extents_retained);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->pac.decay_dirty.mtx, arena_prof_mutex_decay_dirty);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->pac.decay_muzzy.mtx, arena_prof_mutex_decay_muzzy);
if (shard->ever_used_hpa) {
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->hpa_shard.mtx, arena_prof_mutex_hpa_shard);
pa_shard_mtx_stats_read_single(tsdn, mutex_prof_data,
&shard->hpa_shard.grow_mtx,
arena_prof_mutex_hpa_shard_grow);
sec_mutex_stats_read(tsdn, &shard->hpa_sec,
&mutex_prof_data[arena_prof_mutex_hpa_sec]);
}
}
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