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PA: Move in the ecache_t objects.

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This commit is contained in:
David Goldblatt 2020-03-08 10:35:56 -07:00 committed by David Goldblatt
parent 585f925055
commit a24faed569
7 changed files with 102 additions and 85 deletions
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12
include/jemalloc/internal/arena_structs.h
View File

@ -12,6 +12,7 @@
#include "jemalloc/internal/jemalloc_internal_types.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/nstime.h"
#include "jemalloc/internal/pa.h"
#include "jemalloc/internal/ql.h"
#include "jemalloc/internal/sc.h"
#include "jemalloc/internal/smoothstep.h"
@ -150,15 +151,8 @@ struct arena_s {
/* Synchronizes all large allocation/update/deallocation. */
malloc_mutex_t large_mtx;
/*
* Collections of extents that were previously allocated. These are
* used when allocating extents, in an attempt to re-use address space.
*
* Synchronization: internal.
*/
ecache_t ecache_dirty;
ecache_t ecache_muzzy;
ecache_t ecache_retained;
/* The page-level allocator shard this arena uses. */
pa_shard_t pa_shard;
/*
* Decay-based purging state, responsible for scheduling extent state

13
include/jemalloc/internal/pa.h
View File

@ -6,4 +6,17 @@
* allocations.
*/
typedef struct pa_shard_s pa_shard_t;
struct pa_shard_s {
/*
* Collections of extents that were previously allocated. These are
* used when allocating extents, in an attempt to re-use address space.
*
* Synchronization: internal.
*/
ecache_t ecache_dirty;
ecache_t ecache_muzzy;
ecache_t ecache_retained;
};
#endif /* JEMALLOC_INTERNAL_PA_H */

112
src/arena.c
View File

@ -74,8 +74,8 @@ arena_basic_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
*dirty_decay_ms = arena_dirty_decay_ms_get(arena);
*muzzy_decay_ms = arena_muzzy_decay_ms_get(arena);
*nactive += atomic_load_zu(&arena->nactive, ATOMIC_RELAXED);
*ndirty += ecache_npages_get(&arena->ecache_dirty);
*nmuzzy += ecache_npages_get(&arena->ecache_muzzy);
*ndirty += ecache_npages_get(&arena->pa_shard.ecache_dirty);
*nmuzzy += ecache_npages_get(&arena->pa_shard.ecache_muzzy);
}
void
@ -98,7 +98,7 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
arena_stats_accum_zu(&astats->mapped, base_mapped
+ arena_stats_read_zu(tsdn, &arena->stats, &arena->stats.mapped));
arena_stats_accum_zu(&astats->retained,
ecache_npages_get(&arena->ecache_retained) << LG_PAGE);
ecache_npages_get(&arena->pa_shard.ecache_retained) << LG_PAGE);
atomic_store_zu(&astats->edata_avail,
atomic_load_zu(&arena->edata_cache.count, ATOMIC_RELAXED),
@ -129,8 +129,8 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
arena_stats_accum_zu(&astats->metadata_thp, metadata_thp);
arena_stats_accum_zu(&astats->resident, base_resident +
(((atomic_load_zu(&arena->nactive, ATOMIC_RELAXED) +
ecache_npages_get(&arena->ecache_dirty) +
ecache_npages_get(&arena->ecache_muzzy)) << LG_PAGE)));
ecache_npages_get(&arena->pa_shard.ecache_dirty) +
ecache_npages_get(&arena->pa_shard.ecache_muzzy)) << LG_PAGE)));
arena_stats_accum_zu(&astats->abandoned_vm, atomic_load_zu(
&arena->stats.abandoned_vm, ATOMIC_RELAXED));
@ -172,12 +172,16 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
for (pszind_t i = 0; i < SC_NPSIZES; i++) {
size_t dirty, muzzy, retained, dirty_bytes, muzzy_bytes,
retained_bytes;
dirty = ecache_nextents_get(&arena->ecache_dirty, i);
muzzy = ecache_nextents_get(&arena->ecache_muzzy, i);
retained = ecache_nextents_get(&arena->ecache_retained, i);
dirty_bytes = ecache_nbytes_get(&arena->ecache_dirty, i);
muzzy_bytes = ecache_nbytes_get(&arena->ecache_muzzy, i);
retained_bytes = ecache_nbytes_get(&arena->ecache_retained, i);
dirty = ecache_nextents_get(&arena->pa_shard.ecache_dirty, i);
muzzy = ecache_nextents_get(&arena->pa_shard.ecache_muzzy, i);
retained = ecache_nextents_get(&arena->pa_shard.ecache_retained,
i);
dirty_bytes = ecache_nbytes_get(&arena->pa_shard.ecache_dirty,
i);
muzzy_bytes = ecache_nbytes_get(&arena->pa_shard.ecache_muzzy,
i);
retained_bytes = ecache_nbytes_get(
&arena->pa_shard.ecache_retained, i);
atomic_store_zu(&estats[i].ndirty, dirty, ATOMIC_RELAXED);
atomic_store_zu(&estats[i].nmuzzy, muzzy, ATOMIC_RELAXED);
@ -226,11 +230,11 @@ arena_stats_merge(tsdn_t *tsdn, arena_t *arena, unsigned *nthreads,
READ_ARENA_MUTEX_PROF_DATA(large_mtx, arena_prof_mutex_large);
READ_ARENA_MUTEX_PROF_DATA(edata_cache.mtx,
arena_prof_mutex_extent_avail)
READ_ARENA_MUTEX_PROF_DATA(ecache_dirty.mtx,
READ_ARENA_MUTEX_PROF_DATA(pa_shard.ecache_dirty.mtx,
arena_prof_mutex_extents_dirty)
READ_ARENA_MUTEX_PROF_DATA(ecache_muzzy.mtx,
READ_ARENA_MUTEX_PROF_DATA(pa_shard.ecache_muzzy.mtx,
arena_prof_mutex_extents_muzzy)
READ_ARENA_MUTEX_PROF_DATA(ecache_retained.mtx,
READ_ARENA_MUTEX_PROF_DATA(pa_shard.ecache_retained.mtx,
arena_prof_mutex_extents_retained)
READ_ARENA_MUTEX_PROF_DATA(decay_dirty.mtx,
arena_prof_mutex_decay_dirty)
@ -258,7 +262,8 @@ arena_extents_dirty_dalloc(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn),
WITNESS_RANK_CORE, 0);
ecache_dalloc(tsdn, arena, ehooks, &arena->ecache_dirty, edata);
ecache_dalloc(tsdn, arena, ehooks, &arena->pa_shard.ecache_dirty,
edata);
if (arena_dirty_decay_ms_get(arena) == 0) {
arena_decay_dirty(tsdn, arena, false, true);
} else {
@ -434,16 +439,18 @@ arena_extent_alloc_large(tsdn_t *tsdn, arena_t *arena, size_t usize,
szind_t szind = sz_size2index(usize);
size_t mapped_add;
size_t esize = usize + sz_large_pad;
edata_t *edata = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_dirty,
NULL, esize, alignment, false, szind, zero);
edata_t *edata = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_dirty, NULL, esize, alignment, false, szind,
zero);
if (edata == NULL && arena_may_have_muzzy(arena)) {
edata = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_muzzy,
NULL, esize, alignment, false, szind, zero);
edata = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_muzzy, NULL, esize, alignment,
false, szind, zero);
}
if (edata == NULL) {
edata = ecache_alloc_grow(tsdn, arena, ehooks,
&arena->ecache_retained, NULL, esize, alignment, false,
szind, zero);
&arena->pa_shard.ecache_retained, NULL, esize, alignment,
false, szind, zero);
if (config_stats) {
/*
* edata may be NULL on OOM, but in that case mapped_add
@ -808,14 +815,14 @@ bool
arena_dirty_decay_ms_set(tsdn_t *tsdn, arena_t *arena,
ssize_t decay_ms) {
return arena_decay_ms_set(tsdn, arena, &arena->decay_dirty,
&arena->ecache_dirty, decay_ms);
&arena->pa_shard.ecache_dirty, decay_ms);
}
bool
arena_muzzy_decay_ms_set(tsdn_t *tsdn, arena_t *arena,
ssize_t decay_ms) {
return arena_decay_ms_set(tsdn, arena, &arena->decay_muzzy,
&arena->ecache_muzzy, decay_ms);
&arena->pa_shard.ecache_muzzy, decay_ms);
}
static size_t
@ -867,7 +874,7 @@ arena_decay_stashed(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
!extent_purge_lazy_wrapper(tsdn, arena,
ehooks, edata, 0, edata_size_get(edata))) {
ecache_dalloc(tsdn, arena, ehooks,
&arena->ecache_muzzy, edata);
&arena->pa_shard.ecache_muzzy, edata);
arena_background_thread_inactivity_check(tsdn,
arena, is_background_thread);
break;
@ -978,18 +985,18 @@ static bool
arena_decay_dirty(tsdn_t *tsdn, arena_t *arena, bool is_background_thread,
bool all) {
return arena_decay_impl(tsdn, arena, &arena->decay_dirty,
&arena->ecache_dirty, is_background_thread, all);
&arena->pa_shard.ecache_dirty, is_background_thread, all);
}
static bool
arena_decay_muzzy(tsdn_t *tsdn, arena_t *arena, bool is_background_thread,
bool all) {
if (ecache_npages_get(&arena->ecache_muzzy) == 0 &&
if (ecache_npages_get(&arena->pa_shard.ecache_muzzy) == 0 &&
arena_muzzy_decay_ms_get(arena) <= 0) {
return false;
}
return arena_decay_impl(tsdn, arena, &arena->decay_muzzy,
&arena->ecache_muzzy, is_background_thread, all);
&arena->pa_shard.ecache_muzzy, is_background_thread, all);
}
void
@ -1159,7 +1166,7 @@ arena_destroy_retained(tsdn_t *tsdn, arena_t *arena) {
ehooks_t *ehooks = arena_get_ehooks(arena);
edata_t *edata;
while ((edata = ecache_evict(tsdn, arena, ehooks,
&arena->ecache_retained, 0)) != NULL) {
&arena->pa_shard.ecache_retained, 0)) != NULL) {
extent_destroy_wrapper(tsdn, arena, ehooks, edata);
}
}
@ -1175,8 +1182,8 @@ arena_destroy(tsd_t *tsd, arena_t *arena) {
* Furthermore, the caller (arena_i_destroy_ctl()) purged all cached
* extents, so only retained extents may remain.
*/
assert(ecache_npages_get(&arena->ecache_dirty) == 0);
assert(ecache_npages_get(&arena->ecache_muzzy) == 0);
assert(ecache_npages_get(&arena->pa_shard.ecache_dirty) == 0);
assert(ecache_npages_get(&arena->pa_shard.ecache_muzzy) == 0);
/* Deallocate retained memory. */
arena_destroy_retained(tsd_tsdn(tsd), arena);
@ -1210,8 +1217,9 @@ arena_slab_alloc_hard(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
WITNESS_RANK_CORE, 0);
zero = false;
slab = ecache_alloc_grow(tsdn, arena, ehooks, &arena->ecache_retained,
NULL, bin_info->slab_size, PAGE, true, szind, &zero);
slab = ecache_alloc_grow(tsdn, arena, ehooks,
&arena->pa_shard.ecache_retained, NULL, bin_info->slab_size, PAGE,
true, szind, &zero);
if (config_stats && slab != NULL) {
arena_stats_mapped_add(tsdn, &arena->stats,
@ -1230,11 +1238,13 @@ arena_slab_alloc(tsdn_t *tsdn, arena_t *arena, szind_t binind, unsigned binshard
ehooks_t *ehooks = arena_get_ehooks(arena);
szind_t szind = sz_size2index(bin_info->reg_size);
bool zero = false;
edata_t *slab = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_dirty,
NULL, bin_info->slab_size, PAGE, true, binind, &zero);
edata_t *slab = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_dirty, NULL, bin_info->slab_size, PAGE,
true, binind, &zero);
if (slab == NULL && arena_may_have_muzzy(arena)) {
slab = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_muzzy,
NULL, bin_info->slab_size, PAGE, true, binind, &zero);
slab = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_muzzy, NULL, bin_info->slab_size,
PAGE, true, binind, &zero);
}
if (slab == NULL) {
slab = arena_slab_alloc_hard(tsdn, arena, ehooks, bin_info,
@ -2023,16 +2033,16 @@ arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
* are likely to be reused soon after deallocation, and the cost of
* merging/splitting extents is non-trivial.
*/
if (ecache_init(tsdn, &arena->ecache_dirty, extent_state_dirty, ind,
true)) {
if (ecache_init(tsdn, &arena->pa_shard.ecache_dirty, extent_state_dirty,
ind, true)) {
goto label_error;
}
/*
* Coalesce muzzy extents immediately, because operations on them are in
* the critical path much less often than for dirty extents.
*/
if (ecache_init(tsdn, &arena->ecache_muzzy, extent_state_muzzy, ind,
false)) {
if (ecache_init(tsdn, &arena->pa_shard.ecache_muzzy, extent_state_muzzy,
ind, false)) {
goto label_error;
}
/*
@ -2041,8 +2051,8 @@ arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
* coalescing), but also because operations on retained extents are not
* in the critical path.
*/
if (ecache_init(tsdn, &arena->ecache_retained, extent_state_retained,
ind, false)) {
if (ecache_init(tsdn, &arena->pa_shard.ecache_retained,
extent_state_retained, ind, false)) {
goto label_error;
}
@ -2198,9 +2208,9 @@ arena_prefork2(tsdn_t *tsdn, arena_t *arena) {
void
arena_prefork3(tsdn_t *tsdn, arena_t *arena) {
ecache_prefork(tsdn, &arena->ecache_dirty);
ecache_prefork(tsdn, &arena->ecache_muzzy);
ecache_prefork(tsdn, &arena->ecache_retained);
ecache_prefork(tsdn, &arena->pa_shard.ecache_dirty);
ecache_prefork(tsdn, &arena->pa_shard.ecache_muzzy);
ecache_prefork(tsdn, &arena->pa_shard.ecache_retained);
}
void
@ -2240,9 +2250,9 @@ arena_postfork_parent(tsdn_t *tsdn, arena_t *arena) {
malloc_mutex_postfork_parent(tsdn, &arena->large_mtx);
base_postfork_parent(tsdn, arena->base);
edata_cache_postfork_parent(tsdn, &arena->edata_cache);
ecache_postfork_parent(tsdn, &arena->ecache_dirty);
ecache_postfork_parent(tsdn, &arena->ecache_muzzy);
ecache_postfork_parent(tsdn, &arena->ecache_retained);
ecache_postfork_parent(tsdn, &arena->pa_shard.ecache_dirty);
ecache_postfork_parent(tsdn, &arena->pa_shard.ecache_muzzy);
ecache_postfork_parent(tsdn, &arena->pa_shard.ecache_retained);
ecache_grow_postfork_parent(tsdn, &arena->ecache_grow);
malloc_mutex_postfork_parent(tsdn, &arena->decay_dirty.mtx);
malloc_mutex_postfork_parent(tsdn, &arena->decay_muzzy.mtx);
@ -2286,9 +2296,9 @@ arena_postfork_child(tsdn_t *tsdn, arena_t *arena) {
malloc_mutex_postfork_child(tsdn, &arena->large_mtx);
base_postfork_child(tsdn, arena->base);
edata_cache_postfork_child(tsdn, &arena->edata_cache);
ecache_postfork_child(tsdn, &arena->ecache_dirty);
ecache_postfork_child(tsdn, &arena->ecache_muzzy);
ecache_postfork_child(tsdn, &arena->ecache_retained);
ecache_postfork_child(tsdn, &arena->pa_shard.ecache_dirty);
ecache_postfork_child(tsdn, &arena->pa_shard.ecache_muzzy);
ecache_postfork_child(tsdn, &arena->pa_shard.ecache_retained);
ecache_grow_postfork_child(tsdn, &arena->ecache_grow);
malloc_mutex_postfork_child(tsdn, &arena->decay_dirty.mtx);
malloc_mutex_postfork_child(tsdn, &arena->decay_muzzy.mtx);

8
src/background_thread.c
View File

@ -202,12 +202,12 @@ 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->ecache_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->ecache_muzzy);
&arena->pa_shard.ecache_muzzy);
return i1 < i2 ? i1 : i2;
}
@ -717,8 +717,8 @@ background_thread_interval_check(tsdn_t *tsdn, arena_t *arena,
if (info->npages_to_purge_new > BACKGROUND_THREAD_NPAGES_THRESHOLD) {
should_signal = true;
} else if (unlikely(background_thread_indefinite_sleep(info)) &&
(ecache_npages_get(&arena->ecache_dirty) > 0 ||
ecache_npages_get(&arena->ecache_muzzy) > 0 ||
(ecache_npages_get(&arena->pa_shard.ecache_dirty) > 0 ||
ecache_npages_get(&arena->pa_shard.ecache_muzzy) > 0 ||
info->npages_to_purge_new > 0)) {
should_signal = true;
} else {

6
src/ctl.c
View File

@ -3073,9 +3073,9 @@ stats_mutexes_reset_ctl(tsd_t *tsd, const size_t *mib,
}
MUTEX_PROF_RESET(arena->large_mtx);
MUTEX_PROF_RESET(arena->edata_cache.mtx);
MUTEX_PROF_RESET(arena->ecache_dirty.mtx);
MUTEX_PROF_RESET(arena->ecache_muzzy.mtx);
MUTEX_PROF_RESET(arena->ecache_retained.mtx);
MUTEX_PROF_RESET(arena->pa_shard.ecache_dirty.mtx);
MUTEX_PROF_RESET(arena->pa_shard.ecache_muzzy.mtx);
MUTEX_PROF_RESET(arena->pa_shard.ecache_retained.mtx);
MUTEX_PROF_RESET(arena->decay_dirty.mtx);
MUTEX_PROF_RESET(arena->decay_muzzy.mtx);
MUTEX_PROF_RESET(arena->tcache_ql_mtx);

20
src/extent.c
View File

@ -686,11 +686,11 @@ extent_grow_retained(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
if (result == extent_split_interior_ok) {
if (lead != NULL) {
extent_record(tsdn, arena, ehooks,
&arena->ecache_retained, lead, true);
&arena->pa_shard.ecache_retained, lead, true);
}
if (trail != NULL) {
extent_record(tsdn, arena, ehooks,
&arena->ecache_retained, trail, true);
&arena->pa_shard.ecache_retained, trail, true);
}
} else {
/*
@ -703,12 +703,12 @@ extent_grow_retained(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
extent_gdump_add(tsdn, to_salvage);
}
extent_record(tsdn, arena, ehooks,
&arena->ecache_retained, to_salvage, true);
&arena->pa_shard.ecache_retained, to_salvage, true);
}
if (to_leak != NULL) {
extent_deregister_no_gdump_sub(tsdn, to_leak);
extents_abandon_vm(tsdn, arena, ehooks,
&arena->ecache_retained, to_leak, true);
&arena->pa_shard.ecache_retained, to_leak, true);
}
goto label_err;
}
@ -717,7 +717,7 @@ extent_grow_retained(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
if (extent_commit_impl(tsdn, ehooks, edata, 0,
edata_size_get(edata), true)) {
extent_record(tsdn, arena, ehooks,
&arena->ecache_retained, edata, true);
&arena->pa_shard.ecache_retained, edata, true);
goto label_err;
}
/* A successful commit should return zeroed memory. */
@ -774,8 +774,8 @@ extent_alloc_retained(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
malloc_mutex_lock(tsdn, &arena->ecache_grow.mtx);
edata_t *edata = extent_recycle(tsdn, arena, ehooks,
&arena->ecache_retained, new_addr, size, alignment, slab, szind,
zero, commit, true);
&arena->pa_shard.ecache_retained, new_addr, size, alignment, slab,
szind, zero, commit, true);
if (edata != NULL) {
malloc_mutex_unlock(tsdn, &arena->ecache_grow.mtx);
if (config_prof) {
@ -974,7 +974,7 @@ extent_record(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks, ecache_t *ecache,
edata = extent_try_coalesce(tsdn, &arena->edata_cache, ehooks,
ecache, edata, NULL, growing_retained);
} else if (edata_size_get(edata) >= SC_LARGE_MINCLASS) {
assert(ecache == &arena->ecache_dirty);
assert(ecache == &arena->pa_shard.ecache_dirty);
/* Always coalesce large extents eagerly. */
bool coalesced;
do {
@ -1076,8 +1076,8 @@ extent_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
extent_gdump_sub(tsdn, edata);
}
extent_record(tsdn, arena, ehooks, &arena->ecache_retained, edata,
false);
extent_record(tsdn, arena, ehooks, &arena->pa_shard.ecache_retained,
edata, false);
}
void

16
src/large.c
View File

@ -119,19 +119,19 @@ large_ralloc_no_move_expand(tsdn_t *tsdn, edata_t *edata, size_t usize,
bool is_zeroed_trail = zero;
edata_t *trail;
bool new_mapping;
if ((trail = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_dirty,
edata_past_get(edata), trailsize, CACHELINE, false, SC_NSIZES,
&is_zeroed_trail)) != NULL
|| (trail = ecache_alloc(tsdn, arena, ehooks, &arena->ecache_muzzy,
edata_past_get(edata), trailsize, CACHELINE, false, SC_NSIZES,
&is_zeroed_trail)) != NULL) {
if ((trail = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_dirty, edata_past_get(edata), trailsize,
CACHELINE, false, SC_NSIZES, &is_zeroed_trail)) != NULL
|| (trail = ecache_alloc(tsdn, arena, ehooks,
&arena->pa_shard.ecache_muzzy, edata_past_get(edata), trailsize,
CACHELINE, false, SC_NSIZES, &is_zeroed_trail)) != NULL) {
if (config_stats) {
new_mapping = false;
}
} else {
if ((trail = ecache_alloc_grow(tsdn, arena, ehooks,
&arena->ecache_retained, edata_past_get(edata), trailsize,
CACHELINE, false, SC_NSIZES, &is_zeroed_trail))
&arena->pa_shard.ecache_retained, edata_past_get(edata),
trailsize, CACHELINE, false, SC_NSIZES, &is_zeroed_trail))
== NULL) {
return true;
}