mirror of
https://github.com/mod-playerbots/azerothcore-wotlk.git
synced 2026-01-29 08:33:47 +00:00
Directory Structure [step 1]: moving files
working on #672 NOTE: This commit can't be compiled!!
This commit is contained in:
Yehonal
479
deps/jemalloc/src/tcache.c
vendored
Normal file
479
deps/jemalloc/src/tcache.c
vendored
Normal file
@@ -0,0 +1,479 @@
|
||||
#define JEMALLOC_TCACHE_C_
|
||||
#include "jemalloc/internal/jemalloc_internal.h"
|
||||
|
||||
/******************************************************************************/
|
||||
/* Data. */
|
||||
|
||||
malloc_tsd_data(, tcache, tcache_t *, NULL)
|
||||
malloc_tsd_data(, tcache_enabled, tcache_enabled_t, tcache_enabled_default)
|
||||
|
||||
bool opt_tcache = true;
|
||||
ssize_t opt_lg_tcache_max = LG_TCACHE_MAXCLASS_DEFAULT;
|
||||
|
||||
tcache_bin_info_t *tcache_bin_info;
|
||||
static unsigned stack_nelms; /* Total stack elms per tcache. */
|
||||
|
||||
size_t nhbins;
|
||||
size_t tcache_maxclass;
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
size_t tcache_salloc(const void *ptr)
|
||||
{
|
||||
|
||||
return (arena_salloc(ptr, false));
|
||||
}
|
||||
|
||||
void
|
||||
tcache_event_hard(tcache_t *tcache)
|
||||
{
|
||||
size_t binind = tcache->next_gc_bin;
|
||||
tcache_bin_t *tbin = &tcache->tbins[binind];
|
||||
tcache_bin_info_t *tbin_info = &tcache_bin_info[binind];
|
||||
|
||||
if (tbin->low_water > 0) {
|
||||
/*
|
||||
* Flush (ceiling) 3/4 of the objects below the low water mark.
|
||||
*/
|
||||
if (binind < NBINS) {
|
||||
tcache_bin_flush_small(tbin, binind, tbin->ncached -
|
||||
tbin->low_water + (tbin->low_water >> 2), tcache);
|
||||
} else {
|
||||
tcache_bin_flush_large(tbin, binind, tbin->ncached -
|
||||
tbin->low_water + (tbin->low_water >> 2), tcache);
|
||||
}
|
||||
/*
|
||||
* Reduce fill count by 2X. Limit lg_fill_div such that the
|
||||
* fill count is always at least 1.
|
||||
*/
|
||||
if ((tbin_info->ncached_max >> (tbin->lg_fill_div+1)) >= 1)
|
||||
tbin->lg_fill_div++;
|
||||
} else if (tbin->low_water < 0) {
|
||||
/*
|
||||
* Increase fill count by 2X. Make sure lg_fill_div stays
|
||||
* greater than 0.
|
||||
*/
|
||||
if (tbin->lg_fill_div > 1)
|
||||
tbin->lg_fill_div--;
|
||||
}
|
||||
tbin->low_water = tbin->ncached;
|
||||
|
||||
tcache->next_gc_bin++;
|
||||
if (tcache->next_gc_bin == nhbins)
|
||||
tcache->next_gc_bin = 0;
|
||||
tcache->ev_cnt = 0;
|
||||
}
|
||||
|
||||
void *
|
||||
tcache_alloc_small_hard(tcache_t *tcache, tcache_bin_t *tbin, size_t binind)
|
||||
{
|
||||
void *ret;
|
||||
|
||||
arena_tcache_fill_small(tcache->arena, tbin, binind,
|
||||
config_prof ? tcache->prof_accumbytes : 0);
|
||||
if (config_prof)
|
||||
tcache->prof_accumbytes = 0;
|
||||
ret = tcache_alloc_easy(tbin);
|
||||
|
||||
return (ret);
|
||||
}
|
||||
|
||||
void
|
||||
tcache_bin_flush_small(tcache_bin_t *tbin, size_t binind, unsigned rem,
|
||||
tcache_t *tcache)
|
||||
{
|
||||
void *ptr;
|
||||
unsigned i, nflush, ndeferred;
|
||||
bool merged_stats = false;
|
||||
|
||||
assert(binind < NBINS);
|
||||
assert(rem <= tbin->ncached);
|
||||
|
||||
for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) {
|
||||
/* Lock the arena bin associated with the first object. */
|
||||
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(
|
||||
tbin->avail[0]);
|
||||
arena_t *arena = chunk->arena;
|
||||
arena_bin_t *bin = &arena->bins[binind];
|
||||
|
||||
if (config_prof && arena == tcache->arena) {
|
||||
if (arena_prof_accum(arena, tcache->prof_accumbytes))
|
||||
prof_idump();
|
||||
tcache->prof_accumbytes = 0;
|
||||
}
|
||||
|
||||
malloc_mutex_lock(&bin->lock);
|
||||
if (config_stats && arena == tcache->arena) {
|
||||
assert(merged_stats == false);
|
||||
merged_stats = true;
|
||||
bin->stats.nflushes++;
|
||||
bin->stats.nrequests += tbin->tstats.nrequests;
|
||||
tbin->tstats.nrequests = 0;
|
||||
}
|
||||
ndeferred = 0;
|
||||
for (i = 0; i < nflush; i++) {
|
||||
ptr = tbin->avail[i];
|
||||
assert(ptr != NULL);
|
||||
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
|
||||
if (chunk->arena == arena) {
|
||||
size_t pageind = ((uintptr_t)ptr -
|
||||
(uintptr_t)chunk) >> LG_PAGE;
|
||||
arena_chunk_map_t *mapelm =
|
||||
arena_mapp_get(chunk, pageind);
|
||||
if (config_fill && opt_junk) {
|
||||
arena_alloc_junk_small(ptr,
|
||||
&arena_bin_info[binind], true);
|
||||
}
|
||||
arena_dalloc_bin_locked(arena, chunk, ptr,
|
||||
mapelm);
|
||||
} else {
|
||||
/*
|
||||
* This object was allocated via a different
|
||||
* arena bin than the one that is currently
|
||||
* locked. Stash the object, so that it can be
|
||||
* handled in a future pass.
|
||||
*/
|
||||
tbin->avail[ndeferred] = ptr;
|
||||
ndeferred++;
|
||||
}
|
||||
}
|
||||
malloc_mutex_unlock(&bin->lock);
|
||||
}
|
||||
if (config_stats && merged_stats == false) {
|
||||
/*
|
||||
* The flush loop didn't happen to flush to this thread's
|
||||
* arena, so the stats didn't get merged. Manually do so now.
|
||||
*/
|
||||
arena_bin_t *bin = &tcache->arena->bins[binind];
|
||||
malloc_mutex_lock(&bin->lock);
|
||||
bin->stats.nflushes++;
|
||||
bin->stats.nrequests += tbin->tstats.nrequests;
|
||||
tbin->tstats.nrequests = 0;
|
||||
malloc_mutex_unlock(&bin->lock);
|
||||
}
|
||||
|
||||
memmove(tbin->avail, &tbin->avail[tbin->ncached - rem],
|
||||
rem * sizeof(void *));
|
||||
tbin->ncached = rem;
|
||||
if ((int)tbin->ncached < tbin->low_water)
|
||||
tbin->low_water = tbin->ncached;
|
||||
}
|
||||
|
||||
void
|
||||
tcache_bin_flush_large(tcache_bin_t *tbin, size_t binind, unsigned rem,
|
||||
tcache_t *tcache)
|
||||
{
|
||||
void *ptr;
|
||||
unsigned i, nflush, ndeferred;
|
||||
bool merged_stats = false;
|
||||
|
||||
assert(binind < nhbins);
|
||||
assert(rem <= tbin->ncached);
|
||||
|
||||
for (nflush = tbin->ncached - rem; nflush > 0; nflush = ndeferred) {
|
||||
/* Lock the arena associated with the first object. */
|
||||
arena_chunk_t *chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(
|
||||
tbin->avail[0]);
|
||||
arena_t *arena = chunk->arena;
|
||||
UNUSED bool idump;
|
||||
|
||||
if (config_prof)
|
||||
idump = false;
|
||||
malloc_mutex_lock(&arena->lock);
|
||||
if ((config_prof || config_stats) && arena == tcache->arena) {
|
||||
if (config_prof) {
|
||||
idump = arena_prof_accum_locked(arena,
|
||||
tcache->prof_accumbytes);
|
||||
tcache->prof_accumbytes = 0;
|
||||
}
|
||||
if (config_stats) {
|
||||
merged_stats = true;
|
||||
arena->stats.nrequests_large +=
|
||||
tbin->tstats.nrequests;
|
||||
arena->stats.lstats[binind - NBINS].nrequests +=
|
||||
tbin->tstats.nrequests;
|
||||
tbin->tstats.nrequests = 0;
|
||||
}
|
||||
}
|
||||
ndeferred = 0;
|
||||
for (i = 0; i < nflush; i++) {
|
||||
ptr = tbin->avail[i];
|
||||
assert(ptr != NULL);
|
||||
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
|
||||
if (chunk->arena == arena)
|
||||
arena_dalloc_large_locked(arena, chunk, ptr);
|
||||
else {
|
||||
/*
|
||||
* This object was allocated via a different
|
||||
* arena than the one that is currently locked.
|
||||
* Stash the object, so that it can be handled
|
||||
* in a future pass.
|
||||
*/
|
||||
tbin->avail[ndeferred] = ptr;
|
||||
ndeferred++;
|
||||
}
|
||||
}
|
||||
malloc_mutex_unlock(&arena->lock);
|
||||
if (config_prof && idump)
|
||||
prof_idump();
|
||||
}
|
||||
if (config_stats && merged_stats == false) {
|
||||
/*
|
||||
* The flush loop didn't happen to flush to this thread's
|
||||
* arena, so the stats didn't get merged. Manually do so now.
|
||||
*/
|
||||
arena_t *arena = tcache->arena;
|
||||
malloc_mutex_lock(&arena->lock);
|
||||
arena->stats.nrequests_large += tbin->tstats.nrequests;
|
||||
arena->stats.lstats[binind - NBINS].nrequests +=
|
||||
tbin->tstats.nrequests;
|
||||
tbin->tstats.nrequests = 0;
|
||||
malloc_mutex_unlock(&arena->lock);
|
||||
}
|
||||
|
||||
memmove(tbin->avail, &tbin->avail[tbin->ncached - rem],
|
||||
rem * sizeof(void *));
|
||||
tbin->ncached = rem;
|
||||
if ((int)tbin->ncached < tbin->low_water)
|
||||
tbin->low_water = tbin->ncached;
|
||||
}
|
||||
|
||||
void
|
||||
tcache_arena_associate(tcache_t *tcache, arena_t *arena)
|
||||
{
|
||||
|
||||
if (config_stats) {
|
||||
/* Link into list of extant tcaches. */
|
||||
malloc_mutex_lock(&arena->lock);
|
||||
ql_elm_new(tcache, link);
|
||||
ql_tail_insert(&arena->tcache_ql, tcache, link);
|
||||
malloc_mutex_unlock(&arena->lock);
|
||||
}
|
||||
tcache->arena = arena;
|
||||
}
|
||||
|
||||
void
|
||||
tcache_arena_dissociate(tcache_t *tcache)
|
||||
{
|
||||
|
||||
if (config_stats) {
|
||||
/* Unlink from list of extant tcaches. */
|
||||
malloc_mutex_lock(&tcache->arena->lock);
|
||||
ql_remove(&tcache->arena->tcache_ql, tcache, link);
|
||||
tcache_stats_merge(tcache, tcache->arena);
|
||||
malloc_mutex_unlock(&tcache->arena->lock);
|
||||
}
|
||||
}
|
||||
|
||||
tcache_t *
|
||||
tcache_create(arena_t *arena)
|
||||
{
|
||||
tcache_t *tcache;
|
||||
size_t size, stack_offset;
|
||||
unsigned i;
|
||||
|
||||
size = offsetof(tcache_t, tbins) + (sizeof(tcache_bin_t) * nhbins);
|
||||
/* Naturally align the pointer stacks. */
|
||||
size = PTR_CEILING(size);
|
||||
stack_offset = size;
|
||||
size += stack_nelms * sizeof(void *);
|
||||
/*
|
||||
* Round up to the nearest multiple of the cacheline size, in order to
|
||||
* avoid the possibility of false cacheline sharing.
|
||||
*
|
||||
* That this works relies on the same logic as in ipalloc(), but we
|
||||
* cannot directly call ipalloc() here due to tcache bootstrapping
|
||||
* issues.
|
||||
*/
|
||||
size = (size + CACHELINE_MASK) & (-CACHELINE);
|
||||
|
||||
if (size <= SMALL_MAXCLASS)
|
||||
tcache = (tcache_t *)arena_malloc_small(arena, size, true);
|
||||
else if (size <= tcache_maxclass)
|
||||
tcache = (tcache_t *)arena_malloc_large(arena, size, true);
|
||||
else
|
||||
tcache = (tcache_t *)icalloct(size, false, arena);
|
||||
|
||||
if (tcache == NULL)
|
||||
return (NULL);
|
||||
|
||||
tcache_arena_associate(tcache, arena);
|
||||
|
||||
assert((TCACHE_NSLOTS_SMALL_MAX & 1U) == 0);
|
||||
for (i = 0; i < nhbins; i++) {
|
||||
tcache->tbins[i].lg_fill_div = 1;
|
||||
tcache->tbins[i].avail = (void **)((uintptr_t)tcache +
|
||||
(uintptr_t)stack_offset);
|
||||
stack_offset += tcache_bin_info[i].ncached_max * sizeof(void *);
|
||||
}
|
||||
|
||||
tcache_tsd_set(&tcache);
|
||||
|
||||
return (tcache);
|
||||
}
|
||||
|
||||
void
|
||||
tcache_destroy(tcache_t *tcache)
|
||||
{
|
||||
unsigned i;
|
||||
size_t tcache_size;
|
||||
|
||||
tcache_arena_dissociate(tcache);
|
||||
|
||||
for (i = 0; i < NBINS; i++) {
|
||||
tcache_bin_t *tbin = &tcache->tbins[i];
|
||||
tcache_bin_flush_small(tbin, i, 0, tcache);
|
||||
|
||||
if (config_stats && tbin->tstats.nrequests != 0) {
|
||||
arena_t *arena = tcache->arena;
|
||||
arena_bin_t *bin = &arena->bins[i];
|
||||
malloc_mutex_lock(&bin->lock);
|
||||
bin->stats.nrequests += tbin->tstats.nrequests;
|
||||
malloc_mutex_unlock(&bin->lock);
|
||||
}
|
||||
}
|
||||
|
||||
for (; i < nhbins; i++) {
|
||||
tcache_bin_t *tbin = &tcache->tbins[i];
|
||||
tcache_bin_flush_large(tbin, i, 0, tcache);
|
||||
|
||||
if (config_stats && tbin->tstats.nrequests != 0) {
|
||||
arena_t *arena = tcache->arena;
|
||||
malloc_mutex_lock(&arena->lock);
|
||||
arena->stats.nrequests_large += tbin->tstats.nrequests;
|
||||
arena->stats.lstats[i - NBINS].nrequests +=
|
||||
tbin->tstats.nrequests;
|
||||
malloc_mutex_unlock(&arena->lock);
|
||||
}
|
||||
}
|
||||
|
||||
if (config_prof && tcache->prof_accumbytes > 0 &&
|
||||
arena_prof_accum(tcache->arena, tcache->prof_accumbytes))
|
||||
prof_idump();
|
||||
|
||||
tcache_size = arena_salloc(tcache, false);
|
||||
if (tcache_size <= SMALL_MAXCLASS) {
|
||||
arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache);
|
||||
arena_t *arena = chunk->arena;
|
||||
size_t pageind = ((uintptr_t)tcache - (uintptr_t)chunk) >>
|
||||
LG_PAGE;
|
||||
arena_chunk_map_t *mapelm = arena_mapp_get(chunk, pageind);
|
||||
|
||||
arena_dalloc_bin(arena, chunk, tcache, pageind, mapelm);
|
||||
} else if (tcache_size <= tcache_maxclass) {
|
||||
arena_chunk_t *chunk = CHUNK_ADDR2BASE(tcache);
|
||||
arena_t *arena = chunk->arena;
|
||||
|
||||
arena_dalloc_large(arena, chunk, tcache);
|
||||
} else
|
||||
idalloct(tcache, false);
|
||||
}
|
||||
|
||||
void
|
||||
tcache_thread_cleanup(void *arg)
|
||||
{
|
||||
tcache_t *tcache = *(tcache_t **)arg;
|
||||
|
||||
if (tcache == TCACHE_STATE_DISABLED) {
|
||||
/* Do nothing. */
|
||||
} else if (tcache == TCACHE_STATE_REINCARNATED) {
|
||||
/*
|
||||
* Another destructor called an allocator function after this
|
||||
* destructor was called. Reset tcache to
|
||||
* TCACHE_STATE_PURGATORY in order to receive another callback.
|
||||
*/
|
||||
tcache = TCACHE_STATE_PURGATORY;
|
||||
tcache_tsd_set(&tcache);
|
||||
} else if (tcache == TCACHE_STATE_PURGATORY) {
|
||||
/*
|
||||
* The previous time this destructor was called, we set the key
|
||||
* to TCACHE_STATE_PURGATORY so that other destructors wouldn't
|
||||
* cause re-creation of the tcache. This time, do nothing, so
|
||||
* that the destructor will not be called again.
|
||||
*/
|
||||
} else if (tcache != NULL) {
|
||||
assert(tcache != TCACHE_STATE_PURGATORY);
|
||||
tcache_destroy(tcache);
|
||||
tcache = TCACHE_STATE_PURGATORY;
|
||||
tcache_tsd_set(&tcache);
|
||||
}
|
||||
}
|
||||
|
||||
/* Caller must own arena->lock. */
|
||||
void
|
||||
tcache_stats_merge(tcache_t *tcache, arena_t *arena)
|
||||
{
|
||||
unsigned i;
|
||||
|
||||
cassert(config_stats);
|
||||
|
||||
/* Merge and reset tcache stats. */
|
||||
for (i = 0; i < NBINS; i++) {
|
||||
arena_bin_t *bin = &arena->bins[i];
|
||||
tcache_bin_t *tbin = &tcache->tbins[i];
|
||||
malloc_mutex_lock(&bin->lock);
|
||||
bin->stats.nrequests += tbin->tstats.nrequests;
|
||||
malloc_mutex_unlock(&bin->lock);
|
||||
tbin->tstats.nrequests = 0;
|
||||
}
|
||||
|
||||
for (; i < nhbins; i++) {
|
||||
malloc_large_stats_t *lstats = &arena->stats.lstats[i - NBINS];
|
||||
tcache_bin_t *tbin = &tcache->tbins[i];
|
||||
arena->stats.nrequests_large += tbin->tstats.nrequests;
|
||||
lstats->nrequests += tbin->tstats.nrequests;
|
||||
tbin->tstats.nrequests = 0;
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
tcache_boot0(void)
|
||||
{
|
||||
unsigned i;
|
||||
|
||||
/*
|
||||
* If necessary, clamp opt_lg_tcache_max, now that arena_maxclass is
|
||||
* known.
|
||||
*/
|
||||
if (opt_lg_tcache_max < 0 || (1U << opt_lg_tcache_max) < SMALL_MAXCLASS)
|
||||
tcache_maxclass = SMALL_MAXCLASS;
|
||||
else if ((1U << opt_lg_tcache_max) > arena_maxclass)
|
||||
tcache_maxclass = arena_maxclass;
|
||||
else
|
||||
tcache_maxclass = (1U << opt_lg_tcache_max);
|
||||
|
||||
nhbins = NBINS + (tcache_maxclass >> LG_PAGE);
|
||||
|
||||
/* Initialize tcache_bin_info. */
|
||||
tcache_bin_info = (tcache_bin_info_t *)base_alloc(nhbins *
|
||||
sizeof(tcache_bin_info_t));
|
||||
if (tcache_bin_info == NULL)
|
||||
return (true);
|
||||
stack_nelms = 0;
|
||||
for (i = 0; i < NBINS; i++) {
|
||||
if ((arena_bin_info[i].nregs << 1) <= TCACHE_NSLOTS_SMALL_MAX) {
|
||||
tcache_bin_info[i].ncached_max =
|
||||
(arena_bin_info[i].nregs << 1);
|
||||
} else {
|
||||
tcache_bin_info[i].ncached_max =
|
||||
TCACHE_NSLOTS_SMALL_MAX;
|
||||
}
|
||||
stack_nelms += tcache_bin_info[i].ncached_max;
|
||||
}
|
||||
for (; i < nhbins; i++) {
|
||||
tcache_bin_info[i].ncached_max = TCACHE_NSLOTS_LARGE;
|
||||
stack_nelms += tcache_bin_info[i].ncached_max;
|
||||
}
|
||||
|
||||
return (false);
|
||||
}
|
||||
|
||||
bool
|
||||
tcache_boot1(void)
|
||||
{
|
||||
|
||||
if (tcache_tsd_boot() || tcache_enabled_tsd_boot())
|
||||
return (true);
|
||||
|
||||
return (false);
|
||||
}
|
||||
Reference in New Issue
Block a user