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-rw-r--r--memory/jemalloc/src/src/tcache.c555
1 files changed, 0 insertions, 555 deletions
diff --git a/memory/jemalloc/src/src/tcache.c b/memory/jemalloc/src/src/tcache.c
deleted file mode 100644
index f97aa420c..000000000
--- a/memory/jemalloc/src/src/tcache.c
+++ /dev/null
@@ -1,555 +0,0 @@
-#define JEMALLOC_TCACHE_C_
-#include "jemalloc/internal/jemalloc_internal.h"
-
-/******************************************************************************/
-/* Data. */
-
-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. */
-
-unsigned nhbins;
-size_t tcache_maxclass;
-
-tcaches_t *tcaches;
-
-/* Index of first element within tcaches that has never been used. */
-static unsigned tcaches_past;
-
-/* Head of singly linked list tracking available tcaches elements. */
-static tcaches_t *tcaches_avail;
-
-/******************************************************************************/
-
-size_t
-tcache_salloc(tsdn_t *tsdn, const void *ptr)
-{
-
- return (arena_salloc(tsdn, ptr, false));
-}
-
-void
-tcache_event_hard(tsd_t *tsd, tcache_t *tcache)
-{
- szind_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(tsd, tcache, tbin, binind,
- tbin->ncached - tbin->low_water + (tbin->low_water
- >> 2));
- } else {
- tcache_bin_flush_large(tsd, 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;
-}
-
-void *
-tcache_alloc_small_hard(tsdn_t *tsdn, arena_t *arena, tcache_t *tcache,
- tcache_bin_t *tbin, szind_t binind, bool *tcache_success)
-{
- void *ret;
-
- arena_tcache_fill_small(tsdn, arena, tbin, binind, config_prof ?
- tcache->prof_accumbytes : 0);
- if (config_prof)
- tcache->prof_accumbytes = 0;
- ret = tcache_alloc_easy(tbin, tcache_success);
-
- return (ret);
-}
-
-void
-tcache_bin_flush_small(tsd_t *tsd, tcache_t *tcache, tcache_bin_t *tbin,
- szind_t binind, unsigned rem)
-{
- arena_t *arena;
- void *ptr;
- unsigned i, nflush, ndeferred;
- bool merged_stats = false;
-
- assert(binind < NBINS);
- assert(rem <= tbin->ncached);
-
- arena = arena_choose(tsd, NULL);
- assert(arena != NULL);
- 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 - 1));
- arena_t *bin_arena = extent_node_arena_get(&chunk->node);
- arena_bin_t *bin = &bin_arena->bins[binind];
-
- if (config_prof && bin_arena == arena) {
- if (arena_prof_accum(tsd_tsdn(tsd), arena,
- tcache->prof_accumbytes))
- prof_idump(tsd_tsdn(tsd));
- tcache->prof_accumbytes = 0;
- }
-
- malloc_mutex_lock(tsd_tsdn(tsd), &bin->lock);
- if (config_stats && bin_arena == arena) {
- assert(!merged_stats);
- 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 - 1 - i);
- assert(ptr != NULL);
- chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
- if (extent_node_arena_get(&chunk->node) == bin_arena) {
- size_t pageind = ((uintptr_t)ptr -
- (uintptr_t)chunk) >> LG_PAGE;
- arena_chunk_map_bits_t *bitselm =
- arena_bitselm_get_mutable(chunk, pageind);
- arena_dalloc_bin_junked_locked(tsd_tsdn(tsd),
- bin_arena, chunk, ptr, bitselm);
- } 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 - 1 - ndeferred) = ptr;
- ndeferred++;
- }
- }
- malloc_mutex_unlock(tsd_tsdn(tsd), &bin->lock);
- arena_decay_ticks(tsd_tsdn(tsd), bin_arena, nflush - ndeferred);
- }
- if (config_stats && !merged_stats) {
- /*
- * 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 = &arena->bins[binind];
- malloc_mutex_lock(tsd_tsdn(tsd), &bin->lock);
- bin->stats.nflushes++;
- bin->stats.nrequests += tbin->tstats.nrequests;
- tbin->tstats.nrequests = 0;
- malloc_mutex_unlock(tsd_tsdn(tsd), &bin->lock);
- }
-
- memmove(tbin->avail - rem, tbin->avail - tbin->ncached, rem *
- sizeof(void *));
- tbin->ncached = rem;
- if ((int)tbin->ncached < tbin->low_water)
- tbin->low_water = tbin->ncached;
-}
-
-void
-tcache_bin_flush_large(tsd_t *tsd, tcache_bin_t *tbin, szind_t binind,
- unsigned rem, tcache_t *tcache)
-{
- arena_t *arena;
- void *ptr;
- unsigned i, nflush, ndeferred;
- bool merged_stats = false;
-
- assert(binind < nhbins);
- assert(rem <= tbin->ncached);
-
- arena = arena_choose(tsd, NULL);
- assert(arena != NULL);
- 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 - 1));
- arena_t *locked_arena = extent_node_arena_get(&chunk->node);
- UNUSED bool idump;
-
- if (config_prof)
- idump = false;
- malloc_mutex_lock(tsd_tsdn(tsd), &locked_arena->lock);
- if ((config_prof || config_stats) && locked_arena == 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 - 1 - i);
- assert(ptr != NULL);
- chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
- if (extent_node_arena_get(&chunk->node) ==
- locked_arena) {
- arena_dalloc_large_junked_locked(tsd_tsdn(tsd),
- 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 - 1 - ndeferred) = ptr;
- ndeferred++;
- }
- }
- malloc_mutex_unlock(tsd_tsdn(tsd), &locked_arena->lock);
- if (config_prof && idump)
- prof_idump(tsd_tsdn(tsd));
- arena_decay_ticks(tsd_tsdn(tsd), locked_arena, nflush -
- ndeferred);
- }
- if (config_stats && !merged_stats) {
- /*
- * The flush loop didn't happen to flush to this thread's
- * arena, so the stats didn't get merged. Manually do so now.
- */
- malloc_mutex_lock(tsd_tsdn(tsd), &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(tsd_tsdn(tsd), &arena->lock);
- }
-
- memmove(tbin->avail - rem, tbin->avail - tbin->ncached, rem *
- sizeof(void *));
- tbin->ncached = rem;
- if ((int)tbin->ncached < tbin->low_water)
- tbin->low_water = tbin->ncached;
-}
-
-static void
-tcache_arena_associate(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena)
-{
-
- if (config_stats) {
- /* Link into list of extant tcaches. */
- malloc_mutex_lock(tsdn, &arena->lock);
- ql_elm_new(tcache, link);
- ql_tail_insert(&arena->tcache_ql, tcache, link);
- malloc_mutex_unlock(tsdn, &arena->lock);
- }
-}
-
-static void
-tcache_arena_dissociate(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena)
-{
-
- if (config_stats) {
- /* Unlink from list of extant tcaches. */
- malloc_mutex_lock(tsdn, &arena->lock);
- if (config_debug) {
- bool in_ql = false;
- tcache_t *iter;
- ql_foreach(iter, &arena->tcache_ql, link) {
- if (iter == tcache) {
- in_ql = true;
- break;
- }
- }
- assert(in_ql);
- }
- ql_remove(&arena->tcache_ql, tcache, link);
- tcache_stats_merge(tsdn, tcache, arena);
- malloc_mutex_unlock(tsdn, &arena->lock);
- }
-}
-
-void
-tcache_arena_reassociate(tsdn_t *tsdn, tcache_t *tcache, arena_t *oldarena,
- arena_t *newarena)
-{
-
- tcache_arena_dissociate(tsdn, tcache, oldarena);
- tcache_arena_associate(tsdn, tcache, newarena);
-}
-
-tcache_t *
-tcache_get_hard(tsd_t *tsd)
-{
- arena_t *arena;
-
- if (!tcache_enabled_get()) {
- if (tsd_nominal(tsd))
- tcache_enabled_set(false); /* Memoize. */
- return (NULL);
- }
- arena = arena_choose(tsd, NULL);
- if (unlikely(arena == NULL))
- return (NULL);
- return (tcache_create(tsd_tsdn(tsd), arena));
-}
-
-tcache_t *
-tcache_create(tsdn_t *tsdn, 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 *);
- /* Avoid false cacheline sharing. */
- size = sa2u(size, CACHELINE);
-
- tcache = ipallocztm(tsdn, size, CACHELINE, true, NULL, true,
- arena_get(TSDN_NULL, 0, true));
- if (tcache == NULL)
- return (NULL);
-
- tcache_arena_associate(tsdn, tcache, arena);
-
- ticker_init(&tcache->gc_ticker, TCACHE_GC_INCR);
-
- assert((TCACHE_NSLOTS_SMALL_MAX & 1U) == 0);
- for (i = 0; i < nhbins; i++) {
- tcache->tbins[i].lg_fill_div = 1;
- stack_offset += tcache_bin_info[i].ncached_max * sizeof(void *);
- /*
- * avail points past the available space. Allocations will
- * access the slots toward higher addresses (for the benefit of
- * prefetch).
- */
- tcache->tbins[i].avail = (void **)((uintptr_t)tcache +
- (uintptr_t)stack_offset);
- }
-
- return (tcache);
-}
-
-static void
-tcache_destroy(tsd_t *tsd, tcache_t *tcache)
-{
- arena_t *arena;
- unsigned i;
-
- arena = arena_choose(tsd, NULL);
- tcache_arena_dissociate(tsd_tsdn(tsd), tcache, arena);
-
- for (i = 0; i < NBINS; i++) {
- tcache_bin_t *tbin = &tcache->tbins[i];
- tcache_bin_flush_small(tsd, tcache, tbin, i, 0);
-
- if (config_stats && tbin->tstats.nrequests != 0) {
- arena_bin_t *bin = &arena->bins[i];
- malloc_mutex_lock(tsd_tsdn(tsd), &bin->lock);
- bin->stats.nrequests += tbin->tstats.nrequests;
- malloc_mutex_unlock(tsd_tsdn(tsd), &bin->lock);
- }
- }
-
- for (; i < nhbins; i++) {
- tcache_bin_t *tbin = &tcache->tbins[i];
- tcache_bin_flush_large(tsd, tbin, i, 0, tcache);
-
- if (config_stats && tbin->tstats.nrequests != 0) {
- malloc_mutex_lock(tsd_tsdn(tsd), &arena->lock);
- arena->stats.nrequests_large += tbin->tstats.nrequests;
- arena->stats.lstats[i - NBINS].nrequests +=
- tbin->tstats.nrequests;
- malloc_mutex_unlock(tsd_tsdn(tsd), &arena->lock);
- }
- }
-
- if (config_prof && tcache->prof_accumbytes > 0 &&
- arena_prof_accum(tsd_tsdn(tsd), arena, tcache->prof_accumbytes))
- prof_idump(tsd_tsdn(tsd));
-
- idalloctm(tsd_tsdn(tsd), tcache, NULL, true, true);
-}
-
-void
-tcache_cleanup(tsd_t *tsd)
-{
- tcache_t *tcache;
-
- if (!config_tcache)
- return;
-
- if ((tcache = tsd_tcache_get(tsd)) != NULL) {
- tcache_destroy(tsd, tcache);
- tsd_tcache_set(tsd, NULL);
- }
-}
-
-void
-tcache_enabled_cleanup(tsd_t *tsd)
-{
-
- /* Do nothing. */
-}
-
-void
-tcache_stats_merge(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena)
-{
- unsigned i;
-
- cassert(config_stats);
-
- malloc_mutex_assert_owner(tsdn, &arena->lock);
-
- /* 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(tsdn, &bin->lock);
- bin->stats.nrequests += tbin->tstats.nrequests;
- malloc_mutex_unlock(tsdn, &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
-tcaches_create(tsd_t *tsd, unsigned *r_ind)
-{
- arena_t *arena;
- tcache_t *tcache;
- tcaches_t *elm;
-
- if (tcaches == NULL) {
- tcaches = base_alloc(tsd_tsdn(tsd), sizeof(tcache_t *) *
- (MALLOCX_TCACHE_MAX+1));
- if (tcaches == NULL)
- return (true);
- }
-
- if (tcaches_avail == NULL && tcaches_past > MALLOCX_TCACHE_MAX)
- return (true);
- arena = arena_ichoose(tsd, NULL);
- if (unlikely(arena == NULL))
- return (true);
- tcache = tcache_create(tsd_tsdn(tsd), arena);
- if (tcache == NULL)
- return (true);
-
- if (tcaches_avail != NULL) {
- elm = tcaches_avail;
- tcaches_avail = tcaches_avail->next;
- elm->tcache = tcache;
- *r_ind = (unsigned)(elm - tcaches);
- } else {
- elm = &tcaches[tcaches_past];
- elm->tcache = tcache;
- *r_ind = tcaches_past;
- tcaches_past++;
- }
-
- return (false);
-}
-
-static void
-tcaches_elm_flush(tsd_t *tsd, tcaches_t *elm)
-{
-
- if (elm->tcache == NULL)
- return;
- tcache_destroy(tsd, elm->tcache);
- elm->tcache = NULL;
-}
-
-void
-tcaches_flush(tsd_t *tsd, unsigned ind)
-{
-
- tcaches_elm_flush(tsd, &tcaches[ind]);
-}
-
-void
-tcaches_destroy(tsd_t *tsd, unsigned ind)
-{
- tcaches_t *elm = &tcaches[ind];
- tcaches_elm_flush(tsd, elm);
- elm->next = tcaches_avail;
- tcaches_avail = elm;
-}
-
-bool
-tcache_boot(tsdn_t *tsdn)
-{
- unsigned i;
-
- /*
- * If necessary, clamp opt_lg_tcache_max, now that large_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) > large_maxclass)
- tcache_maxclass = large_maxclass;
- else
- tcache_maxclass = (1U << opt_lg_tcache_max);
-
- nhbins = size2index(tcache_maxclass) + 1;
-
- /* Initialize tcache_bin_info. */
- tcache_bin_info = (tcache_bin_info_t *)base_alloc(tsdn, 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_MIN) {
- tcache_bin_info[i].ncached_max =
- TCACHE_NSLOTS_SMALL_MIN;
- } else 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);
-}