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HPA: Allow frequent reused alloc to bypass the slab_max_alloc limit, as long as

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it's within the huge page size.  These requests do not concern internal
fragmentation with huge pages, since the entire range is expected to be
accessed.
This commit is contained in:
Qi Wang 2024-01-16 13:07:58 -08:00 • committed by Qi Wang
parent b1792c80d2
commit a2c5267409
6 changed files with 51 additions and 19 deletions
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7
src/sec.c
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@ -174,14 +174,15 @@ sec_shard_alloc_locked(tsdn_t *tsdn, sec_t *sec, sec_shard_t *shard,
static edata_t *
sec_batch_fill_and_alloc(tsdn_t *tsdn, sec_t *sec, sec_shard_t *shard,
sec_bin_t *bin, size_t size) {
sec_bin_t *bin, size_t size, bool frequent_reuse) {
malloc_mutex_assert_not_owner(tsdn, &shard->mtx);
edata_list_active_t result;
edata_list_active_init(&result);
bool deferred_work_generated = false;
size_t nalloc = pai_alloc_batch(tsdn, sec->fallback, size,
1 + sec->opts.batch_fill_extra, &result, &deferred_work_generated);
1 + sec->opts.batch_fill_extra, &result, frequent_reuse,
&deferred_work_generated);
edata_t *ret = edata_list_active_first(&result);
if (ret != NULL) {
@ -251,7 +252,7 @@ sec_alloc(tsdn_t *tsdn, pai_t *self, size_t size, size_t alignment, bool zero,
if (edata == NULL) {
if (do_batch_fill) {
edata = sec_batch_fill_and_alloc(tsdn, sec, shard, bin,
size);
size, frequent_reuse);
} else {
edata = pai_alloc(tsdn, sec->fallback, size, alignment,
zero, /* guarded */ false, frequent_reuse,