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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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10
include/jemalloc/internal/pai.h
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@@ -20,7 +20,7 @@ struct pai_s {
* the results are not necessarily zeroed.
*/
size_t (*alloc_batch)(tsdn_t *tsdn, pai_t *self, size_t size,
size_t nallocs, edata_list_active_t *results,
size_t nallocs, edata_list_active_t *results, bool frequent_reuse,
bool *deferred_work_generated);
bool (*expand)(tsdn_t *tsdn, pai_t *self, edata_t *edata,
size_t old_size, size_t new_size, bool zero,
@@ -50,9 +50,10 @@ pai_alloc(tsdn_t *tsdn, pai_t *self, size_t size, size_t alignment,
static inline size_t
pai_alloc_batch(tsdn_t *tsdn, pai_t *self, size_t size, size_t nallocs,
edata_list_active_t *results, bool *deferred_work_generated) {
edata_list_active_t *results, bool frequent_reuse,
bool *deferred_work_generated) {
return self->alloc_batch(tsdn, self, size, nallocs, results,
deferred_work_generated);
frequent_reuse, deferred_work_generated);
}
static inline bool
@@ -91,7 +92,8 @@ pai_time_until_deferred_work(tsdn_t *tsdn, pai_t *self) {
* each item in the list.
*/
size_t pai_alloc_batch_default(tsdn_t *tsdn, pai_t *self, size_t size,
size_t nallocs, edata_list_active_t *results, bool *deferred_work_generated);
size_t nallocs, edata_list_active_t *results, bool frequent_reuse,
bool *deferred_work_generated);
/* Ditto, for dalloc. */
void pai_dalloc_batch_default(tsdn_t *tsdn, pai_t *self,
edata_list_active_t *list, bool *deferred_work_generated);