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Tcache: Make incremental gc bytes configurable.

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This commit is contained in:
David Goldblatt
2020-05-11 15:53:30 -07:00
committed by David Goldblatt
parent ec0b579563
commit d338dd45d7
6 changed files with 15 additions and 8 deletions
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4
src/jemalloc.c
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@@ -1389,6 +1389,10 @@ malloc_conf_init_helper(sc_data_t *sc_data, unsigned bin_shard_sizes[SC_NBINS],
CONF_HANDLE_UNSIGNED(opt_tcache_nslots_large,
"tcache_nslots_large", 1, 2048,
CONF_CHECK_MIN, CONF_CHECK_MAX, /* clip */ true)
CONF_HANDLE_SIZE_T(opt_tcache_gc_incr_bytes,
"tcache_gc_incr_bytes", 1024, SIZE_T_MAX,
CONF_CHECK_MIN, CONF_DONT_CHECK_MAX,
/* clip */ true)
/*
* The runtime option of oversize_threshold remains

10
src/tcache.c
View File

@@ -33,6 +33,12 @@ unsigned opt_tcache_nslots_large = 20;
*/
ssize_t opt_lg_tcache_nslots_mul = -1;
/*
* Number of allocation bytes between tcache incremental GCs. Again, this
* default just seems to work well; more tuning is possible.
*/
size_t opt_tcache_gc_incr_bytes = 65536;
cache_bin_info_t *tcache_bin_info;
/* Total stack size required (per tcache). Include the padding above. */
@@ -62,7 +68,7 @@ tcache_salloc(tsdn_t *tsdn, const void *ptr) {
uint64_t
tcache_gc_new_event_wait(tsd_t *tsd) {
return TCACHE_GC_INCR_BYTES;
return opt_tcache_gc_incr_bytes;
}
uint64_t
@@ -72,7 +78,7 @@ tcache_gc_postponed_event_wait(tsd_t *tsd) {
uint64_t
tcache_gc_dalloc_new_event_wait(tsd_t *tsd) {
return TCACHE_GC_INCR_BYTES;
return opt_tcache_gc_incr_bytes;
}
uint64_t