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Add a per-arena oversize_threshold.

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This can let manual arenas trade off memory and CPU the way auto arenas do.
This commit is contained in:
David Goldblatt
2020-11-11 13:34:43 -08:00
committed by David Goldblatt
parent 4ca3d91e96
commit cf2549a149
10 changed files with 194 additions and 12 deletions
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7
src/pa.c
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@@ -17,7 +17,8 @@ pa_nactive_sub(pa_shard_t *shard, size_t sub_pages) {
bool
pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, emap_t *emap, base_t *base,
unsigned ind, pa_shard_stats_t *stats, malloc_mutex_t *stats_mtx,
nstime_t *cur_time, ssize_t dirty_decay_ms, ssize_t muzzy_decay_ms) {
nstime_t *cur_time, size_t oversize_threshold, ssize_t dirty_decay_ms,
ssize_t muzzy_decay_ms) {
/* This will change eventually, but for now it should hold. */
assert(base_ind_get(base) == ind);
if (edata_cache_init(&shard->edata_cache, base)) {
@@ -25,8 +26,8 @@ pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, emap_t *emap, base_t *base,
}
if (pac_init(tsdn, &shard->pac, base, emap, &shard->edata_cache,
cur_time, dirty_decay_ms, muzzy_decay_ms, &stats->pac_stats,
stats_mtx)) {
cur_time, oversize_threshold, dirty_decay_ms, muzzy_decay_ms,
&stats->pac_stats, stats_mtx)) {
return true;
}