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HPA: Make slab sizes and maxes configurable.

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This allows easy experimentation with them as tuning parameters.
This commit is contained in:
David Goldblatt
2020-09-04 15:22:47 -07:00
committed by David Goldblatt
parent 1c7da33317
commit bf025d2ec8
7 changed files with 37 additions and 10 deletions
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15
src/pa.c
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@@ -48,13 +48,14 @@ pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, emap_t *emap, base_t *base,
}
bool
pa_shard_enable_hpa(pa_shard_t *shard, hpa_t *hpa) {
/*
* These are constants for now; eventually they'll probably be
* tuneable.
*/
size_t ps_goal = 512 * 1024;
size_t ps_alloc_max = 256 * 1024;
pa_shard_enable_hpa(pa_shard_t *shard, hpa_t *hpa, size_t ps_goal,
size_t ps_alloc_max) {
ps_goal &= ~PAGE_MASK;
ps_alloc_max &= ~PAGE_MASK;
if (ps_alloc_max > ps_goal) {
ps_alloc_max = ps_goal;
}
if (hpa_shard_init(&shard->hpa_shard, hpa, &shard->edata_cache,
shard->ind, ps_goal, ps_alloc_max)) {
return true;