mirrors/mimalloc
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

decommit segment cache on force collect

Browse Source
This commit is contained in:
Daan 2022-02-02 18:28:02 -08:00
parent ccfe005731
commit 932f866105
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/segment-cache.c
View File

@ -126,14 +126,14 @@ static mi_decl_noinline void mi_segment_cache_purge(bool force, mi_os_tld_t* tld
if (idx >= MI_CACHE_MAX) idx = 0; // wrap if (idx >= MI_CACHE_MAX) idx = 0; // wrap
mi_cache_slot_t* slot = &cache[idx]; mi_cache_slot_t* slot = &cache[idx];
mi_msecs_t expire = mi_atomic_loadi64_relaxed(&slot->expire); mi_msecs_t expire = mi_atomic_loadi64_relaxed(&slot->expire);
if (expire != 0 && now >= expire) { // racy read if (expire != 0 && (force || now >= expire)) { // racy read
// seems expired, first claim it from available // seems expired, first claim it from available
purged++; purged++;
mi_bitmap_index_t bitidx = mi_bitmap_index_create_from_bit(idx); mi_bitmap_index_t bitidx = mi_bitmap_index_create_from_bit(idx);
if (_mi_bitmap_claim(cache_available, MI_CACHE_FIELDS, 1, bitidx, NULL)) { if (_mi_bitmap_claim(cache_available, MI_CACHE_FIELDS, 1, bitidx, NULL)) {
// was available, we claimed it // was available, we claimed it
expire = mi_atomic_loadi64_acquire(&slot->expire); expire = mi_atomic_loadi64_acquire(&slot->expire);
if (expire != 0 && now >= expire) { // safe read if (expire != 0 && (force || now >= expire)) { // safe read
// still expired, decommit it // still expired, decommit it
mi_atomic_storei64_relaxed(&slot->expire,(mi_msecs_t)0); mi_atomic_storei64_relaxed(&slot->expire,(mi_msecs_t)0);
mi_assert_internal(!mi_commit_mask_is_empty(&slot->commit_mask) && _mi_bitmap_is_claimed(cache_available_large, MI_CACHE_FIELDS, 1, bitidx)); mi_assert_internal(!mi_commit_mask_is_empty(&slot->commit_mask) && _mi_bitmap_is_claimed(cache_available_large, MI_CACHE_FIELDS, 1, bitidx));