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Clear out small object free space in large segments Part 2

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Sergiy Kuryata 2024-12-10 16:37:24 -08:00
parent 47edd8bd81
commit 008bec3013
1 changed files with 7 additions and 0 deletions
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7
src/segment.c
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@ -1404,6 +1404,13 @@ static bool mi_segment_check_free(mi_segment_t* segment, size_t slices_needed, s
slice = slice + slice->slice_count; slice = slice + slice->slice_count;
} }
if (segment->page_kind == MI_PAGE_LARGE) {
// Clear out small object free space in large segments
size_t small_free_space_mask = mi_free_space_mask_from_blocksize(MI_SMALL_OBJ_SIZE_MAX);
small_free_space_mask = small_free_space_mask | (small_free_space_mask - 1);
free_space_mask &= ~small_free_space_mask;
}
if (free_space_mask != 0) { if (free_space_mask != 0) {
mi_atomic_or_acq_rel(&segment->free_space_mask, free_space_mask); mi_atomic_or_acq_rel(&segment->free_space_mask, free_space_mask);
} }