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do not reclaim segments on collect

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daan 2020-01-23 15:48:51 -08:00
parent 76e727f7d1
commit 12701b1aac
1 changed files with 13 additions and 18 deletions
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31
src/heap.c
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@ -114,26 +114,21 @@ static void mi_heap_collect_ex(mi_heap_t* heap, mi_collect_t collect)
if (!mi_heap_is_initialized(heap)) return; if (!mi_heap_is_initialized(heap)) return;
_mi_deferred_free(heap, collect >= MI_FORCE); _mi_deferred_free(heap, collect >= MI_FORCE);
// collect (some) abandoned pages // note: never reclaim on collect but leave it to threads that need storage to reclaim
if (collect >= MI_NORMAL && !heap->no_reclaim) { if (
if (collect == MI_NORMAL) { #ifdef NDEBUG
// this may free some segments (but also take ownership of abandoned pages) collect == MI_FORCE
_mi_segment_try_reclaim_abandoned(heap, false, &heap->tld->segments); #else
} collect >= MI_FORCE
else if ( #endif
#ifdef NDEBUG && _mi_is_main_thread() && mi_heap_is_backing(heap) && !heap->no_reclaim)
collect == MI_FORCE {
#else // the main thread is abandoned (end-of-program), try to reclaim all abandoned segments.
collect >= MI_FORCE // if all memory is freed by now, all segments should be freed.
#endif _mi_segment_try_reclaim_abandoned(heap, true, &heap->tld->segments);
&& _mi_is_main_thread() && mi_heap_is_backing(heap))
{
// the main thread is abandoned (end-of-program), try to reclaim all abandoned segments.
// if all memory is freed by now, all segments should be freed.
_mi_segment_try_reclaim_abandoned(heap, true, &heap->tld->segments);
}
} }
// if abandoning, mark all pages to no longer add to delayed_free // if abandoning, mark all pages to no longer add to delayed_free
if (collect == MI_ABANDON) { if (collect == MI_ABANDON) {
mi_heap_visit_pages(heap, &mi_heap_page_never_delayed_free, NULL, NULL); mi_heap_visit_pages(heap, &mi_heap_page_never_delayed_free, NULL, NULL);