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collect every N generic calls

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Daan Leijen 2025-03-02 17:06:25 -08:00
parent 4f1edad4fe
commit 58d13f6a4f
6 changed files with 27 additions and 7 deletions
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2
src/init.c
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@ -105,6 +105,7 @@ mi_decl_hidden mi_decl_cache_align const mi_heap_t _mi_heap_empty = {
{ {0}, {0}, 0, true }, // random
0, // page count
MI_BIN_FULL, 0, // page retired min/max
0, 0, // generic count
NULL, // next
false, // can reclaim
0, // tag
@ -147,6 +148,7 @@ mi_decl_cache_align mi_heap_t _mi_heap_main = {
{ {0x846ca68b}, {0}, 0, true }, // random
0, // page count
MI_BIN_FULL, 0, // page retired min/max
0, 0, // generic count
NULL, // next heap
false, // can reclaim
0, // tag

1
src/options.c
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@ -162,6 +162,7 @@ static mi_option_desc_t options[_mi_option_last] =
UNINIT, MI_OPTION(guarded_sample_rate)}, // 1 out of N allocations in the min/max range will be guarded (=4000)
{ 0, UNINIT, MI_OPTION(guarded_sample_seed)},
{ 0, UNINIT, MI_OPTION(target_segments_per_thread) }, // abandon segments beyond this point, or 0 to disable.
{ 10000, UNINIT, MI_OPTION(generic_collect) }, // collect heaps every N (=10000) generic allocation calls
};
static void mi_option_init(mi_option_desc_t* desc);

20
src/page.c
View file

@ -970,11 +970,23 @@ void* _mi_malloc_generic(mi_heap_t* heap, size_t size, bool zero, size_t huge_al
}
mi_assert_internal(mi_heap_is_initialized(heap));
// call potential deferred free routines
_mi_deferred_free(heap, false);
// do administrative tasks every N generic mallocs
if mi_unlikely(++heap->generic_count >= 100) {
heap->generic_collect_count += heap->generic_count;
heap->generic_count = 0;
// call potential deferred free routines
_mi_deferred_free(heap, false);
// free delayed frees from other threads (but skip contended ones)
_mi_heap_delayed_free_partial(heap);
// free delayed frees from other threads (but skip contended ones)
_mi_heap_delayed_free_partial(heap);
// collect every once in a while (10000 by default)
const long generic_collect = mi_option_get_clamp(mi_option_generic_collect, 1, 1000000L);
if (heap->generic_collect_count >= generic_collect) {
heap->generic_collect_count = 0;
mi_heap_collect(heap, false /* force? */);
}
}
// find (or allocate) a page of the right size
mi_page_t* page = mi_find_page(heap, size, huge_alignment);