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avoid atomic operations on statistics if zero

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daan 2020-07-22 11:08:16 -07:00
parent c5406f327e
commit 341048f61e
1 changed files with 1 additions and 0 deletions
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src/stats.c
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@ -70,6 +70,7 @@ void _mi_stat_decrease(mi_stat_count_t* stat, size_t amount) {
// must be thread safe as it is called from stats_merge
static void mi_stat_add(mi_stat_count_t* stat, const mi_stat_count_t* src, int64_t unit) {
if (stat==src) return;
if (src->allocated==0 && src->freed==0) return;
mi_atomic_addi64( &stat->allocated, src->allocated * unit);
mi_atomic_addi64( &stat->current, src->current * unit);
mi_atomic_addi64( &stat->freed, src->freed * unit);