Function rpmalloc_thread_statistics

source/extern/rpmalloc.c:3204–3269

}

void
rpmalloc_thread_statistics(rpmalloc_thread_statistics_t* stats) {
	memset(stats, 0, sizeof(rpmalloc_thread_statistics_t));
	heap_t* heap = get_thread_heap_raw();
	if (!heap)
		return;

	for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
		size_class_t* size_class = _memory_size_class + iclass;
		span_t* span = heap->size_class[iclass].partial_span;
		while (span) {
			size_t free_count = span->list_size;
			size_t block_count = size_class->block_count;
			if (span->free_list_limit < block_count)
				block_count = span->free_list_limit;
			free_count += (block_count - span->used_count);
			stats->sizecache += free_count * size_class->block_size;
			span = span->next;
		}
	}

#if ENABLE_THREAD_CACHE
	for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
		span_cache_t* span_cache;
		if (!iclass)
			span_cache = &heap->span_cache;
		else
			span_cache = (span_cache_t*)(heap->span_large_cache + (iclass - 1));
		stats->spancache += span_cache->count * (iclass + 1) * _memory_span_size;
	}
#endif

	span_t* deferred = (span_t*)atomic_load_ptr(&heap->span_free_deferred);
	while (deferred) {
		if (deferred->size_class != SIZE_CLASS_HUGE)
			stats->spancache += (size_t)deferred->span_count * _memory_span_size;
		deferred = (span_t*)deferred->free_list;
	}

#if ENABLE_STATISTICS
	stats->thread_to_global = (size_t)atomic_load64(&heap->thread_to_global);
	stats->global_to_thread = (size_t)atomic_load64(&heap->global_to_thread);

	for (size_t iclass = 0; iclass < LARGE_CLASS_COUNT; ++iclass) {
		stats->span_use[iclass].current = (size_t)atomic_load32(&heap->span_use[iclass].current);
		stats->span_use[iclass].peak = (size_t)atomic_load32(&heap->span_use[iclass].high);
		stats->span_use[iclass].to_global = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_global);
		stats->span_use[iclass].from_global = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_global);
		stats->span_use[iclass].to_cache = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_cache);
		stats->span_use[iclass].from_cache = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_cache);
		stats->span_use[iclass].to_reserved = (size_t)atomic_load32(&heap->span_use[iclass].spans_to_reserved);
		stats->span_use[iclass].from_reserved = (size_t)atomic_load32(&heap->span_use[iclass].spans_from_reserved);
		stats->span_use[iclass].map_calls = (size_t)atomic_load32(&heap->span_use[iclass].spans_map_calls);
	}
	for (size_t iclass = 0; iclass < SIZE_CLASS_COUNT; ++iclass) {
		stats->size_use[iclass].alloc_current = (size_t)atomic_load32(&heap->size_class_use[iclass].alloc_current);
		stats->size_use[iclass].alloc_peak = (size_t)heap->size_class_use[iclass].alloc_peak;
		stats->size_use[iclass].alloc_total = (size_t)atomic_load32(&heap->size_class_use[iclass].alloc_total);