Method getTotalObjSizeBytes

cachelib/object_cache/ObjectCacheSizeController.h:109–121

template <typename AllocatorT>
size_t ObjectCacheSizeController<AllocatorT>::getTotalObjSizeBytes() const {
  auto totalObjSize = objCache_.getTotalObjectSize();
  if (objCache_.config_.fragmentationTrackingEnabled &&
      folly::usingJEMalloc()) {
    auto [jemallocAllocatedBytes, jemallocActiveBytes] =
        trackJemallocMemStats();
    // proportionally add Jemalloc external fragmentation bytes (i.e.
    // jemallocActiveBytes - jemallocAllocatedBytes)
    totalObjSize = static_cast<size_t>(
        1.0 * totalObjSize / jemallocAllocatedBytes * jemallocActiveBytes);
  }
  return totalObjSize;
}

template <typename AllocatorT>
void ObjectCacheSizeController<AllocatorT>::work() {