Method getStats

cachelib/allocator/memory/MemoryPool.cpp:567–584

}

MPStats MemoryPool::getStats() const {
  LockHolder l(lock_);
  folly::F14FastMap<ClassId, ACStats> acStats;
  acStats.reserve(ac_.size());
  std::set<ClassId> classIds;
  for (const auto& ac : ac_) {
    acStats.insert({ac->getId(), ac->getStats()});
    classIds.insert(ac->getId());
  }

  const auto availableMemory = getUnAllocatedSlabMemory();
  const auto slabsUnAllocated =
      availableMemory > 0 ? availableMemory / Slab::kSize - freeSlabs_.size()
                          : 0;
  return MPStats{std::move(classIds), std::move(acStats), freeSlabs_.size(),
                 slabsUnAllocated,    nSlabResize_,       nSlabRebalance_,
                 curSlabsAdvised_};
}