fbcode/cachelib/allocator/memory/MemoryPool.cpp

Reviewed By: fbarotov

Differential Revision: D101111749

fbshipit-source-id: 8fc0a2240fa04d127a78b7c8dc37025d65114ab9

Author: generatedunixname1395027625275998

cachelib/allocator/memory/MemoryPool.cpp

@@ -549,6 +549,7 @@ void MemoryPool::completeSlabRelease(const SlabReleaseContext& context) {
 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()});