void Stats::populateGlobalCacheStats()

in cachelib/allocator/CacheStats.cpp [50:137]

• 80 lines of code
• 3 McCabe index (conditional complexity)

void Stats::populateGlobalCacheStats(GlobalCacheStats& ret) const {
#ifndef SKIP_SIZE_VERIFY
  SizeVerify<sizeof(Stats)> a = SizeVerify<16144>{};
  std::ignore = a;
#endif
  ret.numCacheGets = numCacheGets.get();
  ret.numCacheGetMiss = numCacheGetMiss.get();
  ret.numCacheGetExpiries = numCacheGetExpiries.get();
  ret.numCacheRemoves = numCacheRemoves.get();
  ret.numCacheRemoveRamHits = numCacheRemoveRamHits.get();
  ret.numRamDestructorCalls = numRamDestructorCalls.get();
  ret.numDestructorExceptions = numDestructorExceptions.get();

  ret.numNvmGets = numNvmGets.get();
  ret.numNvmGetMiss = numNvmGetMiss.get();
  ret.numNvmGetMissFast = numNvmGetMissFast.get();
  ret.numNvmGetMissExpired = numNvmGetMissExpired.get();
  ret.numNvmGetMissDueToInflightRemove = numNvmGetMissDueToInflightRemove.get();
  ret.numNvmGetMissErrs = numNvmGetMissErrs.get();
  ret.numNvmGetCoalesced = numNvmGetCoalesced.get();
  ret.numNvmPuts = numNvmPuts.get();
  ret.numNvmDeletes = numNvmDeletes.get();
  ret.numNvmSkippedDeletes = numNvmSkippedDeletes.get();
  ret.numNvmPutErrs = numNvmPutErrs.get();
  ret.numNvmPutEncodeFailure = numNvmPutEncodeFailure.get();
  ret.numNvmAbortedPutOnTombstone += numNvmAbortedPutOnTombstone.get();
  ret.numNvmCompactionFiltered += numNvmCompactionFiltered.get();
  ret.numNvmAbortedPutOnInflightGet = numNvmAbortedPutOnInflightGet.get();
  ret.numNvmCleanEvict = numNvmCleanEvict.get();
  ret.numNvmCleanDoubleEvict = numNvmCleanDoubleEvict.get();
  ret.numNvmDestructorCalls = numNvmDestructorCalls.get();
  ret.numNvmDestructorRefcountOverflow = numNvmDestructorRefcountOverflow.get();
  ret.numNvmExpiredEvict = numNvmExpiredEvict.get();
  ret.numNvmPutFromClean = numNvmPutFromClean.get();
  ret.numNvmEvictions = numNvmEvictions.get();

  ret.numNvmEncryptionErrors = numNvmEncryptionErrors.get();
  ret.numNvmDecryptionErrors = numNvmDecryptionErrors.get();

  ret.numNvmRejectsByExpiry = numNvmRejectsByExpiry.get();
  ret.numNvmRejectsByClean = numNvmRejectsByClean.get();
  ret.numNvmRejectsByAP = numNvmRejectsByAP.get();

  ret.numChainedParentItems = numChainedParentItems.get();
  ret.numChainedChildItems = numChainedChildItems.get();
  ret.numNvmAllocAttempts = numNvmAllocAttempts.get();
  ret.numNvmAllocForItemDestructor = numNvmAllocForItemDestructor.get();
  ret.numNvmItemDestructorAllocErrors = numNvmItemDestructorAllocErrors.get();

  ret.allocateLatencyNs = this->allocateLatency_.estimate();
  ret.moveChainedLatencyNs = this->moveChainedLatency_.estimate();
  ret.moveRegularLatencyNs = this->moveRegularLatency_.estimate();
  ret.nvmLookupLatencyNs = this->nvmLookupLatency_.estimate();
  ret.nvmInsertLatencyNs = this->nvmInsertLatency_.estimate();
  ret.nvmRemoveLatencyNs = this->nvmRemoveLatency_.estimate();
  ret.ramEvictionAgeSecs = this->ramEvictionAgeSecs_.estimate();
  ret.ramItemLifeTimeSecs = this->ramItemLifeTimeSecs_.estimate();
  ret.nvmSmallLifetimeSecs = this->nvmSmallLifetimeSecs_.estimate();
  ret.nvmLargeLifetimeSecs = this->nvmLargeLifetimeSecs_.estimate();
  ret.nvmEvictionSecondsPastExpiry =
      this->nvmEvictionSecondsPastExpiry_.estimate();
  ret.nvmEvictionSecondsToExpiry = this->nvmEvictionSecondsToExpiry_.estimate();
  ret.nvmPutSize = this->nvmPutSize_.estimate();

  auto accum = [](const PerPoolClassAtomicCounters& c) {
    uint64_t sum = 0;
    for (const auto& x : c) {
      for (const auto& v : x) {
        sum += v.get();
      }
    }
    return sum;
  };
  ret.allocAttempts = accum(*allocAttempts);
  ret.allocFailures = accum(*allocFailures);
  ret.numEvictions = accum(*chainedItemEvictions);
  ret.numEvictions += accum(*regularItemEvictions);

  ret.invalidAllocs = invalidAllocs.get();
  ret.numRefcountOverflow = numRefcountOverflow.get();

  ret.numEvictionFailureFromAccessContainer = evictFailAC.get();
  ret.numEvictionFailureFromConcurrentFill = evictFailConcurrentFill.get();
  ret.numEvictionFailureFromParentAccessContainer = evictFailParentAC.get();
  ret.numEvictionFailureFromMoving = evictFailMove.get();
  ret.numEvictionFailureFromParentMoving = evictFailParentMove.get();
  ret.numAbortedSlabReleases = numAbortedSlabReleases.get();
}