public void cacheMaintenanceTurnDone(long timeSpentNs) {
    //noinspection NonAtomicOperationOnVolatileField
    housekeeperTurnsDone++;
    //noinspection NonAtomicOperationOnVolatileField
    housekeeperTotalTimeNs += timeSpentNs;
  }
public void cacheMaintenanceTurnDone(long timeSpentNs)