code: public void recordGetTime(long timeNS, boolean emptyResponse, long totalBytes, long keyBytes) {
          recordTime(Tracked.GET, timeNS, emptyResponse ? 1 : 0, totalBytes, keyBytes, 0);
      }
docs: Record the duration of a get operation, along with whether or not an
  empty response (ie no values matched) and the size of the values
  returned.