code: protected void recordTiming(String statKey, long timeSpan) {
          final String longKey = getActualStatKey(statKey);
          statsCollector.recordTiming(longKey, timeSpan);
      }
docs: Prefixes the stats key with the stat key prefix, and then calls statsCollector.recordTiming.
  
  @param statKey  statKey
  @param timeSpan timeSpan