public void updateSendTime(long value) {
    responseSendTime.update(value);
    if (responseSendTimeBySize != null) {
      responseSendTimeBySize.update(value);
    }
    timeSpentTillNow += value;
    responseTotalTime.update(timeSpentTillNow);
    if (responseTotalTimeBySize != null) {
      responseTotalTimeBySize.update(timeSpentTillNow);
    }
  }
Updates few metrics when send completes
@param value the time spent by the response to be completely sent
ambry-api/src/main/java/com/github/ambry/network/ServerNetworkResponseMetrics.java