code: private long stop(long time, String name){
  		m_total.stop(time);
  		TimerGroupItem timer = m_timers.get(getName(name));
  		long elapsedTime = 0;
  		if (timer != null){
  			elapsedTime = timer.stop(time);
  		}
  		checkLog(time);
  		return elapsedTime;
  	}
docs: Stop the named timer if the condition is true.