return n.helper.Name()
}

func (n *Node) QueueLength() *timeseries.Instance {
	return &n.qLength
}

func (n *Node) QueueLatency() *timeseries.Instance {
	return &n.qLatency
}

func (n *Node) calcRequestDuration() time.Duration {
	// Get the current queue length.
	qLen := n.q.Len()
	qLatency := n.calcQLatency(qLen)

	// Add the observations
	tnow := time.Now()
	n.qLength.AddObservation(float64(qLen), tnow)