Impact of Little's law
Thursday, February 18, 2010
9:26 AM
Impact of Little's law
"Average number of requests awaiting service" (L) and "average time spent waiting" (W) are interchangeable concepts! 
"Average requests waiting for service" L is a concept of load L=λW.
Can characterize the effect of L as either
Changes in arrival rate λ.
Changes in the time spent waiting W.
Where performance P = W + tnetwork.
Thus performance P = tnetwork+L/λ