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A sample path analysis of the delay in the M/G/C system

Published online by Cambridge University Press:  14 July 2016

Sridhar Seshadri*
Affiliation:
New York University
*
Postal address: Department of Statistics and Operations Research, Leonard A. Stern School of Business, New York University, NY 10012, USA.

Abstract

Using sample path analysis we show that under the same load the mean delay in queue in the M/G/2 system is smaller than that in the corresponding M/G/1 system, when the service time has either the DMRL or NBU property and the service discipline is FCFS. The proof technique uses a new device that equalizes the work in a two server system with that in a single sterver system. Other interesting quantities such as the average difference in work between the two servers in the GI/G/2 system and an exact alternate derivation of the mean delay in the M/M/2 system from sample path analysis are presented. For the same load, we also show that the mean delay in the M/G/C system with general service time distribution is smaller than that in the M/G/1 system when the traffic intensity is less than 1/c.

MSC classification

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 1996 

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