M/G/1/MLPS compared to M/G/1/PS

  • Authors:
  • Samuli Aalto;Urtzi Ayesta;Eeva Nyberg-Oksanen

  • Affiliations:
  • Networking Laboratory, Helsinki University of Technology, P.O. Box 3000, FIN-02015 HUT, Helsinki, Finland;France Telecom R & D and INRIA Sophia Antipolis, France;Networking Laboratory, Helsinki University of Technology, P.O. Box 3000, FIN-02015 HUT, Helsinki, Finland

  • Venue:
  • Operations Research Letters
  • Year:
  • 2005

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Abstract

Multilevel processor sharing scheduling disciplines have recently been resurrected in papers that focus on the differentiation between short and long TCP flows in the Internet. We prove that, for M/G/1 queues, such disciplines are better than the processor sharing discipline with respect to the mean delay whenever the hazard rate of the service time distribution is decreasing.