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CATA
2009

Comparison of Strategies for Serving Two Streams of Jobs

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Comparison of Strategies for Serving Two Streams of Jobs
Highly varying job demands generally consist of many short jobs mixed with several long jobs. In this paper, we consider a simple scenario where two job streams with different level of demands must be processed by the same server. We study the performance of several round-robin variants and FCFSP in such a scenario. The simulation results show that on the one hand, by employing immediate preemption to favor newly arrived jobs, round-robin can effectively reduce the mean response time for the short-job stream, while only slightly increasing the response time for the longjob stream. On the other hand, by assuming the availability of job stream information and always favoring the short-job stream, FCFSP may improve performance. However, to further improve performance, other information if available (e.g., the characteristics of each individual stream) should be considered.
Feng Zhang, Lester Lipsky, Sarah Tasneem, Steve Th
Added 08 Nov 2010
Updated 08 Nov 2010
Type Conference
Year 2009
Where CATA
Authors Feng Zhang, Lester Lipsky, Sarah Tasneem, Steve Thompson
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