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Performance Analysis of Dynamic Priority Shifting

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Computer Performance Engineering (EPEW 2008)

Part of the book series: Lecture Notes in Computer Science ((LNPSE,volume 5261))

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Abstract

We investigate the benefit of priority shifting for resource allocation in systems with a shared resource, where higher priority implies better service. Priority schemes where priority levels are assigned fixed shares of the resource experience underutilisation if there are only low-priority tasks present. In these situations, lower priority tasks can be ‘shifted up’ to higher priority. This increases overall system utilisation and improves the service experienced by low-priority tasks. We present a shifting framework, study its properties and develop a Petri net model for a shifting algorithm. We analyse the model in order to identify situations where shifting of priorities is beneficial.

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Authors and Affiliations

  1. Institut für Informatik, Humboldt-Universität zu Berlin, Berlin, Germany

    Philipp Reinecke, Katinka Wolter & Johannes Zapotoczky

Authors
  1. Philipp Reinecke
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  2. Katinka Wolter
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  3. Johannes Zapotoczky
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Nigel Thomas Carlos Juiz

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© 2008 Springer-Verlag Berlin Heidelberg

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Reinecke, P., Wolter, K., Zapotoczky, J. (2008). Performance Analysis of Dynamic Priority Shifting. In: Thomas, N., Juiz, C. (eds) Computer Performance Engineering. EPEW 2008. Lecture Notes in Computer Science, vol 5261. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-87412-6_14

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  • DOI: https://doi.org/10.1007/978-3-540-87412-6_14

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-87411-9

  • Online ISBN: 978-3-540-87412-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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