Self-tuning schedulers for legacy real-time applications

  • Authors:
  • Tommaso Cucinotta;Fabio Checconi;Luca Abeni;Luigi Palopoli

  • Affiliations:
  • Scuola Sup. S. Anna, Pisa, Italy;Scuola Sup. S. Anna, Pisa, Italy;University of Trento, Trento, Italy;University of Trento, Trento, Italy

  • Venue:
  • Proceedings of the 5th European conference on Computer systems
  • Year:
  • 2010

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Abstract

We present an approach for adaptive scheduling of soft real-time legacy applications (for which no timing information is exposed to the system). Our strategy is based on the combination of two techniques: 1) a real-time monitor that observes the sequence of events generated by the application to infer its activation period, 2) a feedback mechanism that adapts the scheduling parameters to ensure a timely execution of the application. By a thorough experimental evaluation of an implementation of our approach, we show its performance and its efficiency.