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Implementing and Verifying EDF Preemption-Level Resource Control

  • Mark Louis Fairbairn
  • Alan Burns
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7308)

Abstract

To support Earliest Deadline First (EDF) dispatching of application tasks the Ada language has had to incorporate Baker’s Stack Resource Protocol (SRP). This protocol has proved problematic both in terms of its language definition and implementation. This paper proposes a means of verifying the implementation of complex language features. It describes a prototype tool that allows a comparison to be made between the output of an executing program and a diverse simulator that directly implements EDF+SRP. The tool creates a collection of cases (scenarios); for each of which a program is automatically generated (and executed) and a separate simulation script produced. Tests on an existing run-time for Ada has shown that in certain circumstances an Ada program and its corresponding simulation diverge.

Keywords

real-time EDF resource control 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Mark Louis Fairbairn
    • 1
  • Alan Burns
    • 1
  1. 1.Department of Computer ScienceUniversity of YorkUK

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