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Towards an Automatic Parametric WCET Analysis

Authors Stefan Bygde, Björn Lisper



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Stefan Bygde
Björn Lisper

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Stefan Bygde and Björn Lisper. Towards an Automatic Parametric WCET Analysis. In 8th International Workshop on Worst-Case Execution Time Analysis (WCET'08). Open Access Series in Informatics (OASIcs), Volume 8, pp. 1-9, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2008)
https://doi.org/10.4230/OASIcs.WCET.2008.1659

Abstract

Static WCET analysis obtains a safe estimation of the WCET of a program. The timing behaviour of a program depends in many cases on input, and an analysis could take advantage of this information to produce a formula in input variables as estimation of the WCET, rather than a constant. A method to do this was suggested in [12]. We have implemented a working prototype of the method to evaluate its feasibility in practice. We show how to reduce complexity of the method and how to simplify parts of it to make it practical for implementation. The prototype implementation indicates that the method presented in [12] successfully can be implemented for a simple imperative language, mostly by using existing libraries.
Keywords
  • WCET
  • Flow Analysis
  • Parametric
  • Symbolic

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