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DOI: 10.4230/OASIcs.WCET.2007.1190
URN: urn:nbn:de:0030-drops-11904
URL: http://drops.dagstuhl.de/opus/volltexte/2007/1190/
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Wilhelm, Stephan ; Wachter, Björn

Towards Symbolic State Traversal for Efficient WCET Analysis of Abstract Pipeline and Cache Models

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Abstract

Static program analysis is a proven approach for obtaining safe and tight upper bounds on the worst-case execution time (WCET) of program tasks. It requires an analysis on the microarchitectural level, most notably pipeline and cache analysis. In our approach, the integrated pipeline and cache analysis operates on sets of possible abstract hardware states. Due to the growth of CPU complexity and the existence of timing anomalies, the analysis must handle an increasing number of possible abstract states for each program point. Symbolic methods have been proposed as a way to reduce memory consumption and improve runtime in order to keep pace with the growing hardware complexity. This paper presents the advances made since the original proposal and discusses a compact representation of abstract caches for integration with symbolic pipeline analysis.

BibTeX - Entry

@InProceedings{wilhelm_et_al:OASIcs:2007:1190,
  author =	{Stephan Wilhelm and Bj{\"o}rn Wachter},
  title =	{{Towards Symbolic State Traversal for Efficient WCET Analysis of Abstract Pipeline and Cache Models}},
  booktitle =	{7th International Workshop on Worst-Case Execution Time Analysis (WCET'07)},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-05-7},
  ISSN =	{2190-6807},
  year =	{2007},
  volume =	{6},
  editor =	{Christine Rochange},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2007/1190},
  URN =		{urn:nbn:de:0030-drops-11904},
  doi =		{http://dx.doi.org/10.4230/OASIcs.WCET.2007.1190},
  annote =	{Keywords: WCET, worst-case execution time, hard real-time, embedded systems, abstract  interpretation, pipeline analysis, cache analysis, symbolic state }
}

Keywords: WCET, worst-case execution time, hard real-time, embedded systems, abstract interpretation, pipeline analysis, cache analysis, symbolic state
Freie Schlagwörter (englisch): traversal BDD
Seminar: 7th International Workshop on Worst-Case Execution Time Analysis (WCET'07)
Issue Date: 2007
Date of publication: 13.11.2007


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