Automatic WCET Analysis of Real-Time Parallel Applications

Authors Haluk Ozaktas, Christine Rochange, Pascal Sainrat

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Haluk Ozaktas
Christine Rochange
Pascal Sainrat

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Haluk Ozaktas, Christine Rochange, and Pascal Sainrat. Automatic WCET Analysis of Real-Time Parallel Applications. In 13th International Workshop on Worst-Case Execution Time Analysis. Open Access Series in Informatics (OASIcs), Volume 30, pp. 11-20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2013)


Tomorrow's real-time embedded systems will be built upon multicore architectures. This raises two challenges. First, shared resources should be arbitrated in such a way that the WCET of independent threads running concurrently can be computed: in this paper, we assume that timepredictable multicore architectures are available. The second challenge is to develop software that achieves a high level of performance without impairing timing predictability. We investigate parallel software based on the POSIX threads standard and we show how the WCET of a parallel program can be analysed. We report experimental results obtained for typical parallel programs with an extended version of the OTAWA toolset.
  • WCET analysis
  • parallel programming
  • thread synchronisation


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