Data-Flow Frameworks for Worst-Case Execution Time Analysis

  • Authors:
  • Johann Blieberger

  • Affiliations:
  • Department of Computer-Aided Automation, Technical University of Vienna, Treitlstr. 1, A-1040 Vienna, Austria blieb@auto.tuwien.ac.at

  • Venue:
  • Real-Time Systems
  • Year:
  • 2002

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Abstract

The purpose of this paper is to introduce frameworks based on data-flow equations which estimate the worst-case execution time (WCET) of real-time programs. These frameworks allow several different WCET analysis techniques with various precisions, which range from naïve approaches to exact analysis, provided exact knowledge on the program behavior is available. In addition, data-flow frameworks can also be used for symbolic analysis based on information derived automatically from the source code of the program.