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Safe measurement-based WCET estimation Deverge, Jean-François Puaut, Isabelle Real-Time Timing Analysis Test-Case generation Processor Architecture This paper explores the issues to be addressed to provide safe worst-case execution time (WCET) estimation methods based on measurements. We suggest to use structural testing for the exhaustive exploration of paths in a program. Since test data generation is in general too complex to be used in practice for most real-size programs, we propose to generate test data for program segments only, using program clustering. Moreover, to be able to combine execution time of program segments and to obtain the WCET of the whole program, we advocate the use of compiler techniques to reduce (ideally eliminate) the timing variability of program segments and to make the time of program segments independent from one another. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Jean-François Deverge and Isabelle Puaut 2007 Is Part Of OASIcs, Volume 1, 5th International Workshop on Worst-Case Execution Time Analysis (WCET'05) (2007) InProceedings Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/OASIcs.WCET.2005.808 urn:nbn:de:0030-drops-8089 https://drops.dagstuhl.de/entities/document/10.4230/OASIcs.WCET.2005.808 eng https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode