id: 06087999 dt: a an: 06087999 au: Altmeyer, Sebastian; Gebhard, Gernot ti: WCET analysis for preemptive scheduling. so: Kimer, Raimund (ed.), 8th international workshop on worst-case execution time analysis (WCET’08). Papers based on the presentations at the workshop, July 1, 2008, Prague, Czech Republic. Wadern: Schloss Dagstuhl ‒ Leibniz Zentrum für Informatik (ISBN 978-3-939897-10-1). OASIcs ‒ OpenAccess Series in Informatics 8, 8 p., electronic only (2008). py: 2008 pu: Wadern: Schloss Dagstuhl ‒ Leibniz Zentrum für Informatik la: EN cc: ut: WCET; preemption ci: li: doi:10.4230/OASIcs.WCET.2008.1664 ab: Summary: Hard real-time systems induce strict constraints on the timing of the task set. Validation of these timing constraints is thus a major challenge during the design of such a system. Whereas the derivation of timing guarantees must already be considered complex if tasks are running to completion, it gets even more complex if tasks are scheduled preemptively ‒ especially due to caches, deployed to improve the average performance. In this paper we propose a new method to compute valid upper bounds on a task’s worst case execution time (WCET). Our method approximates an optimal memory layout such that the set of possibly evicted cache-entries during preemption is minimized. This set then delivers information to bound the execution time of tasks under preemption in an adopted WCET analysis. rv: