Translating end-to-end timing requirements to timing analysis model in component-based distributed real-time systems

Authors:
Saad Mubeen;Jukka Mäki-Turja;Mikael Sjödin
Affiliations:
Mälardalen University, Västerås, Sweden;Mälardalen University, Västerås, Sweden and Arcticus Systems, Järfälla, Sweden;Mälardalen University, Västerås, Sweden
Venue:
ACM SIGBED Review - Special Issue on the 24th Euromicro Conference on Real-Time Systems
Year:
2012

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Abstract

Often, component-based real-time systems are modeled with trigger and data chains. The end-to-end timing requirements on trigger chains are different from those on data chains. For a trigger chain, the interest lies in the calculation of holistic response time and its comparison with end-to-end deadline. Whereas, the schedulability of a data chain requires a comparison between its end-to-end latencies and corresponding deadlines. We discuss the problem of translating end-to-end timing requirements unambiguously from component-based real-time systems into timing analysis models which are required as input by the analysis tools. We also provide preliminary guidelines for such translations in the existing industrial tool suite.