Performance Evaluation of Components Using a Granularity-based Interface Between Real-Time Calculus and Timed Automata

Karine Altisen
(Verimag (Grenoble INP))
Yanhong Liu
(Verimag (Grenoble INP))
Matthieu Moy
(Verimag (Grenoble INP))

To analyze complex and heterogeneous real-time embedded systems, recent works have proposed interface techniques between real-time calculus (RTC) and timed automata (TA), in order to take advantage of the strengths of each technique for analyzing various components. But the time to analyze a state-based component modeled by TA may be prohibitively high, due to the state space explosion problem. In this paper, we propose a framework of granularity-based interfacing to speed up the analysis of a TA modeled component. First, we abstract fine models to work with event streams at coarse granularity. We perform analysis of the component at multiple coarse granularities and then based on RTC theory, we derive lower and upper bounds on arrival patterns of the fine output streams using the causality closure algorithm. Our framework can help to achieve tradeoffs between precision and analysis time.

In Alessandra Di Pierro and Gethin Norman: Proceedings Eighth Workshop on Quantitative Aspects of Programming Languages (QAPL 2010), Paphos, Cyprus, 27-28th March 2010 , Electronic Proceedings in Theoretical Computer Science 28, pp. 16–33.
Published: 26th June 2010.

ArXived at: http://dx.doi.org/10.4204/EPTCS.28.2 bibtex PDF

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