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Improved SIRAP analysis for synchronization in hierarchical scheduled real-time systems

Authors: Moris Behnam, Thomas Nolte, Reinder J. Bril (TU/e, The Netherlands)
Source: Proceedings of 14th IEEE International Conference on Emerging Techonologies and Factory (ETFA'09), Mallorca, Spain
 

Abstract

We present our ongoing work on synchronization in hierarchical scheduled real-time systems, where tasks are scheduled using fixed-priority pre-emptive scheduling. In this paper, we show that the original local schedulability analysis of the synchronization protocol SIRAP is very pessimistic when tasks of a subsystem access many global shared resources. The analysis therefore suggests that a subsystem requires more CPU resources than necessary. A new way to perform the schedulability analysis is presented which can make the SIRAP protocol more efficient in terms of calculated CPU resource needs.
 

BibTeX entry

@inproceedings{Behnam_1784:2009,
   author = {Moris Behnam and Thomas Nolte and Reinder J. Bril},
   title = { Improved SIRAP analysis for synchronization in hierarchical scheduled real-time systems},
   booktitle = {Proceedings of 14th IEEE International Conference on Emerging Techonologies and Factory (ETFA'09)},
   month = {September},
   year = {2009},
   url = {http://www.mrtc.mdh.se/index.php?choice=publications&id=1784},
}

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