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

Publication Type:

Conference/Workshop Paper

Venue:

Proceedings of 14th IEEE International Conference on Emerging Techonologies and Factory (ETFA09)


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

@inproceedings{Behnam1534,
author = {Moris Behnam and Thomas Nolte and Reinder J. Bril},
title = { Improved SIRAP analysis for synchronization in hierarchical scheduled real-time systems},
month = {September},
year = {2009},
booktitle = {Proceedings of 14th IEEE International Conference on Emerging Techonologies and Factory (ETFA09)},
url = {http://www.es.mdh.se/publications/1534-}
}