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

被引：0
|
作者：
Behnam, Moris [1 ]
Nolte, Thomas [1 ]
Bril, Reinder J. [2 ]
机构：
[1] Malardalen Real Time Res Ctr, SE-72123 Vasteras, Sweden
[2] Tech Univ Eindhoven, NL-5612 AZ Eindhoven, Netherlands
来源：
2009 IEEE CONFERENCE ON EMERGING TECHNOLOGIES & FACTORY AUTOMATION (EFTA 2009) | 2009年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
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 [4] 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.
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页数：4
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