“Predictability and Efficiency in Contemporary Hard RTOS for Multiprocessor Systems”
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{{Publication | {{Publication | ||
| - | | | + | |type=inproceedings |
| - | + | |title=Predictability and Efficiency in Contemporary Hard RTOS for Multiprocessor Systems | |
| - | + | |author=André Nogueira, Mário Calha | |
| - | + | |ResearchLine=Timeliness and Adaptation in Dependable Systems (TADS) | |
| - | + | |month=aug | |
| - | + | |year=2011 | |
| - | + | |abstract=Hard real-time operating systems have been mostly designed | |
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for uniprocessors. Driven by the high computational demand of | for uniprocessors. Driven by the high computational demand of | ||
real-time systems, these operating systems have been re-designed for | real-time systems, these operating systems have been re-designed for | ||
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affect the predictability and performance of multiprocessor hard | affect the predictability and performance of multiprocessor hard | ||
real-time systems. | real-time systems. | ||
| - | + | |booktitle=Proceedings of the 2011 IEEE 17th International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA '11) | |
| - | + | |volume=2 | |
| - | |booktitle= | + | |pages=3--8 |
| - | + | |url=http://www.navigators.di.fc.ul.pt/archive/papers/06029901.pdf | |
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Latest revision as of 10:17, 23 July 2014
in Proceedings of the 2011 IEEE 17th International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA '11), vol. 2, Aug. 2011, pp. 3–8.
Abstract: Hard real-time operating systems have been mostly designed for uniprocessors. Driven by the high computational demand of real-time systems, these operating systems have been re-designed for multiprocessors. Researchers have been identifying issues that affect the predictability of multiprocessor hard real-time systems. These sources of unpredictability make it difficult to accurately predict safe and tight worst-case execution time bounds of real-time tasks. As a result, the performance of multiprocessor hard real-time systems is compromised. In this paper, we present a middleware architecture that aims to provide predictability and high efficiency for multiprocessor hard real-time systems. The middleware supports hybrid hard real-time tasks, which are adaptive hard real-time services that intend to ensure predictability and performance. We also present a prototype of this architecture. Moreover, we identify and discuss issues that affect the predictability and performance of multiprocessor hard real-time systems.
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Research line(s): Timeliness and Adaptation in Dependable Systems (TADS)
