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Publication:Nogueira11
Abstract Hard real-time operating systems have been 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. of multiprocessor hard real-time systems.
Author André Nogueira + , Mário Calha +
Booktitle Proceedings of the 2011 IEEE 17th International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA '11)  +
Key Nogueira11  +
Month aug  +
NumPubDate 2,011.08  +
Pages 3–8  +
ResearchLine Timeliness and Adaptation in Dependable Systems (TADS) +
Title Predictability and Efficiency in Contemporary Hard RTOS for Multiprocessor Systems  +
Type inproceedings  +
Url http://www.navigators.di.fc.ul.pt/archive/papers/06029901.pdf  +
Volume 2  +
Year 2011  +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 23 July 2014 10:17:52  +
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