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