NDLI: Suspension-Aware Analysis for Hard Real-Time Multiprocessor Scheduling

Content Provider	IEEE Xplore Digital Library
Author	Cong Liu Anderson, J.H.
Copyright Year	2013
Description	Author affiliation: Dept. of Comput. Sci., Univ. of North Carolina at Chapel Hill, Chapel Hill, NC, USA (Cong Liu; Anderson, J.H.)
Abstract	In many real-time systems, tasks may experience suspension delays when accessing external devices. The problem of analyzing task systems with such suspensions on multiprocessors has been relatively unexplored. The commonly used suspension-oblivious approach of treating all suspensions as computation can be quite pessimistic. As an alternative, this paper presents the first suspension-aware hard real-time multiprocessor schedulability analysis for task systems with suspensions, under both global fixed-priority and global EDF scheduling. In experiments presented herein, the proposed schedulability tests proved to be superior to suspension-oblivious tests. Moreover, when applied to ordinary arbitrary-deadline sporadic task systems with no suspensions, the proposed analysis for fixed-priority scheduling improves upon prior analysis.
Starting Page	271
Ending Page	281
File Size	388077
Page Count	11
File Format	PDF
ISBN	9780769550541
ISSN	10683070
DOI	10.1109/ECRTS.2013.36
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-09
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Suspensions Time factors Delays Interference Program processors Real-time systems Upper bound schedulability analysis hard real-time scheduling self-suspension
Content Type	Text
Resource Type	Article

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