NDLI: Synthesis of Optimal Interfaces for Hierarchical Scheduling with Resources

Content Provider	IEEE Xplore Digital Library
Author	Insik Shin Behnam, M. Nolte, T. Nolin, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci., KAIST, Daejeon (Insik Shin) \|\| Malardalen Real-Time Res. Centre, Malardalen Univ., Vasteras (Behnam, M.; Nolte, T.; Nolin, M.)
Abstract	This paper presents algorithms that (1) facilitate system-independent synthesis of timing-interfaces for subsystems and (2) system-level selection of interfaces to minimize CPU load. The results presented are developed for hierarchical fixed-priority scheduling of subsystems that may share logical recourses (i.e. semaphores). We show that the use of shared resources results in a tradeoff problem, where resource locking times can be traded for CPU allocation, complicating the problem of finding the optimal interface configuration subject to schedulability. This paper presents a methodology where such a tradeoff can be effectively explored. It first synthesizes a bounded set of interface-candidates for each subsystem, independently of the final system, such that the set contains the interface that minimizes system load for any given system. Then, integrating subsystems into a system, it finds the optimal selection of interfaces. Our algorithms have linear complexity to the number of tasks involved. Thus, our approach is also suitable for adaptable and reconfigurable systems.
Starting Page	209
Ending Page	220
File Size	359213
Page Count	12
File Format	PDF
ISBN	9780769534770
ISSN	10528725
DOI	10.1109/RTSS.2008.34
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resource management Real time systems Processor scheduling Computer science Scheduling algorithm Vehicles Software systems Application software Fellows Access protocols synchronization real-time hierarchical scheduling
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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