An Improved Global EDF Schedulability Test for Uniform Multiprocessors

Authors:
Sanjoy Baruah
Affiliations:
-
Venue:
RTAS '10 Proceedings of the 2010 16th IEEE Real-Time and Embedded Technology and Applications Symposium
Year:
2010

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What to make of multicore processors for reliable real-time systems?

Ada-Europe'10 Proceedings of the 15th Ada-Europe international conference on Reliable Software Technologies

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Abstract

The global EDF scheduling of sporadic task systems upon uniform multiprocessor platforms is studied. A new sufficient schedulability test is presented and proved correct.Some interesting issues are discussed, that arise regarding the choice of an appropriate metric for evaluating the test quantitatively.Metrics based on processor speedup factor are proposed, and the test is quantitatively evaluated in terms of these metrics.