NEW ALGORITHM FOR SCHEDULING PERIODIC, REAL-TIME TASKS.

Joseph Y T Leung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We consider the problem of preemptively scheduling a set of periodic, real-time tasks on a multiprocessor computer system. We give a new scheduling algorithm, and so-called Slack-Time Algorithm, and show that it is more effective than the known Deadline Algorithm. We also give an (exponential-time) algorithm to decide if a task system is schedulable by the Slack-Time or the Deadline Algorithm. The same algorithm can also be used to decide if a task system is schedulable by any given fixed-priority scheduling algorithm. This resolves an open question posed by Leung and Whitehead. Finally, it is shown that the problem of deciding if a task system is schedulable by the Slack-Time, the Deadline, or any given fixed-priority scheduling algorithm is NP-hard for each fixed m greater than equivalent to 1.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherPrinceton Univ
Pages172-177
Number of pages6
StatePublished - Dec 1 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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