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Slack-based Global Multiprocessor Scheduling of Aperiodic Tasks in Parallel Embedded Real-time Systems
Ansvarlig organisasjon
2008 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

We provide a constant time schedulability test and priority assignment algorithm for an on-line multiprocessor server handling aperiodic tasks. Dhall's effect is avoided by dividing tasks in two priority classes based on their utilization: heavy and light. The improvement in this paper is due to assigning priority of light tasks based on slack - not on deadlines. We prove that if the load on the multiprocessor stays below (3 - √5)/2 ≈ 38.197%, the server can accept an incoming aperiodic task and guarantee that the deadlines of all accepted tasks will be met. This is better than the current state-of-the-art algorithm where the priorities of light tasks are based on deadlines (the corresponding bound is in that case 35.425%). ©2008 IEEE.

sted, utgiver, år, opplag, sider
IEEE , 2008.
Emneord [en]
embedded systems, multiprocessing systems, processor scheduling
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-8350ISI: 000257099100066Lokal ID: oai:bth.se:forskinfo941FC5EB1BF6480BC125750400420D15ISBN: 978-1-4244-1967-8 (tryckt)OAI: oai:DiVA.org:bth-8350DiVA, id: diva2:836060
Konferanse
AICCSA 08 - 6th IEEE/ACS International Conference on Computer Systems and Applications
Tilgjengelig fra: 2012-09-18 Laget: 2008-11-17 Sist oppdatert: 2018-01-11bibliografisk kontrollert

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