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Low Overhead Dynamic QoS Optimization Under Variable Task Execution Times
Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory. Linköping University, The Institute of Technology.
Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory. Linköping University, The Institute of Technology.
Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory. Linköping University, The Institute of Technology.
2010 (English)In: 16th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2010), Macau SAR, P.R.C.: IEEE, 2010Conference paper, Published paper (Refereed)
Abstract [en]

Today's embedded systems are typically exposed to varying load, due to e.g. changing num- ber of tasks and variable task execution times. At the same time, many of the most frequent real-life applications are not characterized by hard real-time constraints and their design goal is not to satisfy certain hard deadlines in the worst case. Moreover, from the user's perspective, achieving a high level of processor utilization is also not a primary goal. What the user needs, is to exploit the available resources (in our case processor time) such that a high level of quality of service (QoS) is delivered. In this paper we propose efficient run-time approaches, able to distribute the processor bandwidth such that the global QoS pro- duced by a set of applications is maximized, in the context in which the processor demand from individual tasks is continuously varying. Extensive experiments demonstrate the efficiency of the proposed approaches.

Place, publisher, year, edition, pages
Macau SAR, P.R.C.: IEEE, 2010.
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-58076DOI: 10.1109/RTCSA.2010.11ISBN: 978-1-4244-8480-5 (print)OAI: oai:DiVA.org:liu-58076DiVA: diva2:331885
Conference
16th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2010)
Note

©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.: Sergiu Aurel Rafiliu, Petru Ion Eles and Zebo Peng, Low Overhead Dynamic QoS Optimization Under Variable Task Execution Times, 2010, 16th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2010).

Available from: 2010-07-27 Created: 2010-07-27 Last updated: 2017-02-14

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Rafiliu, Sergiu AurelEles, Petru IonPeng, Zebo

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