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Combining Static and Dynamic Scheduling for Real-Time Systems
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. Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory.
2004 (English)In: Workshop on Software Analysis and Development for Pervasive Systems SONDA 2004,2004, Southampton, UK: University of Southampton , 2004, 32- p.Conference paper, Published paper (Refereed)
Abstract [en]

We address in this paper the combination of static and dynamic scheduling into an approach called quasi-static scheduling, in the context of real-time systems composed of hard and soft tasks. For the particular problem discussed in this paper, a single static schedule is too pessimistic while a purely dynamic scheduling approach causes a very high on-line overhead. In the proposed quasi-static solution we compute at design-time a set of schedules, and leave for run-time only the selection of a particular schedule based on the actual execution times. We propose an exact algorithm as well as heuristics that tackle the time and memory complexity of the problem. The approach is evaluated through synthetic examples.

Place, publisher, year, edition, pages
Southampton, UK: University of Southampton , 2004. 32- p.
Keyword [en]
quasi-static scheduling, embedded systems, dynamic scheduling, static scheduling
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-23202Local ID: 2613OAI: oai:DiVA.org:liu-23202DiVA: diva2:243516
Available from: 2009-10-07 Created: 2009-10-07

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http://www.ida.liu.se/labs/eslab/publications/pap/db/SONDA04.pdf

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Cortes, Luis-AlejandroEles, Petru IonPeng, Zebo

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