InforLorV4, Main, Exploration, bibRecord, 004687

Scheduling optimisation under feasibility constraint

Identifieur interne : 004687 ( Main/Exploration ); précédent : 004686; suivant : 004688

Scheduling optimisation under feasibility constraint

Auteurs : Mathieu Grenier [France]

Source :

RBID : Hal:tel-00192466

Descripteurs français

mix :
- multi-tâches, ordonnancement, priorité dynamique, priorité fixe, round-robin, systèmes d'exploitation, temps réel.

English descriptors

mix :
- dynamic priority, fixed priority, multi-tasking, operating systems, real-time, scheduling.

Abstract

Our goal is to make feasible (i.e., all required time constraints are met) on-line real-time scheduling algorithms. These algorithms have to optimise 1) the utilisation of the execution platform (i.e., meet time constraints and use platform at its fullest potential) and/or 2) optimise the application dependent performance criteria.
We study two cases : the case of independent periodic tasks scheduled on a processor and the case of independent periodic traffic streams scheduled on a priority bus.

To deal with these two problems, we propose :
1) configuration methods to allow to optimise the utilisation rate of the execution platform by setting the parameters of the policies or of the activities of the considered system. We perform two studies : the allocation of offsets in "offset free" systems (i.e., offsets can be chosen off-line) and the priorities, policies and quantum allocations in systems compliant to the standard Posix~1003.1b,
2) a new scheduling policies class to allow to optimise application performance dependent criteria.

Url:

https://tel.archives-ouvertes.fr/tel-00192466

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 004391
to stream Hal, to step Curation: 004391
to stream Hal, to step Checkpoint: 003803
to stream Main, to step Merge: 004835
to stream Main, to step Curation: 004687

Le document en format XML

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<front><div type="abstract" xml:lang="en">Our goal is to make feasible (i.e., all required time constraints are met) on-line real-time scheduling algorithms. These algorithms have to optimise 1) the utilisation of the execution platform (i.e., meet time constraints and use platform at its fullest potential) and/or 2) optimise the application dependent performance criteria.
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To deal with these two problems, we propose :
1) configuration methods to allow to optimise the utilisation rate of the execution platform by setting the parameters of the policies or of the activities of the considered system. We perform two studies : the allocation of offsets in "offset free" systems (i.e., offsets can be chosen off-line) and the priorities, policies and quantum allocations in systems compliant to the standard Posix~1003.1b, 
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Scheduling optimisation under feasibility constraint

Scheduling optimisation under feasibility constraint

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri