The Meaning and Role of Value in Scheduling Flexible Real-Time Systems

Report
Authors:Burns, A, Department of Computer ScienceUniversity of Virginia Prasad, D, Department of Computer ScienceUniversity of Virginia Bondavalli, A, Department of Computer ScienceUniversity of Virginia Di, Giandomenico, Department of Computer ScienceUniversity of Virginia Ramamritham, K, Department of Computer ScienceUniversity of Virginia Stankovic, Jack, Department of Computer ScienceUniversity of Virginia Strigini, L, Department of Computer ScienceUniversity of Virginia
Abstract:

The real - time community is devoting considerable attention to flexible scheduling and adaptive systems. One popular means of increasing the flexibility, and hence effectiveness, of real-time systems is to use Value - based scheduling. It is surprising however, how little attention has been devoted, in the scheduling field, to the actual assignment of value. This paper deals with value assignment and presents a framework for undertaking va1ue - based scheduling and advises on the different methods that are available. A distinction is made between ordinal and cardinal value functions. Appropriate techniques from utility theory are reviewed. An approach based on constant value modes is introduced and evaluated via a case example. ‘The work reported in this paper was undertaken as part of the AFERT Project (041) supported by a joint EU US funding arrangement
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Rights:
All rights reserved (no additional license for public reuse)
Language:
English
Source Citation:

Burns, A, D Prasad, A Bondavalli, Giandomenico Di, K Ramamritham, Jack Stankovic, and L Strigini. "The Meaning and Role of Value in Scheduling Flexible Real-Time Systems." University of Virginia Dept. of Computer Science Tech Report (1998).

Publisher:
University of Virginia, Department of Computer Science
Published Date:
1998