Assigning Priorities for Fixed Priority Preemption Threshold Scheduling
Author
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-25
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Preemption threshold scheduling (PTS) enhances real-time schedulability by controlling preemptiveness of tasks.
This benefit of PTS highly depends on a proper algorithm that assigns each task feasible scheduling attributes, which are priority and preemption threshold.
Due to the existence of an efficient optimal preemption threshold assignment algorithm that works with fully assigned priority orderings, we need an optimal priority assignment algorithm for PTS.
This paper analyzes the inefficiency or nonoptimality of the previously proposed optimal priority assignment algorithms for PTS.
We develop theorems for exhaustively but safely pruning infeasible priority orderings while assigning priorities to tasks for PTS.
Based on the developed theorems, we correct the previously proposed optimal priority assignment algorithm for PTS.
We also propose a performance improved optimal priority assignment algorithm for PTS proving its optimality.
The empirical evaluation results clearly show the effectiveness of the proposed algorithm.
American Psychological Association (APA)
Kim, Saehwa. 2015. Assigning Priorities for Fixed Priority Preemption Threshold Scheduling. The Scientific World Journal،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1079221
Modern Language Association (MLA)
Kim, Saehwa. Assigning Priorities for Fixed Priority Preemption Threshold Scheduling. The Scientific World Journal No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1079221
American Medical Association (AMA)
Kim, Saehwa. Assigning Priorities for Fixed Priority Preemption Threshold Scheduling. The Scientific World Journal. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1079221
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1079221