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Towards Preemption Control Using CPU Frequency Scaling in Sporadic Task Systems
Publication Type:
Conference/Workshop Paper
Venue:
The 6th IEEE International Symposium on Industrial Embedded Systems (WiP)
Abstract
Preemptions in real-time systems scheduling typically
lead to variations in task execution times, increase the
temporal overhead required for various RTOS related operations
and may even cause unschedulability.We examine the preemption
behavior of sporadic tasks scheduled under the Fixed Priority
Scheduling (FPS) policy, and evaluate the possibility of using
CPU frequency scaling for preemption control. We propose an
online heuristic-based algorithm, of linear complexity, to control
the number of preemptions in a sporadic task system using CPU
frequency scaling. Evaluation results show that CPU frequency
scaling is an attractive option to control the preemption behavior
of real-time sporadic task systems.
Bibtex
@inproceedings{Thekkilakattil2106,
author = {Abhilash Thekkilakattil and Radu Dobrin and Sasikumar Punnekkat},
title = {Towards Preemption Control Using CPU Frequency Scaling in Sporadic Task Systems},
month = {June},
year = {2011},
booktitle = {The 6th IEEE International Symposium on Industrial Embedded Systems (WiP)},
url = {http://www.es.mdu.se/publications/2106-}
}