By Topic

Towards preemption control using CPU frequency scaling in sporadic task systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Abhilash Thekkilakattil ; Mälardalen Real-Time Research Center, Mälardalen University, Sweden ; Radu Dobrin ; Sasikumar Punnekkat

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.

Published in:

2011 6th IEEE International Symposium on Industrial and Embedded Systems

Date of Conference:

15-17 June 2011