Dynamic priority real-time scheduling on power asymmetric multicore processors

Basharat Mahmood and Naveed Ahmad and Majid Iqbal Khan and Adnan Akhunzada (2021) Dynamic priority real-time scheduling on power asymmetric multicore processors. Symmetry, 13 (1488). pp. 1-26. ISSN 2073-8994

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URL: https://www.mdpi.com/2073-8994/13/8/1488/htm

Abstract

The use of real-time systems is growing at an increasing rate. This raises the power efficiency as the main challenge for system designers. Power asymmetric multicore processors provide a power-efficient platform for building complex real-time systems. The utilization of this efficient platform can be further enhanced by adopting proficient scheduling policies. Unfortunately, the research on real-time scheduling of power asymmetric multicore processors is in its infancy. In this research, we have addressed this problem and added new results. We have proposed a dynamic-priority semi-partitioned algorithm named: Earliest-Deadline First with C=D Task Splitting (EDFwC=D-TS) for scheduling real-time applications on power asymmetric multicore processors. EDFwC=D-TS outclasses its counterparts in terms of system utilization. The simulation results show that EDFwC=D-TS schedules up to 67% more tasks with heavy workloads. Furthermore, it improves the processor utilization up to 11% and on average uses 14% less cores to schedule the given workload.

Item Type:	Article
Keyword:	Real-time scheduling , EDF scheduling , Semi-partitioned scheduling , Power asymmetric multicore processors
Subjects:	Q Science > QA Mathematics > QA1-939 Mathematics > QA71-90 Instruments and machines
Department:	FACULTY > Faculty of Computing and Informatics
Depositing User:	SAFRUDIN BIN DARUN -
Date Deposited:	12 Jul 2022 09:21
Last Modified:	12 Jul 2022 09:21
URI:	https://eprints.ums.edu.my/id/eprint/33106

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