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Online Intra-Task Device Scheduling for Hard Real-Time Systems
Ref: HURRAY-TR-120602       Publication Date: 20 to 22, Jun, 2012

Online Intra-Task Device Scheduling for Hard Real-Time Systems

Ref: HURRAY-TR-120602       Publication Date: 20 to 22, Jun, 2012

Abstract:
A large part of power dissipation in a system is generated by I/O devices. Increasingly these devices provide power saving mechanisms, inter alia to enhance battery life. While I/O device scheduling has been studied in the past for real-time systems, the use of energy resources by these scheduling algorithms may be improved. These approaches are crafted considering a very large overhead of device transitions. Technology enhancements have allowed the hardware vendors to reduce the device transition overhead and energy consumption. We propose an intra-task device scheduling algorithm for real time systems that allows to shut-down devices while ensuring system schedulability. Our results show an energy gain of up to 90% when compared to the techniques proposed in the state-of-the-art.

Authors:
Muhammad Ali Awan
,
Stefan M. Petters


7th IEEE International Symposium on Industrial Embedded Systems (SIES 2012), IEEE, pp 48-56.
Karlsruhe, Germany.

DOI:10.1109/SIES.2012.6356569.



Record Date: 5, Jun, 2012