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Leakage-Aware Energy-Efficient Scheduling of Real-Time Tasks in Multiprocessor Systems

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3 Author(s)
Jian-Jia Chen ; National Taiwan University, Taiwan ; Heng-Ruey Hsu ; Tei-Wei Kuo

This work targets energy-efficient scheduling of periodic real-time tasks over multiple DVS processors with the considerations of power consumption due to leakage current. A polynomial-time algorithm with a 1.283 approximation bound is proposed when the overheads in turning on/off a processor are negligible. When the overheads are non-negligible, we develop polynomial-time algorithms with a 2 approximation bound. A series of simulation experiments was done for the performance evaluation of the proposed algorithms. The simulation results show that the proposed algorithms could derive schedules very close to optimal solutions.

Published in:

12th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS'06)

Date of Conference:

04-07 April 2006