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Energy-Efficient Optimal Real-Time Scheduling on Multiprocessors

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3 Author(s)
Kenji Funaoka ; Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama ; Shinpei Kato ; Nobuyuki Yamasaki

Optimal real-time scheduling is effective to not only schedulability improvement but also energy efficiency for real-time systems. In this paper, we propose real-time static voltage and frequency scaling (RT-SVFS) techniques based on an optimal real-time scheduling algorithm for multiprocessors. The techniques are theoretically optimal when the voltage and frequency can be controlled both uniformly and independently among processors. Simulation results show that the independent RT-SVFS technique closely approaches the lower bound on energy consumption if the voltage and frequency can be controlled minutely.

Published in:

2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)

Date of Conference:

5-7 May 2008