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Performance comparison of dynamic voltage scaling algorithms for hard real-time systems

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5 Author(s)
Woonseok Kim ; Sch. of Comput. Sci. & Eng., Seoul Nat. Univ., South Korea ; Dongkun Shin ; Han-Saem Yun ; Jihong Kim
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Dynamic voltage scaling (DVS) is an effective low-power design technique for embedded real-time systems. In recent years, many DVS algorithms have been proposed for reducing the energy consumption of embedded hard real-time systems. However, the proposed DVS algorithms were not quantitatively evaluated under a unified framework, making it a difficult task to select an appropriate DVS algorithm for a given application/system. In this paper, we compare several key DVS algorithms recently proposed for hard real-time periodic task sets, analyze their energy efficiency, and discuss the performance differences quantitatively. Our evaluation results give quantitative answers to several important DVS questions.

Published in:

Real-Time and Embedded Technology and Applications Symposium, 2002. Proceedings. Eighth IEEE

Date of Conference:

2002