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Performance optimization for energy-aware adaptive checkpointing in embedded real-time systems

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3 Author(s)
Zhongwen Li ; Inf. Sci. & Technol. Coll., Xiamen Univ. ; Hong Chen ; Shui Yu

Using additional store-checkpoints (SCPs) and compare-checkpoints (CCPs), we present an adaptive checkpointing for double modular redundancy (DMR) in this paper. The proposed approach can dynamically adjust the checkpoint intervals. We also design methods to calculate the optimal numbers of checkpoints, which can minimize the average execution time of tasks. Further, the adaptive checkpointing is combined with the DVS (dynamic voltage scaling) scheme to achieve energy reduction. Simulation results show that, compared with the previous methods, the proposed approach significantly increases the likelihood of timely task completion and reduces energy consumption in the presence of faults

Published in:

Design, Automation and Test in Europe, 2006. DATE '06. Proceedings  (Volume:1 )

Date of Conference:

6-10 March 2006