Performance Optimization of Checkpointing Schemes with Task Duplication
IEEE Transactions on Computers
Analysis of Checkpointing Schemes with Task Duplication
IEEE Transactions on Computers
Worst Case Timing Requirement of Real-Time Tasks with Time Redundancy
RTCSA '99 Proceedings of the Sixth International Conference on Real-Time Computing Systems and Applications
The Interplay of Power Management and Fault Recovery in Real-Time Systems
IEEE Transactions on Computers
Task Feasibility Analysis and Dynamic Voltage Scaling in Fault-Tolerant Real-Time Embedded Systems
Proceedings of the conference on Design, automation and test in Europe - Volume 2
Energy-Aware Adaptive Checkpointing in Embedded Real-Time Systems
DATE '03 Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Optimal checkpointing intervals of three error detection schemes by a double modular redundancy
Mathematical and Computer Modelling: An International Journal
ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
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Using additional store-checkpoinsts (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.