The interplay of power management and fault recovery in real-time systems

@article{Melhem2004TheIO,
  title={The interplay of power management and fault recovery in real-time systems},
  author={Rami G. Melhem and Daniel Moss{\'e} and E. N. Elnozahy},
  journal={IEEE Transactions on Computers},
  year={2004},
  volume={53},
  pages={217-231}
}
We describe how to exploit the scheduling slack in a real-time system to reduce energy consumption and achieve fault tolerance at the same time. During failure-free operation, a task takes checkpoints to enable recovery from failure. Additionally, the system exploits the slack to conserve energy by reducing the processor speed. If a task fails, it will restart from a saved checkpoint and execute at maximum speed to guarantee that the deadlines are met. We show that the number of checkpoints and… CONTINUE READING
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