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신뢰도를 요구하는 임베디드 시스템에서의 저전력 태스크 스케쥴링

Power-aware Real-time Task Scheduling in Dependable Embedded Systems

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Abstract

In this paper, we provide an adaptive power-aware checkpointing scheme for fixed priority-based DVS scheduling in dependable real-time systems. In the provided scheme, we analyze the minimum number of tolerable faults of a task and the optimal checkpointing interval in order to meet the deadline and guarantee its specified reliability. The energy-efficient voltage level at a fault arrival is also analyzed and used in the recovery of the faulty task.

참고문헌 (7)

  1. Y. Lee, "Voltage-clock scaling for low energy consumption in real-time embedded systems", Proc. of the 6th Intl. Conf. on Real-Time Computing Systems and applications, pp.272~279 (1999)
  2. P. Pillai, "Real-time dynamic voltage scaling for low-power embedded operating systems", Proc. of 18th ACM Symp. on Operating System Principles, pp.89~102 (2000)
  3. R. Melhem, "The interplay of power management and fault recovery in real-time systems", IEEE Trans. on Computers, 53(2), pp.217~231 (2004)
  4. Y. Zhang, "A unified approach for fault tolerance and dynamic power management in fixed-priority real-time embedded systems", IEEE Trans. on Computer-Aided Design of Integrated Circuits and Systems, 25(1), pp.111~125 (2006)
  5. D. Zhu, "Reliability-aware dynamic energy management in dependable embedded real-time systems", Proc. of 21th IEEE Real-Time and Embedded Technologies and Applications Symposium (2006)
  6. K.H. Kim, "An adaptive DVS checkpointing scheme for fixed-priority tasks with reliability constraints in dependable real-time embedded systems", Proc. of Intl Conf. on Embedded Software and System (ICESS-07) (2007)
  7. Y. Zhang, "Energy-aware adaptive checkpointing in embedded real-time systems", In Proc. of IEEE, 2003, ~

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