Abstract
Power-aware scheduling reduces CPU energy consumption in hard real-time systems through dynamic voltage scaling(DVS). The basic idea of power-aware scheduling is to find slacks available to tasks and reduce CPU’s frequency or lower its voltage using the found slacks. In this paper, we introduce a novel power-aware scheduling algorithm which exploits all slacks under preemptive early-deadline first scheduling. The simulation results show that proposed algorithm with the algorithmic complexity of O(n) reduces the energy consumption by 10-70% over the existing algorithms.Keywordsreal-time schedulingpower-aware schedulingembedded systems
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