吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (1): 261-266.doi: 10.13229/j.cnki.jdxbgxb201501038

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Low-power scheduling algorithm for mixed task in real-time system

ZHANG Yi-wen1,2,GUO Rui-feng1   

  1. 1.Shenyang Institute of Computing Technology, Chinese Academy of Sciences, Shenyang 110168,China;
    2.University of Chinese Academy of Sciences, Beijing 100039,China
  • Received:2013-05-16 Online:2015-02-01 Published:2015-02-01

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Abstract: Dynamic Voltage Scaling (DVS) is an effective low-power technology. In this paper, a low-power scheduling algorithm is proposed for mixed task in real-time system. In this algorithm the mixed task set with both periodic tasks and aperiodic tasks is considered using the DVS technology. The algorithm is composed of two phases: in the first phase the static speed is computed off-line; in the second phase the running speed of the task is adjusted based on the slack time. Simulation results show that the proposed algorithm can reduce the average energy consumption by 27.35% over the existing mix task DVS algorithms.

Key words: computer system architecture, mix task, dynamic voltage scaling, power management, real-time schedule

CLC Number: 

  • TP316.2
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