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

• 论文 • 上一篇    下一篇

实时系统混合任务低功耗调度算法

张忆文1，2，郭锐锋1   

  1. 1.中国科学院 沈阳计算技术研究所，沈阳 110168；
    2.中国科学院大学，北京 100039
  • 收稿日期:2013-05-16 出版日期:2015-02-01 发布日期:2015-02-01
  • 作者简介:张忆文(1988)，男，博士研究生.研究方向:低功耗调度.E-mail:zywsy2010@126.com
  • 基金资助:
    核高基国家科技重大专项-国产软硬件在数控/工业控制装置中的应用与推广(2012ZX01029001-002).

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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摘要： 针对包括周期任务和非周期任务的混合任务集，利用动态电压调节(DVS)技术，提出一种混合任务低功耗调度算法。该算法包括两个阶段，第一阶段计算出离线状态的静态速度;第二阶段通过回收空闲时间调节任务的运行速度。仿真实验表明:本文算法比现有的混合任务低功耗调度算法节约27.35%的能耗。

关键词: 计算机系统结构, 混合任务, 动态电压调节, 功耗管理, 实时调度

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

中图分类号: 

  • TP316.2
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