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Online energy-efficient scheduling technique analysis for hard real-time mixed tasks

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  • Received:2007-07-25 Revised:1900-01-01 Online:2008-01-01 Published:2008-01-01
  • Contact: Dong-Song Zhang

硬实时混合任务在线节能调度技术分析

张冬松 金士尧 吴彤   

  1. 湖南省长沙市国防科学技术大学计算机学院; 国防科学技术大学并行与分布处理国家重点实验室 湖南省长沙市国防科学技术大学计算机学院 湖南省长沙市国防科学技术大学计算机学院
  • 通讯作者: 张冬松

Abstract: This paper analyzes energy-efficient scheduling techniques for mixed real-time tasks, deeply discusses an excellent online energy-efficient scheduling algorithm called On-Line Dynamic Voltage Scaling (OLDVS) in hard real-time systems, and shows the causes which result in the algorithm's shortcomings, i.e. slack time misses and slack time transfers. In order to improve its energy savings, the paper also presents various new means and makes a well exploration for future research.

Key words: real-time systems, mixed real-time tasks, energy-efficient scheduling, dynamic voltage scaling

摘要: 对混合实时任务节能调度技术进行了分析,深入探讨了目前优秀的硬实时系统在线节能调度算法(OLDVS),指出其存在不足的原因 ,即松弛时间丢失和松弛时间转移。为了提高其节能效果,给出了多种改进思路,为进一步研究工作做出有益的探索。

关键词: 实时系统, 混合实时任务, 节能调度, 动态电压调节