实时系统中弹性调度策略  

Elastic scheduling in real-time systems

作　　者：杨志邦[1] 徐成[1] 周旭[2] 朱雪庆[1] 

机构地区：[1]湖南大学信息科学与工程学院,长沙410082 [2]嘉兴学院数理与信息工程学院,浙江嘉兴314001

出　　处：《计算机应用》2012年第2期573-577,共5页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60973030);湖南省科研条件创新专项(2010TT1002);嘉兴市科技计划项目(2011AY1003)

摘　　要：弹性调度面向负载可变的实时系统,通过动态调整任务属性以满足系统的灵活性要求,是一种高效的任务调度策略。针对弹性调度研究中的成果及问题,概述了弹性调度的研究背景,从任务模型、调度模型以及调度算法三个方面对弹性调度的国内外研究进展进行综述,探讨当前研究中存在的问题,并对弹性调度未来研究工作进行分析和展望。Elastic scheduling is designed for real-time systems with variable load. It adjusts the task attributes dynamically to meet the flexibility requirements of system, and it is an effective task scheduling strategy. Concerning the research results and problems of elastic scheduling, an overview of elastic scheduling was given out, and the research progress of the elastic periodic task model, scheduling model and the elastic scheduling algorithm were analyzed. The existing problems in research were investigated, and possible research areas in future were suggested.

关 键 词：实时系统 系统性能 弹性调度 任务模型 调度算法 

分 类 号：TP302.7[自动化与计算机技术—计算机系统结构]