面向运动控制的调度抖动问题的研究  

Research on the Problem of Scheduling Jitter Based on Motion Control

作　　者：郭锐锋[1] 钟利明[1] 吴凌子[1] 彭健钧[2] 

机构地区：[1]中国科学院沈阳计算技术研究所,辽宁沈阳110004 [2]大连轻工业学院,辽宁大连116034

出　　处：《小型微型计算机系统》2006年第7期1393-1396,共4页Journal of Chinese Computer Systems

基　　金：中科院知识创新工程重大项目(KCCX1-SW-20)资助.

摘　　要：通用处理器以其优异的性能已经越来越广泛地应用到实时控制系统中,但其所采用的体系结构会引起指令执行时间的不确定性,导致基于它的实时系统存在调度抖动问题.调度抖动是实时控制系统的重要性能指标之一,本文讨论了抖动测试和分析技术,并介绍了减少抖动的补偿技术.General-purpose microprocessors are increasingly being used for real-time control systems due to their excellent performance, but the uncertainty of instructions execution times introduced by their adopting architeeture causes the problem of scheduling jitter that exists in real-time systems based on them. Scheduling jitter is one of the most important performance criterions of real-time control systems. This paper discussed the techniques of jitter measurement and analysis, and presented the compensation techniques to reduce jitter.

关 键 词：抖动 调度抖动 抖动补偿 实时操作系统 实时系统 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]