实时多任务系统优先级分配策略研究  

Priorty-based allocation strategy of real-time multitasking system

作　　者：李平[1] 贺浩 LI Ping;HE Hao(Beijing Electro-Mechanical Engineering Institute,Beijing 100074,China)

机构地区：[1]北京机电工程研究所,北京100074

出　　处：《工业仪表与自动化装置》2018年第1期20-24,共5页Industrial Instrumentation & Automation

摘　　要：实时多任务系统能够对外界输入作出预期的反应,取决于两个方面:一是系统计算形成的逻辑结果,二是结果产生的时间,即既要求逻辑结果正确,还要求在限定的时间内输出结果。对于典型的优先级静态分配、基于抢占式调度的实时多任务系统,复杂任务的优先级配置显得尤为重要,该文对此情况进行了分析讨论并提出了5条任务优先级设置原则,在以往的实时系统应用中取得了较好的效果。Real-time multitasking system can make the expected response to external input,depending on two aspects:one is the logical result of the system calculation,the second is the result of the time,that is,both the logical results are correct,but also within a limited time result.For the typical priority static allocation,based on the priority of the real-time multitasking system,complex tasks’s preemptive scheduling is very important,this article will discussed about it.

关 键 词：实时 多任务 优先级分配 

分 类 号：TP316.2[自动化与计算机技术—计算机软件与理论]