基于ARM9的嵌入式控制操作系统调度算法分析与改进的研究

Study on Analysis and Improvement in Task Schedule of Embedded Operation System Based on ARM9

目的:对嵌入式操作系统的调度算法进行分析和改进。方法:应用改进EMS调度算法和EDF调度算法。结果:系统资源利用率得到提高,并且可以充分发挥系统性能,提高系统处理任务的吞吐量,缩短任务全部完成所需时间。结论:用尽可能小的花销来满足尽可能大的需求,从使用上来说,就是降低了单位应用成本,这无疑也有着重要的经济意义。因此,可以说改进RMS算法和EDF算法在提升嵌入式操作系统性能方面,做到了有所兼顾,有些方面还做到了最优。

Objective：analysis and improvement task schedule algorithm for embedded operation system.Method：using the improved EMS scheduling algorithm and EDF scheduling algorithm.Result：the system resources utilization rate is high,and get questions can give full play to the performance of the system,and improve the system throughput,processing task shortening task to complete all the time.Conclusion：the cost of small as possible to meet the needs of as far as possible big,from the use of speaking,the unit is to reduce cost,this undoubtedly also application has important economic significance.Therefore,it can be said that improving the RMS algorithm and EDF algorithm embedded operating system performance in ascension,did it have all,some still do the best.