摘要
在机载嵌入式实时操作系统中,时间性能是一个非常重要的参数。为了评估机载嵌入式实时操作系统的实时性,同时为用户提供操作系统的时间性能参数,本文介绍了支持分区的机载嵌入式实时操作系统中特有的影响时间性能的关键因素———错误响应时间,分区间数据交换时间,进程上下文切换时间,分区上下文切换时间;给出了操作系统时间性能测试的方法,着重分析了计时工具,测试用例的设计,测试点的选取,以及排除影响测试准确行的因素。
Time performance is a very important parameter in airborne embedded real-time operating system. To evaluate the real.time performance of airborne embedded real-time operating system supporting partitions, this paper analyses the key factors affecting time performance of airborne embedded real-time operating system supporting partitions-error response time, inter-partition data exchange time, process switch time, and partition switch time, gives a method of design and implementation of time performance measurements, and the methods of how to select test points and to eliminate the interfere factors.
出处
《航空计算技术》
2006年第6期80-82,共3页
Aeronautical Computing Technique
基金
航空基金资助项目(04F31007)
关键词
机载嵌入式实时操作系统
时间性能
测试方法
airborne embedded real-time operating system
time performance measurement
measurement method
