Abstract: This paper brings forward basic real-time factors of system evaluation based on the basic principle and operating mechanism of real-time operating system, and analyzes the affection of these factors on system performance. By the method of software stub, it does the factor testing between different systems, also gives a contrastive evaluation result of system real-time performance based on testing data.

Key words: real-time operating system, real-time factor, software stub

摘要： 针对实时操作系统的基本原理和运行机制，提出评估系统实时性能的基本参考指标，并分析各项指标对系统实时性能的影响。采用软件插桩的方法测试不同实时操作系统的性能指标，根据测试结果对系统实时性能进行综合对比评估。

关键词: 实时操作系统, 实时性能指标, 软件插桩

CLC Number: 

• TP316