【摘要】 时钟管理是体现系统实时性能的一个因素,其中最重要的是高精度的定时器的实现,通过对一个嵌入式实时操作系统(ARTs-OS)的研究,介绍了实现通常时钟管理的方法。在分析Linux定时器方法和ATR方法优劣的基础上,给出了ARTs-OS定时器实现算法及其函数原型,并且分析了这种算法的性能。这种算法可以在不影响系统吞吐率的同时提供高精度(微秒级)的定时器。更多还原

【Abstract】 Timing management is a factor which shows real-time performance, and the most important part of it is how to realizing high precision timer. Through the research of ARTs-OS, this paper proposes the general timing services. On the basis of comparing the timing technology of Linux and adjustable timer resolution, this paper discusses a realization algorithm of timer in ARTs-OS., and it also analyzes the performance of the method. The algorithm can provide high precision timer(microsecond level) without impacting system’s throughout.更多还原