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Received:April 28, 2014 Revised:May 19, 2014
Received:April 28, 2014 Revised:May 19, 2014
中文摘要: 使用WCET(Worst-case execution time)分析工具Bound-T, 分析典型实时操作系统(RTMES和uClinux)的关键模块代码, 在系统运行在硬件上之前分析其机器码, 给出整体系统的最坏执行时间.在系统的WCET达到要求之后, 再通过实验使用benchmark, 评测操作系统的典型实时性能指标, 给出两个嵌入式实时操作系统的实时性能对比, 并分析RTEMS(Real Time Executive for Multiprocessor Systems)的优势所在.
Abstract:In this paper, we use WCET(Worst-case execution time) tool, Bound-T, to analyze the key modules of typical real-time operating system (RTEMS and uClinux) affecting real-time performance. The WCET tool analyzes machine code to give the whole system's WCET before it runs on hardware. When WCET reaches our requirements, we evaluate the system real-time performance through benchmark. We compare the performance of two real-time operating systems and explain the advantages of RTEMS (Real Time Executive for Multiprocessor Systems).
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张文君,陈香兰,李曦.嵌入式实时操作系统的分析评测方法.计算机系统应用,2015,24(1):28-34
ZHANG Wen-Jun,CHEN Xiang-Lan,LI Xi.Analysis and Evaluation of Embedded Real-Time Operating System Methods.COMPUTER SYSTEMS APPLICATIONS,2015,24(1):28-34
张文君,陈香兰,李曦.嵌入式实时操作系统的分析评测方法.计算机系统应用,2015,24(1):28-34
ZHANG Wen-Jun,CHEN Xiang-Lan,LI Xi.Analysis and Evaluation of Embedded Real-Time Operating System Methods.COMPUTER SYSTEMS APPLICATIONS,2015,24(1):28-34
