摘要： 在以国产CPU龙芯2E为核心的PC104 Plus处理器模块上移植嵌入式实时操作系统μC/OS-II，对其实时性能进行评价。阐述处理器相关函数的编写及与PMON的整合等关键技术，讨论系统实时性能评价的一般方法，包括Rhealstone方法、进程分派延迟时间法和三维表示法等。在此基础上选择Rhealstone方法中的2个指标对整个系统的实时性能进行分析。实验结果表明，系统的实时性能可满足一般实时系统的需求。
关键词:
实时操作系统,
μC/OS-II系统,
龙芯
Abstract: The real-time operation system μC/OS-II is transplanted to Loongson 2E PC104 Plus CPU module. The process is described and three methods for real-time performance evaluation are discussed. Rhealstone benchmark method is chosen to measure and analyze real-time performance of the system. Experimental results show that μC/OS-II in Loongson 2E PC104 Plus CPU module can meet the requirement of general real-time applications.
Key words:
real-time operation system,
μC/OS-II system,
Loongson
中图分类号:
程晓宇;毕笃彦;蔡 晔. μC/OS在龙芯处理器上的移植及性能分析[J]. 计算机工程, 2009, 35(1): 213-215.
CHENG Xiao-yu; BI Du-yan; CAI Ye. Transplantation of μC/OS on Loongson Processor and Its Performance Analysis[J]. Computer Engineering, 2009, 35(1): 213-215.