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。
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.
出处
《计算机工程》
CAS
CSCD
北大核心
2009年第1期213-215,共3页
Computer Engineering
