确定中断和抢占延迟的嵌入式实时内核  

Real-time linux model

作　　者：侯军 张燕峰 

机构地区：[1]民航天航信网络公司,北京100085

出　　处：《微计算机信息》2007年第04Z期49-50,24,共3页Control & Automation

摘　　要：在这篇文章中实现了优先级继承协议和中断线程化,使用新的方法实现了中断处理。通过在MMU-less的ARM处理器平台上实现基于Linux 2.6.x的硬实时系统,并且也会比较经过改进后的实时性能的提高。试验结果显示了系统的中断响应时间和加锁时间为确定时间,提高了实时性能。　The Linux kernel has be becoming a more popular operationg system,but it＇s far from a real time system. So this paper will propose a new method to enhance the Linux real time performance. This paper will introduce a priority inheritence protocol to avoid priority inverse. And also give a new interrupt thread to reduce the interrupt response time. We can get a invariablenes lock time and interrupt handle time in the paper. In the end,the experiment shows the system has a prominent real time performance after modifications.

关 键 词：实时系统 中断线程化 优先级继承协议 

分 类 号：TP316.8[自动化与计算机技术—计算机软件与理论]