基于RTLinux的多通道实时网络系统设计  

Design of Multiple Channels for Real Time Network System Based on RTLinux

作　　者：周长义[1] 杜旭[1] 徐侃如[1] 

机构地区：[1]华中科技大学电信系,武汉430074

出　　处：《计算机工程》2006年第13期120-122,共3页Computer Engineering

摘　　要：主要借鉴Linux/RK的资源调度思想,为嵌入式实时Linux提出了一种网络实时方案。主要对现有的RTLinux进行改造,突出网络实时的应用。通过改造Linux的网络子系统,得到一个微型网络子系统,移植到RTlinux微内核中。为网络子系统设计多个处理通道,支持网络并发调度,这由多个针对不同应用的内核线程实现。解决了Linux系统中网络实时性能不高的问题。Using the theory of resource scheduler in Linux/RK for reference, this article brings forward a real-time network strategy on the basis of an embedded Linux system. It mostly makes modification in the existing RTLinux, paying special attention to the real-time requirements. This paper develops a mini network subsystem, and replants it in the mini RTLinux kernel. With specific kernel threads, it designs multiple channels for the network subsystem, which supports the concurrent schedule. As a result, the real time performance refering to network is improved.

关 键 词：实时系统 RTLINUX 网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]