基于RTLinux的多通道实时网络系统设计

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。

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

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.