中文摘要：

轻量级实时网络通信协议对于科学计算集群与视频服务集群至关重要．SS—RTUDP以UDP协议为基础，通过以下途径在集群系统得到实现：静态分配网络资源、用户空间到内核空间的数据零拷贝操作、添加实时平滑层以及使用伪中断技术消除网卡硬件中断开销．性能测试结果表明该协议不仅具有较UDP更小的通信延迟与更高的通信带宽，同时较大程度提高了集群系统的实时通信性能．

英文摘要：

The lightweight real-time network communication protocol is critical to cluster system of science computing and video servicing. SS-RTUDP is based on the traditional UDP protocol, and it is implemented for cluster system through the following aspects： pre-allocating network resources, eliminating data copies from user space to kernel space, adding real-time traffic smoothing layer and proposing faking interrupt technique to avoid NIC interrupt processing. The test results prove that this protocol can not only provide much lower latency and higher bandwidth communication than traditional UDP protocol, but also improve the real-time communication performance greatly for cluster system.