基于RDMA的RapidIO用户态通信接口实现  

RapidIO User-level Communication Interface Realization Based on RDMA

作　　者：冀映辉[1,2] 张建东[1] 蔡炜[1,2] 蔡惠智[1,2] 

机构地区：[1]中国科学院声学研究所,北京100190 [2]中国科学院研究生院物理科学学院,北京100191

出　　处：《计算机科学》2010年第6期293-296,共4页Computer Science

摘　　要：作为一款高性能的嵌入式互联协议,RapidIO支持RDMA操作以获得高性能。目前,针对RapidIO通信接口只有以太网模拟器,这种实现机制限制了RapidIO通信性能的发挥。参考国内外基于RDMA的通信协议实现方法,并结合RapidIO互联协议的特点,提出了一套基于RDMA技术的RapidIO用户态通信接口实现方法。在此基础上,验证了通信接口的性能并对实现方案进行了多种优化。经比较,实现的RapidIO通信接口数据吞吐量是目前所有已知的RapidIO通信接口中最高的。As a high performance interconnect protocol in embedded system,RapidIO promises a better performance by taking advantage of Remote Direct Memory Access operations. At present, the only accessible RapidIO communication interface is Ethernet simulator,which limits the communication performance of RapidIO. In accordance with the characte-ristics of RapidIO protocols, this paper put forward a RapidIO user-level communication interface based on RDMA by making reference to the various methods of communication protocols based on RDMA at home and broad. After that, the author validated the performance of this communication interface, and made its implementation to achieve optimiza- tion through various ways. By comparison, this RapidIO user-level communication interface is known to gain the highest throughput in all the present RapidIO communication interface.

关 键 词：RAPIDIO 远程直接内存存取 用户态通信接口 并行信号处理系统 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]