摘要： I/O 互联技术及体系结构正在发生重大变革，相继涌现了一系列新兴高性能I/O 互联技术，包括PCI Express、RapidIO、HyperTransport以及InfiniBand。该文对它们分别予以研究介绍，针对各自的体系结构、技术特性和应用领域，分别提出了一种合理的系统结构方案。并对这几种I/O 互联技术的主要技术特性进行了简要而全面的比较，分析了I/O 互联技术及体系结构的现状与发展趋势。

关键词: I/O 互联技术；I/O 体系结构；PCI Express；RapidIO；HyperTransport；InfiniBand；PCI-X；PCI

Abstract: Nowadays important innovation of I/O interconnection and architecture technology is ongoing. This paper researches several popular new high performance I/O interconnection technologies——PCI Express, RapidIO, HyperTransport and InfiniBand, discusses their architectures and technology characteristics, and develops reasonable system scheme for each I/O technology respectively based on their architecture and application. It also analyzes the development of I/O interconnection and architecture, and presents a brief comparison of the primary characteristics of these new I/O technologies.

Key words: I/O interconnection; I/O architecture; PCI Express; RapidIO; HyperTransport; InfiniBand; PCI-X; PCI