中文摘要：

文中的工作主要包括针对服务器虚拟化对TCP协议性能影响的测试，为云计算数据中心服务器虚拟化的部署提供参考与指导。虚拟化目的在于有效提高硬件资源的利用率，实施计算资源的隔离，避免不同用户或不同应用间计算资源的干扰，提升计算资源的可靠性与容错能力等。XEN是一种非常流行的虚拟化软件技术，现已被大量应用于数据中心服务器应用整合等领域。文中测试了基于XEN虚拟化平台上虚拟机TCP通信的性能，分析了XEN虚拟化技术对TCP性能的影响。在云计算数据中心越来越多采用虚拟化技术对其服务器进行管理的背景下，文中的研究表明云计算数据中心的虚拟化应避免盲目性。

英文摘要：

The work in this paper mainly includes the test of server virtualization for TCP performance effect, providing reference and guidance for the deployment of cloud computing data center server virtualization. Virtualization purpose is to improve the utilization rate of hardware resources,implement computing resources isolation, av old computing resources interference for different use~ or between dif- ferent application, improve the reliability of the computing resources and fault tolerant ability, etc. XEN is a popular software technology for virtualization which has been widely applied to fields like application integration of servers of data centers. It tests TCP communication capability of virtual machine based on XEN virtualized plaffolm and analyzes the influence of XEN virtualization technology on TCP per- formance. In the background of cloud computing data center more and more using virtualization technology on the server management, the studies show that cloud computing data center virtualization ,should avoid 191indness.