VOD系统的性能分析

摘要

随着多媒体技术、通信技术以及硬件存储技术的发展，人们已不再满足以往单一、被动的信息获取方式，而是希望主动参与节目之中，视频点播（VideoOnDemand，VOD）是一种用户可控制的视频分配业务，本文分析了VOD系统的运行效率与命中率问题。%With the development of multimedia technologies, communication as well as hardware storage technology, the people are not only satisfied with the passive information, but also hope to participate in the program on one＇s own, the video on demand （Video On Demand, VOD） is the video distribution service which can be controlled by the users.The paper analyzies operating efficiency and hit probability question of VOD system.