利用批处理文件传输提高流媒体服务器资源利用率的方法

Method of Improving Resource Utilization of Streaming Media Servers by Batching File Transmission

设计了一种双模式流媒体服务器(DM-MS)，利用同一个服务平台，为用户提供在线播放和文件传输+离线播放两种服务模式。在线播放模式为每个用户请求提供独立的服务连接。文件传输+离线播放模式合并同一媒体文件的多个用户访问请求，通过一次传输为多个用户提供服务，提高服务的并发程度，降低服务的资源消耗。文章提出了DM-MS的框架模型，并为实时播放模式和文件传输+离线播放模式设计不同的资源调度算法。

This paper designs a double-mode media server. It divides the service mode into online playback and file transmission + offline playback. For file transmission mode, it merges several requests accessing the same media file into one task, and transmits the media file to those clients by multicast, that will improve the service concurrency and decrease the resource consumption. It also presents the infrastructure for DM-MS, and designs different scheduling algorithms for online and offline playback.