基于伪解码的拉模式流媒体服务性能测评

Performance Evaluation of the Pull Strategy Streaming Media Service Based on Pseudo Decoding

多格式媒体服务成为服务的重点,为测试系统性能,传统的方法是构建由数百台客户端组成的压力测试环境,使客户端对服务系统进行真实的用户点播来进行性能测试。由于传统的测试环境复杂和成本高,所以为了减少测试环境的复杂程度和降低成本,文中提出了一种基于“伪解码”的测试方法。该方法能够在客户端不进行解码而达到播放器真实解码的效果,降低播放窗口对客户端系统资源的占用。使每个播放窗口占用很少的系统资源,模拟真实的用户请求对服务器进行施压。这样能够大量提高单客户端模拟真实用户请求的数目。使用简单的测试环境达到真实测试的效果。该方法能够使用一台或几台客户端组成的测试环境来对服务系统进行性能测试。

With the rapid development of Internet, the stream media technology becomes an emphasis of service. Usually the performance of system is denoted by the number of requests per second when the user is satisfied. For evaluating the performance of full - format media service system, the traditional method is to construct large - scale pressurre evaluation circumstance made of hundreds clients. This paper brings forward a＂ pseudo decoding - based＂ performance evaluation method, to achieve the effect of large - scale pressure evaluation with a few clients . Experiments show that the syestem can simulate the same network behavior as the real clients. It is apparent that this method is efficient.