Study of combined effects of zero copy and pre-processing on Input/Output performance of multimedia on demand streaming server

2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011) Pub Date : 2011-02-17 DOI:10.1109/COMSNETS.2011.5716477

V. Singh, Suhas Hegde Ankadi, D. Das

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引用次数: 3

Abstract

The growing broadband internet connectivity has made services like Media on Demand (MoD) and News on Demand (NoD) a huge business. Media servers play an important role and critical part of providing real time MoD services. The major challenges are the handling of multimedia files and their real time streaming, which require fast processing as well as transmission of multimedia by the server. One of the important features of media server design is Input/Output (I/O) performance of multimedia files to network. This performance also affects the overall delay in case of end-to-end QoS. In this paper, we have proposed an idea to improve the I/O performance by enhancing zero copy methodology with pre-processed multimedia. Our proposed idea's implementation results present five times reduction of total transmission and processing time delay in comparison to without zero copying and pre-processing in media server. Moreover, there is a 15% reduction in CPU usage of the multimedia server.

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零拷贝和预处理对多媒体点播流服务器输入/输出性能的综合影响研究

不断增长的宽带互联网连接使得媒体点播(MoD)和新闻点播(NoD)等服务成为一项巨大的业务。媒体服务器在提供实时MoD服务中扮演着重要的角色和关键部分。主要的挑战是多媒体文件及其实时流的处理，这需要服务器快速处理和传输多媒体。多媒体服务器设计的一个重要特征是多媒体文件对网络的输入/输出(I/O)性能。在端到端QoS的情况下，这种性能也会影响总体延迟。在本文中，我们提出了一种通过预处理多媒体增强零拷贝方法来提高I/O性能的想法。我们提出的想法的实现结果表明，与媒体服务器中没有任何复制和预处理相比，总传输和处理时间延迟减少了五倍。此外，多媒体服务器的CPU使用率降低了15%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 Third International Conference on Communication Systems and Networks (COMSNETS 2011)

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