| 面向流媒体业务的存储设备性能改进策略 |
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| 引用本文： | 李明哲,陈晓,张武.面向流媒体业务的存储设备性能改进策略[J].网络新媒体技术,2013(6):8-11,16. |
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| 作者姓名： | 李明哲 陈晓 张武 |
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| 作者单位： | [1]中国科学院研究生院,北京100190 [2]中国科学院声学研究所,国家网络新媒体工程技术研究中心,北京100190 |
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| 基金项目： | 863课题：融合网络业务体系的开发,项目编号：201101; 中国科学院战略先导性科技专项课题：未来网络架构研究与边缘设备研制,项目编号：XDA0601302 |
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| 摘 要： | 本文分析了RAID、I/O调度和预读等技术在提高流媒体存储系统性能方面的局限性。为突破这些传统策略的限制,本文针对存储设备的特点,挖掘磁盘设备的寻道延迟和旋转延迟的提升空间,提出了流的独立存储、潜伏缓存和排练等方法,从多个角度为进一步提升存储系统服务性能提出了新思路。理论分析和实测评估验证了新方法对系统性能的提升效果。
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| 关 键 词： | 存储 流媒体业务 性能 缓存 |
Methods To Improve Storage Performance For Streaming Media Services |
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| LI Mingzhe;CHEN Xiao;ZHANG Wu.Methods To Improve Storage Performance For Streaming Media Services[J].Microcomputer Applications,2013(6):8-11,16. |
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| Authors: | LI Mingzhe;CHEN Xiao;ZHANG Wu |
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| Affiliation: | LI Mingzhe;CHEN Xiao;ZHANG Wu;Graduate University of the Chinese Academy of Sciences;National Network New Media Engineering Research Center,Institute of Acoustics, Chinese Academy of Sciences; |
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| Abstract: | We analyze the limit of traditional methods to improve performance of streaming media storage systems,including RAID grouping,I / O scheduling and prefetching. To overcome the drawback and further reduce the disk seek and rotate time,we present ways to fully utilize the characteristic of storage devices. The new methods are respectively called independent streaming storage,laten- cy caching and rehearsal. Both theoretical and experimental evaluation are done to justify the proposed methods. |
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| Keywords: | Storage streaming media performance prefetching |
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