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首页> 外文会议>International IFIP-TC6 Networking Conference(NETWORKING 2004); 20040509-20040514; Athens; GR >Impact of Frequency-Based Cache Management Policies on the Performance of Segment Based Video Caching Proxies
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Impact of Frequency-Based Cache Management Policies on the Performance of Segment Based Video Caching Proxies

机译：基于频率的缓存管理策略对基于分段的视频缓存代理的性能的影响

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摘要

This paper examines a novel cache management policy, which we call LRLFU and is applied to groups of blocks of the media files. This cache management policy is capable of capturing the changing popularities of the various videos by attaching a caching value to every video according to how recently and how frequently the video was requested, and decides to cache the most 'valuable' videos. Our event-driven simulations have shown that the frequency considerations we have introduced in the caching values attached to the videos (ⅰ) improve the byte-hit ratio and (ⅱ) significantly reduce the fraction of user requests with delayed starts.
机译：本文研究了一种新颖的缓存管理策略，我们将其称为LRLFU，并将其应用于媒体文件块组。该缓存管理策略能够根据请求视频的时间和频率，将缓存值附加到每个视频上，从而捕获各种视频的流行变化，并决定缓存最“有价值”的视频。我们的事件驱动模拟表明，我们在视频附加的缓存值中引入的频率注意事项（ⅰ）提高了字节命中率，（ⅱ）大大减少了延迟启动的用户请求的比例。

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