摘要： 为了使缓存总体效益最大化，基于字节命中率，利用0-1背包对代理缓存建立模型，给出流媒体缓存替换算法。实验结果表明，与传统流媒体缓存算法相比，该算法能减少占用带宽，提升缓存写入效率，具有较高的字节命中率。

关键词: 流媒体缓存, 字节命中率, 背包, 替换策略

Abstract: In order to make total benefit maximize for cache, based on byte hit ratio, this paper gives streaming media cache replacement algorithm by using 0-1 knapsack to set up a proxy cache model. Experimental result shows that this algorithm can reduce occupied bandwidth, enhance cache read-in efficiency, and it has a higher hit ratio.

Key words: streaming media cache, byte hit ratio, knapsack, replacement policy

中图分类号: 

• TP393