Achievement of Proxy Cache System for Streaming Media Based on Patch Algorithm

In this paper we use prefix cache and patching algorithm which are administration way for cache. The system of proxy cache for streaming media is achieved, which is referred to operation principle of streaming media service and used RTSP protocol. In addition, it considers bytes benefit of stream media file and the size of file block, so it is more reasonable when move data block out of cache. It not only avoids the problem of the stream media file being continuously replaced, but also has better performance in enhancing cache hit rate, byte hit rate and space use. Experimental results show that the system can improve byte hit rate and significantly reduce the consumption of aggregate bandwidth.