Hybrid prefetching for WWW proxy servers

Abstract

As the application of the World Wide Web grows, technologies for reducing Web latency are becoming important. Proxy caching is one of the most effective and widely implemented mechanisms. By prefetching documents on the proxy server, a better cache hit rate can be achieved and the clients experience a faster response time. In this thesis, we propose a hybrid prefetching technique, combined with different constraints, which could increase cache hit rate. Under this new prefetching scheme, the additional traffic is controllable. We also show that, when prefetching techniques are used in the proxy server, separated cache management is better if the whole cache size is small. All of the mechanisms are experimented by trace driven simulation.