Hybrid Cache Replacement Policyfor Proxy Server
As the World Wide Web (WWW) usage has grown exponentially in last two decades, so has grown the recognition that Webproxy caching and Web prefetching techniques play an important role in reducing server loads, client response latencies, network traffic and bottlenecks. The sophisticated combinations of these two techniques cause significant performance improvements of the Web infrastructure and Quality of Service. The heart of a caching system is its page replacement policy, which needs to make efficient replacement decision when its cache is full and a new document needs to be stored. Several replacement policies based on recency, frequency, size, cost of fetching object and access latency have been proposed for improving the performance of Web caching by many researchers.