An Evaluation of Connection Caching on the World Wide Web(Special Issue on Parallel Processing)

概要

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This paper proposes and evaluates connection caching to reduce the overhead of accessing pages on the World Wide Web (WWW). Connection caching means that a WWW server or a WWW proxy does not release its connection with a client or a peer but retains it, and uses it again. The retained connection is cached and it is used for future access. Connection caching reduces network traffic, server load and access latency. Connection caching in this study allows multiple connections to be established for the same host in order not to increase access latency, and it is global caching which does not distinguish requesting hosts. This paper shows that the hit rate of connection caching for WWW accesses is high and connection caching is effective on the WWW. For example, the caching of 16 connections gives hit rates of more than 81% at both a proxy and a server. This evaluation is based on actual logs from a server and a proxy at a university. The logs are records of 350 days. The log from the proxy includes more than 14 million accesses. Our analysis also shows that more than 29% of requests from clients to the proxy share cached connections to servers in the global 16-connection cache. Global connection caching is effective at the proxy.
一般社団法人情報処理学会の論文
1998-06-15