Response order rearrangement on a caching proxy for reducing WWW latency

Authors:
Hiroshi Fujimoto;Tadashi Nakano;Kaname Harumoto;Shojiro Nishio
Affiliations:
Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;Osaka University, 5-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan;Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Venue:
Proceedings of the 2002 ACM symposium on Applied computing
Year:
2002

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Abstract

Recently, the explosive growth of the WWW (World Wide Web) has been causing serious performance degradation on the Internet. One of the approaches of addressing this problem is the use of proxy caching, where a proxy cache is placed close to a set of clients and delivers web content to them faster than the origin server. On the other hand, the ability of HTTP/1.1 (Hypertext Transfer Protocol) has been enhanced by the introduction of pipelined requests, which allow a client to make multiple requests without waiting for each response. However, previous research on proxy caching has not fully investigated the impact of pipelined requests. In this paper, we propose 'HTTP-ROR (HTTP with Response Order Rearrangement)', a new approach toward reducing the user-perceived latency, and consider pipelined requests to caching proxies. We then show analytical performance evaluations and practical evaluations in several experimental environments.