Abstract / Excerpt:

The growth of the World Wide Web has emphasized the need for improved Web latency. Primarily two techniques, caching and prefetching are being used for improving Web latency. Caching is a mechanism used to increase download speeds by keeping frequently accessed information in a location close to the requester. But several studies show that the maximum hit ratio achievable by any caching algorithm is only 30% - 50%. Therefore, another effort preferred on further increasing the hit ratio is prefetching. Prefetching predicts future documents before clients request for them. The only drawback with prefetching is that it inherently impose heavy network traffic.

In this paper, the proponents developed a hybrid prefetching approach for improvement of Web latency and network traffic. It combined the strengths of the two existing prefetching on the web namely: Interactive Prefetching and Prefetching Using Association Rules. Trace driven simulation based on access logs from both the un-enhanced proxy server (caching only) and the enhanced proxy server (with prefetching) were used to evaluate the new prefetching scheme. Performance results suggested that the hybrid prefetching approach improved Web performance by reducing access latency without increasing network traffic significantly.

Info

Source Institution	Ateneo de Davao University
Unit	Computer Studies
Authors	Doliente, Bernil Ed G., Mendoza, Francis Lou P., Tolentino, Jasmine P.
Page Count	8
Place of Publication	Davao City
Original Publication Date	March 1, 2002
Tags	Hybrid Prefetching, Network Traffic, Web Latency

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