Cost-Aware WWW Proxy Caching Algorithms
Pei Cao and Sandy Irani,
Computer Sciences Department,
University of Wisconsin-Madison & University of California at Irvine.
cao@cs.wisc.edu
The techreport version of the paper can be viewed in
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Abstract
Web caches can not only reduce network traffic and downloading latency, but can
also affect the distribution of web traffic over the network through
cost-aware caching.
This paper introduces GreedyDual-Size, which incorporates locality with
cost and size concerns in a simple and non-parameterized fashion for high
performance. Trace-driven simulations show that with appropriate cost
definition, GreedyDual-Size outperforms various existing web cache replacement
algorithms in many aspects, including hit ratios, latency reduction and
network cost reduction. In addition, GreedyDual-Size can potentially
improve the performance of main-memory caching of Web documents.