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Optimization of Proxy Caches Using Proxy Filters

Authors:
Fabian Weber
Marcel Daneck
Christoph Reich

Keywords: Proxy; Cache; Filter; Replacement-Algorithm; LRU; LRU-threshold; LRU-MIN; SIZE; Log2(SIZE); Hybrid; MIX; GreedyDual-Size

Abstract:
Web proxy caches are a widely used tool to reduce the network load by storing often needed web pages. Increasing amounts of data transferred require new intelligent caching strategies with smarter replacement algorithms to predict, which web documents will be requested most likely in the future. However, these algorithms are relatively complex and require a lot of computing power. This paper describes an approach to design more intelligent and efficient web caches by adding a document filter that decides whether a document should be cached or whether it should be ignored in order to save disk space. The filter uses server connection information for its decision. The evaluation shows a reduction of required cache space of almost 90% compared to a traditional proxy cache.

Pages: 7 to 12

Copyright: Copyright (c) IARIA, 2012

Publication date: September 23, 2012

Published in: conference

ISSN: 2326-9383

ISBN: 978-1-61208-239-4

Location: Barcelona, Spain

Dates: from September 23, 2012 to September 28, 2012