Wagner Meira Jr.,  Erik L S. Fonseca,  Virgílio A. F. Almeida,  Cristina D. Murta. 

Although caching and the creation of cache server hierarchies has became a popular strategy for reducing user waiting time and network traffic, there is no recipe for determining the best hierarchy configuration given a set of machines and the workload that they have to serve. This paper presents a novel approach for analyzing the performance of cache proxy hierarchies that is based on two metrics: hierarchical hit ratio and cache efficiency. This approach allows users to easily quantify trade-offs among configurations, facilitating the tuning of cache hierarchies. We illustrate our approach by analyzing possible configurations for a cache server hierarchy.

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65001998000300003&lng=e

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