Performance Analysis of WWW Cache Proxy Hierarchies

• Autor(a) principal: Meira Jr.,Wagner
• Data de Publicação: 1998
• Outros Autores: Fonseca,Erik L S., Almeida,Virgílio A. F., Murta,Cristina D.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of the Brazilian Computer Society
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65001998000300003
• topic: Internet; WWW; Caching; Performance analysis

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.