Role of download time as a key in Web cache management policies

To ameliorate the problem of long download times experienced by World Wide Web users, as well as to reduce the ever-increasing bandwidth demand of WWW services, Web caches tend to be placed close to the users. The management policies of these caches are intimately related to the perceived quality of service (QoS). This paper investigates the relevance of download time as a key in Web cache management policies, as well as analyses QoS-oriented Web cache removal and admission control policies. The tradeoff between furnishing QoS and optimizing Web cache performance is studied.