Implementando Diferenciação de Serviços em Servidores Web através de Escalonamento Adaptativo

Carlos Montez

In this paper we argue in favor of using the proportional diferentiation model in web QoS context, and we propose the cumulative value concept as a metric adopted in differentiation of services. With objective of maintaining the differentiation of services, we present an adaptive scheduling approach that implementsthe Proportional Cumulative Value Attribution (PCV) heuristic. That heuristic acts through two policies that, sorts the requests according to dinamically attributed priorities; and while at the same time, selects different versions of web pages to service the requests.

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