Implementing assuring forward per hop behaviour class in web servers with dynamic scheduling and selective discards

Authors:
Tiago Semprebom;Romulo Silva De Oliveira;Carlos Montez
Affiliations:
Department of Automation and Systems Engineering, Federal University of Santa Catarina, P.O. Box 476, Florianopolis, Brazil.;Department of Automation and Systems Engineering, Federal University of Santa Catarina, P.O. Box 476, Florianopolis, Brazil.;Department of Automation and Systems Engineering, Federal University of Santa Catarina, P.O. Box 476, Florianopolis, Brazil
Venue:
International Journal of Communication Networks and Distributed Systems
Year:
2009

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Abstract

This paper proposes an approach for services differentiation in web servers that preserves the network end-to-end quality of service (QoS) mapping in conformance to per hop behaviour assuring forward group. This novel approach uses dynamic scheduling techniques and selective discard of requests to provide a proportional service differentiation to web clients. A prototype was built over the Apache web server and measurements were carried out aiming to evaluate the approach, contrasting it with other traditional techniques of services differentiation.