Title: 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

Addresses: 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

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.

Keywords: web server QoS; quality of service; differentiated services; web servers; dynamic scheduling; service differentiation.

DOI: 10.1504/IJCNDS.2009.026878

International Journal of Communication Networks and Distributed Systems, 2009 Vol.3 No.3, pp.249 - 267

Published online: 27 Jun 2009 *

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