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Issue No.11 - November (2002 vol.51)
pp: 1368-1375
ABSTRACT
<p><b>Abstract</b>—Differentiated service approach has been proposed as a potential solution to provide Quality of Services (QoS) in the next generation Internet. The ultimate goal of end-to-end service differentiation can be achieved by complementing the network-level QoS with the service differentiation at the Internet servers. In this paper, we have presented a detailed study of the performance of service differentiating web servers (SDIS). Various aspects, such as admission control, scheduling, and task assignment schemes for SDIS, have been evaluated through real workload traces. The impact of these aspects has been quantified in the simulation-based study. Under high system utilization, a service differentiating server provides significantly better services to high priority tasks compared to a traditional Internet server. A combination of selective early discard and priority-based task scheduling and assignment is required to provide efficient service differentiation at the servers. The results of these studies could be used as a foundation for further studies on service differentiating Internet servers.</p>
INDEX TERMS
Admission control, performance study, Quality of Service, scheduling, service differentiating Internet servers, task assignment.
CITATION
Xiangping Chen, Prasant Mohapatra, "Performance Evaluation of Service Differentiating Internet Servers", IEEE Transactions on Computers, vol.51, no. 11, pp. 1368-1375, November 2002, doi:10.1109/TC.2002.1047760
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