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Summary: On the Performance of Content Distribution Networks
Dakshi Agrawal, James Giles, and Dinesh C. Verma
T. J. Watson Research Center
International Business Machines Corporation
30 Saw Mill River Road
Hawthorne, NY 10532
{agrawal, jamesgiles, dverma}@us.ibm.com
Keywords: Content Distribution Network, Performance
Analysis, User Response Time
ABSTRACT
This paper presents an analysis of the performance of
content distribution networks. The effectiveness of a
content distribution network depends on many factors,
including the type of hosted application, cache-hit rate,
average round-trip time between clients and servers, and
the architecture of the content distribution network. Us-
ing a linear model for the client-perceived response time,
we describe the effect of some of these factors and pro-
vide guidelines for evaluation of content distribution net-
works. In particular, we show that to reduce response
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