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The Impact of Virtualization on Network Performance of Amazon EC2 Data Center

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2 Author(s)
Guohui Wang ; Dept. of Comput. Sci., Rice Univ., Houston, TX, USA ; Ng, T.S.E.

Cloud computing services allow users to lease computing resources from large scale data centers operated by service providers. Using cloud services, users can deploy a wide variety of applications dynamically and on-demand. Most cloud service providers use machine virtualization to provide flexible and cost-effective resource sharing. However, few studies have investigated the impact of machine virtualization in the cloud on networking performance. In this paper, we present a measurement study to characterize the impact of virtualization on the networking performance of the Amazon Elastic Cloud Computing (EC2) data center. We measure the processor sharing, packet delay, TCP/UDP throughput and packet loss among Amazon EC2 virtual machines. Our results show that even though the data center network is lightly utilized, virtualization can still cause significant throughput instability and abnormal delay variations. We discuss the implications of our findings on several classes of applications.

Published in:

INFOCOM, 2010 Proceedings IEEE

Date of Conference:

14-19 March 2010

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