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Network I/O Latency in vSphere 5

Publisher:
VMware

Latest Revision:
Mar 2, 2012

Download:
http://www.vmware.com/files/pdf/techpaper/network-io-latency-perf-vsphere5.pdf

Description

This paper, by characterizing the latency overhead of vSphere under various scenarios, proves that vSphere can readily handle applications that are sensitive to network I/O latency with very little performance overhead. Scenarios explored in this paper model real-world performance issues, including CPU contention and network bandwidth contention. Our results show that in most cases, vSphere latency overhead is only a few tens of microseconds and rises to only a few hundreds of microseconds in heavily over-committed cases. This paper also presents guidelines for running latency-sensitive applications on vSphere 5.


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