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PVHVM Xen Is Smacking Xen PV's Performance

Virtualization

Published on 12 November 2013 10:55 AM EST
Written by Michael Larabel in Virtualization
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Debian with its current kernel now provides support for Xen PVHVM guests "out of the box" and this can mean an easy performance win over a classic Xen PV (para-virtualized) setup.

The folks behind the Xen Orchestra project have run some interesting benchmarks comparing a classic Xen PV configuration against Xen PVHVM (Hardware Assisted Virtualization with specialized drivers) on Debian Linux. With Debian 7, PVHVM is supported "out of the box" by its kernel.

The Xen Orchestra crew found PVHVM Debian Xen guests to be faster than Xen's classic para-virtualization and "you can get more performance for your current Xen infrastructure for a small cost." Those interested in seeing the full benchmarks can find the details on the Xen Orchestra blog. Their testing was driven in part by the Phoronix Test Suite so you can also find more of their Xen performance data on OpenBenchmarking.org. Their tests were in turn inspired by Rackspace benchmarks, which are also wanting a full run of the Phoronix Test Suite to show off to their customers.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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