[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] iozone on HVM guest
On Wed, Dec 05, 2007 at 09:48:52AM +0200, Ofek Doron [Ofek BIZ] wrote: > Hi all, > > > I am looking for information / results of iozone in a linux HVM based > guest. > I tried google but didn't find . > Does anyone have a link (or file) to such kind of information ? > > also, looking for objective information about I/O performance in a > paravirtual guest vs. HVM based guest. > Some results with Oracle OLTP workload: http://www.redhatmagazine.com/2007/11/20/red-hat-enterprise-linux-51-utilizes-nested-paging-on-amd-barcelona-processor-to-improve-performance-of-virtualized-guests/ Some other workloads might and will be different. PV guest is 91% of the baremetal speed, and HVM guest _with_ PV drivers (important!) is 75% of the speed of baremetal. HVM guest performance without PV drivers will be sucky, so make sure you're using them. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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