[CentOS-virt] performance differences between kvm/xen
grantmasterflash at gmail.com
Sun Oct 17 13:44:59 EDT 2010
On Sat, Oct 16, 2010 at 12:58 PM, Dennis Jacobfeuerborn <
dennisml at conversis.de> wrote:
> On 10/16/2010 08:11 PM, Pasi Kärkkäinen wrote:
> > On Thu, Oct 14, 2010 at 02:16:42PM +0100, Bart Swedrowski wrote:
> >> Hi Karanbir,
> >> On 14 October 2010 19:59, Karanbir Singh<mail-lists at karan.org> wrote:
> >>> On 10/14/2010 07:48 AM, Tom Bishop wrote:
> >>>> I think xen is still on top in terms of performance and
> >>> that is indeed what it 'feels' like, but I'm quite keen on putting some
> >>> numbers on that.
> >> I have done some testing some time ago on one of the EQ machines that
> >> I got from hetzner.de. Full spec of the machine was as following:
> > Note that 64bit Xen guests should be HVM, not PV, for best performance.
> > Xen HVM guests obviously still need to have PV-on-HVM drivers installed.
> > 32bit Xen guests can be PV.
> Hm, why would HVM be faster than PV for 64 bit guests?
lol, there's seems to be a lot of hearsay surrounding performance and Xen.
Some people, when confronted with a problem, think "I know, I'll use
Now they have two problems.
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