Re: [Xen-devel] Phoronix Xen vs KVM vs Virtualbox benchmark with Ubuntu 11.10

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Nov 01, 2011 at 05:19:07AM -0700, Boris Derzhavets wrote:
> Pasi,
> 
> Have you asked yourself a question why Fedora and Ubuntu always patch and
> package
> Qemu-kvm-0.15(14)(13)(..).1.tar.gz , but not  Qemu-0.15(14)(13)(..).1.tar.gz ?
> Just install a couple of src.rpms to take a look - what's inside.
> 

I assume that's because full kvm support hasn't be merged to upstream qemu
so they need to ship separate qemu-kvm package.

-- Pasi

> 
> --- On Tue, 11/1/11, Mark Dokter <dokter@xxxxxxxxxxxxx> wrote:
> 
>   From: Mark Dokter <dokter@xxxxxxxxxxxxx>
>   Subject: Re: [Xen-devel] Phoronix Xen vs KVM vs Virtualbox benchmark with
>   Ubuntu 11.10
>   To: xen-devel@xxxxxxxxxxxxxxxxxxx
>   Date: Tuesday, November 1, 2011, 7:31 AM
> 
>   On 10/31/2011 10:40 PM, Pasi Kärkkäinen wrote:
>   > Hello,
>   >
> 
>   Hi!
> 
>   >
>   
> [1]http://www.phoronix.com/scan.php?page=article&item=ubuntu_1110_xenkvm&num=1
>   >
>   > Ubuntu 11.10 with Xen 4.1.1 and Linux 3.0.
>   >
> 
>   I've read the article and was surprised.
> 
>   > Xen seems to be doing very poorly on that benchmark.
>   > If someone has time to repeat that benchmark it would be good..
>   >
>   > Comparing the results to those from Stefano from XenSummit 2011 NA there 
> has
>   be something wrong..
>   > the results at XenSummit were pretty much the opposite compared to those 
> by
>   Phoronix.
>   >
> 
>   In that test, the KVM machine uses virtio disk and nic devices, while
>   the Xen machine uses the qemu emulated devices. Could that be the cause
>   for the poor performance?
> 
>   > -- Pasi
> 
>   Mark
> 
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> References
> 
>    Visible links
>    1. 
> http://www.phoronix.com/scan.php?page=article&item=ubuntu_1110_xenkvm&num=1
>    2. file:///mc/compose?to=Xen-devel@xxxxxxxxxxxxxxxxxxx
>    3. http://lists.xensource.com/xen-devel

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