[Gllug] kvm and slow X performance

[Paul Hewlett]

On 25 November 2011 17:35, James Courtier-Dutton <james.dutton at gmail.com>wrote:

> Hi,
>
> I want to have a PC for a Desktop, but the Desktop display being that
> of a virtual machine in kvm.
> I tried it, but the speed of the Desktop display was too slow for videos
> etc.
> I want to do it this way so that I can use the dom0 so that I can ssh
> into it, and reboot the VM.
> Has anyone worked out how to get the video display to perform quickly in a
> VM?
>
> Kind Regards
>
> James
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Hi James

The only way to improve guest video performance in kvm is to use SPICE and
the QXL video drivers.

I have just got this working on Ubuntu 11.10 with a W7 guest.

I can't say whether it has improved performance - the W7 performance
assessment still rates graphics with a score of 1.0 however
it certainly seems quicker. Windows Media Player plays movies with very
little pixellation or stutter but that is subjective.

This link details the procedure
http://bderzhavets.wordpress.com/2011/08/07/set-up-spice-gtk-0-7-on-ubuntu-11-10/

I believe that installation of SPICE on Fedora is easier but have not tried
it myself.

Regards
Paul

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Tel: +44 79 8532 7353
LinkedIn: http://uk.linkedin.com/pub/paul-hewlett/0/629/9b4
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