[Spice-devel] Dreadful performance under Windows 10 Enterprise 2016 LTSB

[George Diamantopoulos]

So, I guess I'm stuck waiting for iGVT-g to go upstream then :-(.

On 19 January 2017 at 15:20, Christophe Fergeau <cfergeau at redhat.com> wrote:

> On Tue, Jan 10, 2017 at 10:06:33AM +0200, George Diamantopoulos wrote:
> > Hello all,
> >
> > I'm trying out qxl-dod in a new installation, and performance is so low
> > that the guest is practically unusable. Redrawing takes about 4-5
> seconds.
> > I have used qxl-dod in the past on the same hardware with much better
> > results, although the software stack is different this time. I tried
> > disabling all visual effects, but apart from the expected gains (fewer
> > frames to redraw after each action due to the animations' being disabled)
> > it didn't improve usability much.
> >
> > As I have no idea how to provide useful debugging information on this,
> I'll
> > try to outline my configuration here for now. Please let me know if
> there's
> > anything I can do to provide more meaningful information:
> >
> > Host: Gentoo linux, kernel 4.9.1
> > Hypervizor: Xen 4.8.0
>
> Oh you are using Xen, you might be the first one testing qxl-wddm-dod on
> Xen :(( This might explain the guest gets so slow with the driver (ie
> bug only showing up when using Xen).
>
> Christophe
>
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