[Spice-devel] Fedora 18 guest's GUI is slow. Due to 3D driver?

[Yonit Halperin]

Hi,
On 01/24/2013 08:23 AM, javaon wrote:
> Thanks for replying, Alon.
>
> Yes, I found that 3d rendering in software. But.. is there any method to
> improve the response speed of Fedora GNOME desktop? You know, Windows
> XP/7 guest's speed is really pretty fast!
>
> Thanks.
>
You can try disabling off screen surfaces for qxl in Xorg.conf

Section "Device"
          Identifier  "qxl"
          Driver      "qxl"
          #Option  "DPI"   "96 x 96"
          #Option "ENABLE_IMAGE_CACHE" "True"
          #Option "ENABLE_FALLBACK_CACHE" "False"
          Option "ENABLE_SURFACES" "False"
EndSection

Regards,
Yonit.
> On 01/24/2013 09:13 PM, Alon Levy wrote:
>>> hi list,
>>>
>>> I am running Fedora 18 (GNOME version) as a guest in a host with qemu
>>> 1.3. But the desktop is slow. I have already opened 3D acceleration
>>> in the guest's xml definition file.But the desktop is slow. I have
>>> already opened 3D acceleration in the guest's xml definition file.
>>>
>>> By the way, Fedora's XFCE version works smoothly.
>>>
>>> Does anyone know what the root cause is? Is it caused by spice/qxl 3D
>>> driver?
>> The 3d rendering is done in the guest entirely, in software, you can
>> verify by seeing there is no /dev/drm device being open, and looking
>> at X log file should show it is using software emulation. Looking at
>> the cpu usage in the guest it should be high as well.
>>
>>> Thanks,
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>>> Spice-devel at lists.freedesktop.org
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>>>
>
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