hybrid-graphics-linux team mailing list archive

[Joaquín Ignacio Aramendía <samsagax@xxxxxxxxx>]

Had you tried a non-compressed image format co carry te frames?
I use proxy or xv myself and got better performance in games. Lowers the
stress on the main processor to decompress the frames.
-- 
Joaquín Ignacio Aramendía <samsagax@xxxxxxxxx>

El mar, 28-06-2011 a las 09:04 +0300, turgut kalfaoğlu escribió:
> Well, they basically said it's  "normal" to be slow.. however that can
> be.. :(
> -turgut
> 
> 
> -------- Original Message -------- 
>                           Subject: 
> [Bug 27618] Very slow wine Opengl
> performance with ASUS 1215N
>                              Date: 
> Mon, 27 Jun 2011 13:24:00 -0500
>                              From: 
> wine-bugs@xxxxxxxxxx
>                                To: 
> turgut@xxxxxxxxxxxxx
> 
> 
> http://bugs.winehq.org/show_bug.cgi?id=27618
> 
> Roderick Colenbrander <thunderbird2k@xxxxxxxxx> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>              Status|UNCONFIRMED                 |RESOLVED
>                  CC|                            |thunderbird2k@xxxxxxxxx
>          Resolution|                            |INVALID
> 
> --- Comment #1 from Roderick Colenbrander <thunderbird2k@xxxxxxxxx> 2011-06-27 13:23:59 CDT ---
> The issue you are seeing is not a Wine problem. Bumblebee uses VirtualGL and
> the use of VirtualGL comes at an additional performance hit.
> 
> The way things work when you use VirtualGL is that all 3D content is rendered
> on the Nvidia GPU. In order to show the images on your screen, every 3D frame
> has to copied back to system memory and copied back to video memory on your
> Intel card.
> This is quite slow and stress the PCI-E bus quite a bit (especially on laptops
> where you typically have much less bandwidth). It directly slows down the game
> as well because this is all happening during the 'glXSwapBuffers' call the game
> makes.
> 
> On Windows the Nvidia drivers use similar VirtualGL-like tricks to render on
> the Intel GPU, but there are a lot more optimizations are in place (and there
> is likely more direct interaction with the Intel driver).
> 
> At least this issue is definitely not a Wine bug.
> 
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