X Presentation and Synchronization - will it help Wine performance

[Henri Verbeet]

On 10 August 2010 15:27, Groeschel, Volker <volker.groeschel at sap.com> wrote:
> I wonder if Wine will profit from the new X Presentation and Synchronization
> feature NVIDIA is working on:
>
>
>
> http://people.freedesktop.org/~aplattner/x-presentation-and-synchronization.pdf
>
I doubt it, unless it will somehow make the drivers themselves faster.

> e.g. when I start several instances of my game with Wine on my computer (AMD
> X2 with Ubuntu and proprietary NVIDIA graphic drivers), performance  breaks
> down dramatically.
>
Yeah, that's a fairly well known issue with the nvidia drivers, you
can also see that when e.g. comparing fps from running two glxgears
instances with running just a single instance. Running two instances
at the same time will get you much less than half the performance.
That issue may be unique to nvidia's setup, I don't get it with the
free r600 driver. Though it should be said that performance there
isn't quite at the level where it's fair to compare yet.