NVIDIA/AMD Memory Information Extensions For Mesa/Gallium3D

[phoronix]

Phoronix: NVIDIA/AMD Memory Information Extensions For Mesa/Gallium3D

Marek Olšák's latest Mesa patch series is hooking up support for the vendor-based OpenGL memory information reporting extensions to the Mesa and Gallium3D drivers...

http://www.phoronix.com/scan.php?pag...esa-Extensions

[marek]

It's only done for R600 and later chips. Other drivers are unaffected, but they had to modified so as not to expose the extensions.

[Michael]

It's only done for R600 and later chips. Other drivers are unaffected, but they had to modified so as not to expose the extensions.

Whoops, fixed, thanks. Hadn't looked at the individual patches but was just looking at the overview and saw those changes there. Thanks.

[Azpegath]

I wonder if this is the extension that Steam (and for instance L4D2) uses to recognize what graphics card (and performance) I have. It's been working really poorly before.

[marek]

I wonder if this is the extension that Steam (and for instance L4D2) uses to recognize what graphics card (and performance) I have. It's been working really poorly before.

It doesn't work for Borderlands 2. Not sure about L4D2.

[tomtomme]

It doesn't work for Borderlands 2. Not sure about L4D2.

What about all the UE3 based games. They all do not recognize how much VRAM the gpu has and set it too low, see https://www.reddit.com/r/linux_gamin...g_and_texture/
Will this change something?
And is such a thing already somehow working with amdgpu? It might explain the perfomance gain of the 290 in bioshock infinite when switching from radeon to amdgpu...

[marek]

I don't think so. Applications can't tell a difference between radeon and amdgpu.

[Azpegath]

Is it possible that we get sub-par performance because the game thinks we only have, say, 256 Mb of dedicated graphics memory while my card actually has 2 Gb. I remember reading something like that regarding L4D2, where I should change a setting to say that the game could use lots of memory. It would suck if the game would actually stream things from and to the card even though it doesn't actually have to.

[V10lator]

I wonder if this is the extension that Steam (and for instance L4D2) uses to recognize what graphics card (and performance) I have. It's been working really poorly before.

Does this answer your question:

?

[Azpegath]

Does this answer your question:

?

Not sure, depends on how much VRAM you really have ;-)