Company of Heroes 2 Is The Latest Linux Game Showcasing AMD's Performance Wreck With Catalyst

[geearf]

I would say it is purely amd's fault or else Intel would have problems too.

Hmmm, that's fair, but then what about r600g/radeonsi ?

[soulsource]

That's exactly what I'd be curious about. Could anyone who owns the game benchmark it with open source AMD drivers?

[Kano]

I think AMD needs to rethink their driver optimization strategy. Maybe they could reuse the Nvidia override and use a binary specific blacklist/workaround to do something different. It seems a bit late to introduce a new override and it is more or less impossible to optimize for each new Linux port. Some are similar - thats clear - a user database with CAP settings might be possible too. Basically AMD cards are only problematic with OpenGL - this is not Linux specific, the driver is sharing the code with the Windows one. If AMD wants to catch up they need new ideas - game/app specific tuning only can work with a handful games used for benchmarks - it would not be enough for the rest - they could use those of couse to provide some optimization hints for OpenGL devs to improve performance directly.

[dimko]

Do we really need an article every other day reporting on how bad AMD GPU performance is on Linux? It is no longer news and hasn't been for quite a few years. I don't see what the purpose having articles like this so often serve. Everyone knows that if you want to game exclusively on Linux you need a NVIDIA GPU.

The answer is yes. I was thinking to buy GPU recently. I could buy AMD, since they are somewhat open source. And that would very bad decision. Now I am happy owner of gtx780ti

[Nille]

this is not Linux specific, the driver is sharing the code with the Windows one.

The Wii Emulator Developer has written a Blog About the OpenGL Drivers and the Issues. The AMD OGL Implementation shares a lot of code but on both platforms they different.

https://de.dolphin-emu.org/blog/2013/09/26/dolphin-emulator-and-opengl-drivers-hall-fameshame/

[dimko]

Catalyst is fucked up, its not a news, but writing an article every fucking day about it, thats a bit too much, really. I know NV sponsors Michael with cards, but Michael, arent you supposed to support opensource, which is AMD, not nv

He support his readers first. Which is good for his business and his users

[marceel]

please Michael, stfu.

[Azrael5]

any test by mesa drivers?

[Luke_Wolf]

He support his readers first. Which is good for his business and his users

I'm sorry but how exactly can you have been around this long and think that?

He supports his biases first, his wallet second. His readership is and has always been near the bottom of the list of things he cares about, if he cared about his readership Phoronix would be much more like The H Online used to be, instead of being a very tabloidish blog. The forum also wouldn't continue to be broken for as long as it has.

Michael isn't a monster, or a shill by any means, but it's important to understand exactly the kind of person you're dealing with when reading this site. His goal at the end of the day is to get as many ad views from as many people as possible, if that means clickbait he'll use clickbait, if that means stirring controversy that's what he's going to do. He is very good at this, but he's gone a rather bit overboard with his choice of words while beating a dead horse, which is getting him backlash.

[elect]

(As an aside, you really, really should map VBO's to host memory inter-frame, not intra-frame, as the OpenGL spec specifically tells you that this may stall the pipeline as the driver/state machine/etc. waits to ensure that the VBO is guaranteed to NOT be in-flight on a rendering pass. Any time you see something like that, you should really treat it as a "shall" instead of blithely doing something stupid...)

glMap does stall the pipeline