Radeon Gallium3D Picks Up A Nice Performance Optimization For iGPU/dGPU PRIME Setups

[phoronix]

Phoronix: Radeon Gallium3D Picks Up A Nice Performance Optimization For iGPU/dGPU PRIME Setups

The AMD Radeon Gallium3D driver code today landed a nice optimization for benefiting PRIME setups with integrated and discrete Radeon GPUs...

https://www.phoronix.com/scan.php?page=news_item&px=RadeonSI-PRIME-ASync-SDMA-Copy

[euduvda]

Yay! Probably this improvement will help me.
Well, at least when it lands on stable.

Great work!
Improvements are always welcome!

[doomie]

nice!

[grigi]

Ooh! this should help me!

[mazumoto]

Yay ....I guess I need to emerge mesa-9999 on my Laptop now

[darkbasic]

Muxless setups should be banned from existence.

[Quackdoc]

This is nice, Prime GPU gaming is really the only way to use an external GPU on linux as both xorg and wayland get funky when you try to output to them.

[ResponseWriter]

Nice! Can anyone tell if this applies to Intel iGPU + AMD dGPU as well? I have a laptop with that setup and there never seemed to be any performance advantage to using the dGPU other than having its own VRAM. Maybe this will help.

[perpetually high]

Awesome news.

Heads up - I got burned by oibaf’s ppa the other day. Comp wouldn’t boot. Had to do nomodeset and a bunch of other stuff.

that PPA for real, sucks. No disrespect to oibaf. Latest Mesa git makes no sense if my system won’t randomly boot. Not the first time that bullshit has happened.

Good thing kisak ppa has latest stable at 21.2.3

[skeevy420]

Awesome news.

Heads up - I got burned by oibaf’s ppa the other day. Comp wouldn’t boot. Had to do nomodeset and a bunch of other stuff.

that PPA for real, sucks. No disrespect to oibaf. Latest Mesa git makes no sense if my system won’t randomly boot. Not the first time that bullshit has happened.

Good thing kisak ppa has latest stable at 21.2.3

That's why I don't run any software built like that...automatically built from the latest git regardless of the commit. For all we know we could be installing a build that was triggered when patch 4 out of 17 landed. It didn't run with the other 13 patches? You don't say.

And I'm not even talking about oibaf. Arch has user repos with package builds like that so I've been hit with the same issue from other places and packages. I basically stick to user repos that supply stable releases; anything from master I do myself after a manual review (though I might slide on things like Dolphin Emulator from master since that's not booting critical software). I might not know what the code does, but I can read the commit history and make an educated guess on if I should try a build or not.

I hope this helps my Vega iGPU and my Polaris dGPU on my desktop. Haven't tried it in a bit but it usually picks the iGPU for both rendering and output....I assume because Vega is newer than Polaris....I should probably get around to filing a bug report somewhere.