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Thx for this excellent post, it actually made me sign in here for over one year again. I usually dont reply here anymore because of this crazy nvidia...

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They removed the nir debug environment variable for some unknown reason. You have to set drirc....

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My theory why ACO yields better framerates:
llvm has a big problem with some shaders, resulting in crazy stuttering and even noticible stalls. Second...

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They rely soly on automated tests. If a case like that didn't get test there, every gets boom.
Especially RadeonSI is extremely error prone. Two...

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I was having the same problem. But I upgraded to Vega just this year and somehow I couldn't imagine that no one had this problem before in all years this...

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Is this something for radeon's nir backend too?

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Black Mesa wasn't starting without this extension. Don't know if they still rely on that but I think they fixed it in the beta branch.

Minecraft...

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I think Powerplay missing is the major showstopper for enable it by default.
I guess AMD has other priorities and focus on newer gens but people...

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I may be wrong, but I tend to agree what venemo is saying. I don't think that running dx9 over vulkan makes it automatically faster than native. Even...

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Thx for the test Michael!
If Marek could tweak his patches a little more we might see some small gains but this doesn't look like this is something...

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Can confirm. Those sdma patches immediately freeze the whole system. Even if it's just the desktop.

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Yup. This bug has never been fixed. But since Michael is always testing with different settings, the problem didn't showed up.
I have up the hope...

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Anyone from AMD already took a look at this bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=201345

?

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Those are nice numbers for vulkan!
Do other AMD GPUs profit as well from this?

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Thx! Lets pray AMD supports development or we have another dead born project....