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Very low performance on AMD GPU

lowenz

By lowenz
in TDM Tech Support

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stgatilov
stgatilov

I replugged cable to my AMD RX 550, and I can definitely reproduce the same issue. I have severe performance degradation (like 3x or 4x) in New Job on all shadows except for hard stencil. And t

stgatilov
stgatilov

It seems that when I pass vec2[150] to a function, AMD compiler honestly generates copying instructions 🤔 Copying 1.2 KB of data on every fragment is quite slow...

nbohr1more
nbohr1more

2.11 beta 01 is currently in the installer list. The thread about it will be out soon but you can test it now. That said, we need to bisect your performance problem by having you test older build

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lowenz

lowenz

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Win11 fresh installation, same problems.

BUT an interesting fact, just rotating the camera In St. Lucia:

https://i.postimg.cc/j5pkJnqp/0.jpg
https://i.postimg.cc/c4M5rJpz/1.jpg

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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lowenz

lowenz

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2.11 dev of course.

Will re-download 2.08 soon (got an SSD catastrophic failure :D -> new SSD -> I'm reinstalling all the software)

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Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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nbohr1more

nbohr1more

Posted
Posted

2.11 beta 01 is currently in the installer list. The thread about it will be out soon but you can test it now.

That said, we need to bisect your performance problem by having you test older builds starting with 2.08

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Please visit TDM's IndieDB site and help promote the mod:

 

http://www.indiedb.com/mods/the-dark-mod

 

(Yeah, shameless promotion... but traffic is traffic folks...)

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lowenz

lowenz

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Posted (edited)
On 12/3/2022 at 6:10 PM, nbohr1more said:

2.11 beta 01 is currently in the installer list. The thread about it will be out soon but you can test it now.

That said, we need to bisect your performance problem by having you test older builds starting with 2.08

Tested the release build of 2.10. No problem at all!

So it's something in the 2.11 (dev/bet)

2.10: 210.jpg

 

2.11:

https://i.postimg.cc/BvPtL87x/211.jpg

 

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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AluminumHaste

AluminumHaste

Posted
Posted
2 hours ago, nbohr1more said:

Psst! In the latest dev build try setting:

r_useDebugGroups 0

This was set to 1 in dev16617-10107

 

Beat me to it, was just coming here to say this.
Keep in mind it will be back to 1 after restart as it's default in the code is enabled.
The next beta update will probably have it disabled again. Stupid AMD

I always assumed I'd taste like boot leather.

 

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lowenz

lowenz

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10 hours ago, nbohr1more said:

Thanks!

Please try Dev Build dev16599-10071

Problem is already there.

r_usedebuggroups makes no difference in the last dev build.

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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nbohr1more

nbohr1more

Posted
Posted
3 hours ago, lowenz said:

10036 -> working

10071 -> FPS ISSUE

 

nailed.

A few big changes occurred there. It looks like we didn't commit any binaries to SVN between these releases. Are you able to compile from source?

If so, can you try compiling 10037 ( big shadow change )?

Please visit TDM's IndieDB site and help promote the mod:

 

http://www.indiedb.com/mods/the-dark-mod

 

(Yeah, shameless promotion... but traffic is traffic folks...)

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stgatilov

stgatilov

Posted
Posted

Could you please run the game with:

  • r_ignoreGlErrors 0
  • r_glDebugContext 1
  • r_glDebugOutput 2

Then get to the place which is slow and take a condump?
Are you sure you get no GLSL warnings/errors and no OpenGL error spam?

Does the issue go away when you:

  • Turn off SSAO?
  • Both on stencil shadow and shadow maps?
  • Turn off shadows (execute: r_shadows 0; reloadmodels) ?

Other than that, we can bisect further by revisions... although that would take time if you cannot build the game yourself.

 

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lowenz

lowenz

Posted
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Posted (edited)
5 hours ago, nbohr1more said:

A few big changes occurred there. It looks like we didn't commit any binaries to SVN between these releases. Are you able to compile from source?

If so, can you try compiling 10037 ( big shadow change )?

Of course I can build the exe.

SSAO and Stencil/ShadowMaps already tested, not the culprit.

Will try disabling the shadows at all.

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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lowenz

lowenz

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Shadows!

r_shadows 0 (and no need to relead models) ->

stlucia-2022-12-07-08-59-57-1916-83-4282

77 FPS instead of 18

So no need to build anything?

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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stgatilov

stgatilov

Posted
Posted
11 minutes ago, lowenz said:

r_shadows 0 (and no need to relead models) -> 77 FPS instead of 18
So no need to build anything?

I'm not so sure 😥

I would try svn rev 10040, and if it is slow with shadows, then revs 10039-10037 too.
Otherwise, try svn revs 10070-10066.
I don't think anything else relates to the problem.

By the way, did you try "r_useNewBackend 0" (out of curiosity) ?

And condump with GL errors enabled is still welcome.

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lowenz

lowenz

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SSAO is in a postprocessing stage, right? Because that's the release where it got fixed on AMD.

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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lowenz

lowenz

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2 hours ago, stgatilov said:

 

By the way, did you try "r_useNewBackend 0" (out of curiosity) ?

 

No effect on the issue

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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lowenz

lowenz

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From the console the only error (red hint) I see is GL_ARB_Compatibility not found

Edited by lowenz

Task is not so much to see what no one has yet seen but to think what nobody has yet thought about that which everybody see. - E.S.

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