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Very low performance on AMD GPU

lowenz

By lowenz
in TDM Tech Support

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lowenz

lowenz

Posted
Posted (edited)

Radeon Software 22.8.1 -> massive performance hindrance somewhere (AMD has modified something in the driver this time too).

The-Dark-Modx64-2022-08-16-10-59-04-761.

 

There's no specif option - resolution apart - having influence on this 😐

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

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

Posted Images

lowenz

lowenz

Posted
  • Author
Posted (edited)

It's ALWAYS off 😐

Re-generated the cfg, abysmal performance remains.

 

TDM-specific issue, RBDoom3 (OpenGL) has no problem 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.

AluminumHaste

AluminumHaste

Posted
Posted

What performance do you get in the menu just after game load?

That's weird. I just updated SVN and built binaries from source. Now performance dropped 100+ FPS

WIHA8aT.png

I always assumed I'd taste like boot leather.

 

lowenz

lowenz

Posted
  • Author
Posted (edited)
2 hours ago, nbohr1more said:

Hmm...

Is Uncapped FPS enabled ?

The standard Doom 3 FPS cap ( com_fixedTic 0 ) is known to steal a ton of performance in the latest drivers.

How does the Dhewm3 Doom 3 port perform ?

Uncapped (set to 80). But that's not the culprit (already tested).

RBDoom3 (not Dhewm): https://github.com/RobertBeckebans/RBDOOM-3-BFG

Perfectly flat 120 FPS.

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.

lowenz

lowenz

Posted
  • Author
Posted
13 minutes ago, AluminumHaste said:

What performance do you get in the menu just after game load?

That's weird. I just updated SVN and built binaries from source. Now performance dropped 100+ FPS

WIHA8aT.png

No problem in the menu!

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.

  • 2 weeks later...
stgatilov

stgatilov

Posted
Posted

I think I have some sessions with bad performance too lately.
Not sure what it depends on...
I thought it could be some multi-monitor/GPU setup, causing framebuffer to go through various layers.

  • 4 weeks later...
lowenz

lowenz

Posted
  • Author
Posted (edited)

Still having the same problem, RX 570 with 22.9.1 (yesterday) drivers, REALLY low framerate (15 FPS).

No problem in the menus

The-Dark-Modx64-2022-09-22-01-54-43-802.

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.

nbohr1more

nbohr1more

Posted
Posted
1 hour ago, lowenz said:

Pretty standard: https://pastebin.com/24PcxhFe

Thanks!

 

Do either:

seta r_shadowMapSinglePass "1"

or

setting Stencil Shadows in the GUI

improve performance at all ?

 

How about toggling:

r_softShadowsMipmaps "0"

?

  • Like 1

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

 

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lowenz

lowenz

Posted
  • Author
Posted (edited)

Of course stencil improves, from 15 to 19 as expected 😛

And single pass doesn't make any difference.

 

No, the problem is somewhere else (related to the new OpenGL Radeon drivers)

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.

lowenz

lowenz

Posted
  • Author
Posted (edited)
41 minutes ago, nbohr1more said:

@lowenz

I think we need to fix the visibility of this since the CVAR's don't print to darkmod.cfg but also try disable the BVH optimizations:

  • r_modelBvhLightTris 0
  • r_modelBvhShadows 0

No difference, but I see they reset to their default values (3 / 1) every restart.

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.

AluminumHaste

AluminumHaste

Posted
Posted

Also not getting the greatest FPS here:

 

BtF5LfF.png

 

Like, what in the world is in this scene that requires 100% GPU usage at 2.2Ghz and only gets 173FPS???

 

Looking at this corner can't even max to 300 fps.

q0hYWiD.png

Intel 12700K

Radeon 6800XT

I always assumed I'd taste like boot leather.

 

  • 2 weeks later...
lowenz

lowenz

Posted
  • Author
Posted

New drivers set, same problem

The-Dark-Modx64-2022-10-04-22-18-50-322.

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.

nbohr1more

nbohr1more

Posted
Posted

Does FPS jump up dramatically if SSAO and \ or Soft Shadows are disabled... or does it stay relatively low?

Does FPS scale depending on your Render Scale value or does it remain low no matter how low you set the render scaling or resolution?

Does FPS improve dramatically if you issue "killmonsters" in the console ?

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...)

lowenz

lowenz

Posted
  • Author
Posted (edited)

Stable low, the only thing that matters is the resolution.

I'll test "killmonsters".

EDIT: it doesn't affect

 

In other OpenGL games no issue at all: Wo-B-2022-10-04-23-06-39-741.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.

  • 1 month later...
lowenz

lowenz

Posted
  • Author
Posted (edited)
On 10/4/2022 at 10:25 PM, lowenz said:

New drivers set, same problem

The-Dark-Modx64-2022-10-04-22-18-50-322.

Same problem with the new build BUT here's the catch:

With MESA OpenGL->D3D12 ( https://github.com/pal1000/mesa-dist-win/releases/tag/22.3.0-rc1 ) TDM works like a charm!

OpenGL (RX 570 RS 22.10.2 waiting for the november release) - can't go over 15 FPS

0.jpg


MESA OGL->D3D12 - 70 FPS

1.jpg

 

Please, fix! The OGL driver is good enough, it's something in the engine

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.

nbohr1more

nbohr1more

Posted
Posted
3 hours ago, lowenz said:

Same problem with the new build BUT here's the catch:

With MESA OpenGL->D3D12 ( https://github.com/pal1000/mesa-dist-win/releases/tag/22.3.0-rc1 ) TDM works like a charm!

OpenGL (RX 570 RS 22.10.2 waiting for the november release) - can't go over 15 FPS

0.jpg


MESA OGL->D3D12 - 70 FPS

1.jpg

 

Please, fix! The OGL driver is good enough, it's something in the engine

Would you be willing to capture a tracy timeline?

https://wiki.thedarkmod.com/index.php?title=Tracy:_timeline_profiler

Probably a good idea to get a condump and darkmod.cfg too (just for the sake of consistency).

There might be new OpenGL errors (etc).

https://wiki.thedarkmod.com/index.php?title=Reporting_Problem

@stgatilov do you suppose all those texture bind noise errors that show when r_debugGLSL is enabled might be at fault here?

Maybe AMD penalizes those errors more?

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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