Very low performance on AMD GPU

[lowenz]

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

 

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

Edited August 16, 2022 by lowenz

[AluminumHaste]

Fine for me on 22.8.1

[AluminumHaste]

Turn off Antialiasing

[lowenz]

It's ALWAYS off

Re-generated the cfg, abysmal performance remains.

 

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

Edited August 16, 2022 by lowenz

[nbohr1more]

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 ?

[AluminumHaste]

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

[lowenz]

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 August 16, 2022 by lowenz

[lowenz]

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

No problem in the menu!

[stgatilov]

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.

[AluminumHaste]

Yeah I had to restart the video driver and performance went back up.

 

[lowenz]

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

No problem in the menus

Edited September 22, 2022 by lowenz

[nbohr1more]

6 hours ago, lowenz said:

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

No problem in the menus

Darkmod.cfg ?

[lowenz]

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

[nbohr1more]

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"

?

[nbohr1more]

@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

 

 

[lowenz]

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 September 22, 2022 by lowenz

[lowenz]

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 September 22, 2022 by lowenz

[AluminumHaste]

Yeah they aren't set to be archived so they'll go back to the coded defaults.

[AluminumHaste]

Also not getting the greatest FPS here:

 

 

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.

Intel 12700K

Radeon 6800XT

[lowenz]

New drivers set, same problem

[nbohr1more]

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 ?

[lowenz]

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: 

Edited October 4, 2022 by lowenz

[lowenz]

On 10/4/2022 at 10:25 PM, lowenz said:

New drivers set, same problem

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

MESA OGL->D3D12 - 70 FPS

 

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

Edited November 14, 2022 by lowenz

[nbohr1more]

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

MESA OGL->D3D12 - 70 FPS

 

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?

[stgatilov]

@lowenz, could you explain when the issue started happening?