AMD 7900 xtx poor performance on steam

[ritzmax72]

Yesterday I upgraded from nvidia 2070 super to 7900 xtx. Got it working on gentoo: I installed amdgpu, (USE="vulkan,vulkan-overlay) media-libs/mesa.
Then I ran Elden Ring from Steam using proton GE 9-5. I am just getting 41-50 fps at "Best Quality", "2560x1440p", fullscreen.

This is almost slightly worse than what I used to get using 2070 super.
Also glxgears and vkgears are somehow stuck at 60 fps.
I will dump some info here:

[Maitreya]

It being stuck at 60 sounds a awful lot like it is locked to vsync.

BTW , what kernel version and firmware are you running?

And which icd is used from /usr/share/vulkan/icd.d/?

[ritzmax72]

[ritzmax72]

Looking through protondb for Wukong I found this :

[Ralphred]

Yeah. So Wukong has/had an issue where it would select the wrong rendering device - I was never affected by it (vega64) but many were.
The use of "FORCE" in this case is just saying "no, you WILL use this rendering device".

The gfx driver stack consists of layers, at the bottom is your amdgpu kernel driver, on top of that your xorg-driver (xf86-video-amdgpu), then on top of that your OpenGL/Vulkan drivers (mesa and optionally amdgpu-pro-vulkan).
So dealing with each layer in turn:
AMDGPU kernel driver
Make sure the GPU got all the firmware it wanted at boot time with dmesg|grep -i firmware
Check it's in use with lspci -k|grep VGA -A3
X's AMDGPU driver
By default X looks at

[Naib]

What kernel are you running?
There was an... unfortunate "feature" that got introduced in kernel-6.10.x that coincided with an update to mesa resulting in excessive VRAM flushes...
To give you an idea my DOTA2 collapse to 10fps

Two things fixed this
1. 6.11.x series resolved this
1. enable BAR in bios to permit larger sizes to be copied to the gpu (instead of lots of little ones)
_________________
#define HelloWorld int
#define Int main()
#define Return printf
#define Print return
#include <stdio>
HelloWorld Int {
Return("Hello, world!\n");
Print 0;

[ritzmax72]

[Ralphred]

[ritzmax72]