[High On Life] uneven frame pacing which is not present with -dx11

vkd3dopen

HansKristian-Work/vkd3d-proton#1812 · opened 2023-12-16 by GrabbenD · updated 2023-12-17 · 4 comments · github

GGrabbenD 2023-12-16 github

Software information

Game: High On Life (UE4)
Settings: any (the issue is more apparent with higher settings)

System information

GPU: RX 6800 XT
Driver: Mesa OpenGL version string: 4.6 (Compatibility Profile) Mesa 24.0.0-devel (git-9ab59574ef)
Wine version: 9.0rc2.r0.g7a8c039a5c3-1
VKD3D-Proton version: 105b5b7

Comparsion

Moving the cursor in circles while standing outside the safehouse (after completing introduction):

-dx11
highonlife_1

-dx12
highonlife_dx12

RRareMv 2023-12-17 github

When running in DX12, env var: radv_zero_vram = false

GGrabbenD 2023-12-17 github

Memory Cleaning

When running in DX12, env var: radv_zero_vram = false

Thanks for taking a look

radv_zero_vram=false as environment variable had no impact on the stuttering
I also tried using 0001-drm-amdgpu-WIP-always-wipe-on-release.patch kernel patch but it made no difference either. Reference: [#9189 (comment 1999381)](https://gitlab.freedesktop.org/mesa/mesa/-/issues/9189#note_1999381)

MESA vs AMDVLK vs AMDVLK-PRO with `-dx11` and `-dx12`

I've confirmed that this issue isn't driver related, -dx12 has stuttering and uneven framepacing with every driver. Here's screenshots of framgraph and a performance summary of each driver:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/10309#note_2210896

BBlisto91 2023-12-17 github

Does VKD3D_CONFIG=no_upload_hvv change anything

GGrabbenD 2023-12-17 github

Thanks for the idea!
Just tried VKD3D_CONFIG=no_upload_hvv environment variable twice but it made no difference. The framepacing in the framegraph haven't changed (and microstuttering is still visible).

Launch options

VKD3D_CONFIG=no_upload_hvv`x2 2023-12