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Unified DXVK/VKD3D lag timebomb in most games if compiled from git #4436

@SheMelody

Description

@SheMelody

There's a literal "lag timebomb" when pulling the latest git versions of DXVK and VKD3D and compiling them. These lag timebombs are unified, meaning that they happen in both DXVK git and VKD3D git, and they trigger after roughly ~25 to ~40 minutes of gameplay and generally only trigger if the user is providing input to the game. This problem exists since roughly 2 months and I felt like it would be good to report it here. Since the problem is unified (happens on both DXVK and VKD3D) I actually didn't know where to report it.

Affected games mostly use Unreal Engine. Insomniac Engine games, for example, didn't seem to be affected.

Using a "Release" version of DXVK + a "Release" version of VKD3D seems to solve the problem.

More specifically, the game is smooth before the "timebomb" triggers, then consistent and repeated heavy stutters begin to happen. If needed, I can record a video.

EDIT: We have found out that, when this triggers, it only happens when moving the mouse.

Software information

Any game that uses DXVK or VKD3D pulled from git and compiled, this problem is unified and common in both DXVK and VKD3D

System information

  • GPU: Most likely any GPU, both NVIDIA and AMD (tested: 4070 SUPER, 4080 SUPER, 7900XTX)
  • Driver: Most likely any driver
  • Wine version: Tried multiple Proton versions, including GE and LFX2
  • DXVK version: straight from git

Apitrace file(s)

  • Can provide if needed, but this problem can easily be reproduced on any machine

Log files

  • Again I can provide this if it's really necessary, but this can be easily reproduced on any machine

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