ValveSoftware / ValveSoftware/Proton

Stuttering in Proton

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Dominant language
C++
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Description

Why Proton has so much stutter? I mean i know that its the shaders compiling (i think) but wasn't "fossilize" supposed to fixed this issue? Also why Proton-GE has significant reduced stutter (some games no stutter at all) than proton? Some games its night and day difference so i'm not sure if its Async or something else but it's really good, couldn't whatever this is be implemented in official proton?

UPDATE :
Resident Evil 5 - https://www.youtube.com/watch?v=5P39jSesmSs
Batman Arkham City - https://www.youtube.com/watch?v=1Ei2Dcif0eU&feature=youtu.be

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Use Resident Evil 5 and Batman Arkham City as reproduction cases, starting with the linked videos and comparing official Proton with Proton-GE. Investigate whether shader compilation, Fossilize, or async behavior explains the difference. Done means identifying the cause and documenting a scoped change or confirmed limitation.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
game-dev, tooling
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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