ValveSoftware / ValveSoftware/Proton
Certain Games will not launch via Proton If you have a high CPU Thread Count but will on native Windows
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- C++
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Description
I am opening this issue to track all the games that will not launch specifically on high thread count systems with Proton but launch on native Windows without issue. The commands taskset and numactl will not work. It has to be WINE_CPU_TOPOLOGY. The specific issue threads listed below seem to already have plenty of logs pertaining to this issue.
Far Cry 4 (https://github.com/ValveSoftware/Proton/issues/2143)
Will not launch if you have more than 31 threads.
WINE_CPU_TOPOLOGY=31:0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30 %command%
Warhammer 40,000: Space Marine (https://github.com/ValveSoftware/Proton/issues/934)
Will not launch if you have more than 26 threads.
WINE_CPU_TOPOLOGY=26:0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25 %command%
Lara Croft and the Guardian of Light (https://github.com/ValveSoftware/Proton/issues/249)
Will not launch on high thread count systems. I am not certain of the exact thread count it breaks at but it will launch on 12 threads but not on 26 threads.
WINE_CPU_TOPOLOGY=12:0,1,2,3,4,5,6,7,8,9,10,11 %command%
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing the linked Far Cry 4, Space Marine, and Lara Croft issue threads and their existing logs. Reproduce the listed launch failures on high-thread-count systems with and without the provided WINE_CPU_TOPOLOGY commands; done means identifying and addressing the shared Proton behavior across the affected games.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100