[question] CPU core unpinning?
Maintainers usually reply within 1 day
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 25/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- linux
- Domain
- operating-systems, performance
Research direction
The issue names intel_lpmd, an Alder Lake i5-12500H, and Arch Linux but no source file, test, or entry point. Begin by examining how the daemon handles CPU affinity in AUTO mode and reproduce the reported behavior; done would be a documented answer or a narrowly scoped, validated change.
Written by the indexing model from the issue text.
Description
Basically, I've had an issue with intel_lpmd, which is that if I have to disable it (either by stopping the service or switching to performance mode on gnome's system menu) if I want to do anything I know is demanding, like a game, because otherwise I'll get awful performance in such situations, as the software in question only seemingly is allowed to use the last 4 threads, as shown by htop (13-16). So, is there a way for intel_lpmd to unpin stuff from the low power cores (i'm on alderlake i5-12500h)
And yes, I run intel_lpmd always on AUTO mode, regardless of being on AC or BAT power. I'm on Arch Linux as well.
- Dominant language
- C
- Stars
- 225
- Forks
- 33
- Avg merge
- 2m
- Merged PRs (30d)
- 2
Getting set up
- No Dockerfile or Docker Compose file
- No pull request template
- Read the contributing guide
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.
More from intel/intel-lpmd
-
Difficulty 2/5 1-3 hours Newbie friendliness 75/100
intel/intel-lpmd#137 ·
Maintainers usually reply within 1 day
-
Difficulty 2/5 1-3 hours Newbie friendliness 82/100
intel/intel-lpmd#125 · 1 comment ·
Maintainers usually reply within 1 day
-
Please don't move processes out of cgroupsPossibly taken @0x484558 claimed this 17 days ago. Open
Difficulty 5/5 Over a week Newbie friendliness 25/100
intel/intel-lpmd#128 · 15 comments ·
Maintainers usually reply within 1 day
-
Native IRQ affinity is not restored after the first cycle in multi-state configurationsPossibly taken @0x484558 claimed this 18 days ago. Open
Difficulty 3/5 1-2 days Newbie friendliness 68/100
intel/intel-lpmd#126 ·
Maintainers usually reply within 1 day
-
MSR reads from parked cores wake the cores unnecessarilyPossibly taken @maciejwieczorretman claimed this 92 days ago. Open
intel/intel-lpmd#122 · 12 comments · 1 reaction · 1 assignee ·
Maintainers usually reply within 1 day
All issues in intel/intel-lpmd
Similar issues
-
Status: Opened
Difficulty 1/5 Under an hour Newbie friendliness 75/100
Maintainers usually reply within 1 day
-
Difficulty 2/5 1-3 hours Newbie friendliness 78/100
-
bug
Difficulty 2/5 1-3 hours Newbie friendliness 90/100
Maintainers usually reply within 3 days
-
Type: Bug
Difficulty 2/5 1-3 hours Newbie friendliness 74/100
espressif/idf-extra-components#870 ·
Maintainers usually reply within 1 day
-
Difficulty 2/5 1-3 hours Newbie friendliness 62/100
Maintainers usually reply within 1 day