AMD Assertion: 'Assertion `!counting_period || interrupt_val <= adjusted_counting_period' failed to hold'
Nobody has claimed this yet.
- Dominant language
- C++
- Stars
- 10.7k
- Forks
- 662
- Avg merge
- 2d 3h
- Merged PRs (30d)
- 2
Description
This is related to #2720 but is triggering frequently on playback; not just recording, on AMD CPUs. (Specifically threadrippers.)
Bumping the skid from 10000 to 30000 worked for Nika; but made it extremely slow.
The issue is (I'm told) that on these CPUs the PMU interrupt is fired with a variable (and often too high) latency; causing us to overshoot the bounds.
Contributor 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.
Research direction
Start by reading the related issue #2720 and the code path that raises the counting-period assertion during playback on AMD Threadripper CPUs. Reproduce the failure with the current skid setting and compare it with the 30000 workaround; done means playback no longer triggers the assertion without making execution extremely slow.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- devtools, operating-systems, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100