Optimise the way tracemalloc and PyRefTracer hooks work
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- Dominant language
- Python
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Description
In https://github.com/python/cpython/issues/125703 @markshannon has raised that he is unhappy about the performance implications of where these hooks are placed and in a call we discussed that he has some ideas on how to make them more performant by moving them elsewhere or adapting then.
I am opening this issue to track and sync about these improvements for 3.14 and beyond.
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
No files or tests are named. Start by reading issue 125703 and the linked discussion about tracemalloc and PyRefTracer hook placement, then inspect the relevant CPython runtime code and performance measurements. Done is not defined here; the issue needs an agreed approach and measurable 3.14 performance target before implementation can begin.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- performance
- Issue type
- Refactor
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100