pytest-dev / pytest-dev/pytest-xdist
feature request: make `--dist worksteal` the default
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- Python
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Description
i have been finding that --dist worksteal is generally more performant than --dist load -- sometimes substantially. ideally, --dist worksteal should be the default, since it's simply a better algorithm. this would also address https://github.com/pytest-dev/pytest-xdist/issues/890 by making the other schedulers (loadfile, loadgroup etc) include work stealing.
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 tracing how the --dist option selects between worksteal, load, loadfile, and loadgroup. Read the related issue #890 and compare the stated scheduler behavior and performance claims. Done means the default behavior is clearly defined and the affected scheduler modes are covered consistently.
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Assessment
- Tech stack
- python
- Domain
- distributed-systems, performance, testing-qa
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100