pytest-dev / pytest-dev/pytest-xdist

Do not spawn more workers than testcases

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Description

I switched from a Core i5 (4 cores) to a Ryzen 7 (16 cores). The time pytest-xdist takes to spawn the workers is consequently greater, but it is expected.

Sometimes I run pytest for just several tests: sometimes 1 test, sometimes 1 file with a few tests. I thought it would save some time if pytest-xdist would only spawn the workers needed.

What do you think?

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Research direction

The issue does not name a source file, test, or entry point. Start by tracing how pytest-xdist collects test counts and spawns workers, then inspect existing worker-management tests. Done means running a small selection does not spawn more workers than needed, with coverage for one test, one file, and larger selections.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
testing-qa
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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