Run subprocess-starting tests without pytest-xdist#30264
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jkseppan wants to merge 1 commit intomatplotlib:mainfrom
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Run subprocess-starting tests without pytest-xdist#30264jkseppan wants to merge 1 commit intomatplotlib:mainfrom
jkseppan wants to merge 1 commit intomatplotlib:mainfrom
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Similar idea at #29981, but it continued using xdist for everything and just moved all subprocess-using tests to a single worker. |
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I suspect that we are running out of process IDs, or the scheduler is not letting all subprocesses execute, leading to timeouts in tests that start subprocesses when other long-running tests are executing. This happens often with Python 3.14 tests for some reason. Put the tests that start a subprocess in a separate loadgroup so that no two of them get executed in parallel. Alternative to matplotlib#30264.
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These still get stuck. Yet another idea: run the tests in separate runner instances (in case we are running out of CPU time or some resource like that on the single instance) #30278 |
I suspect that we are running out of process IDs, or the scheduler is not letting all subprocesses execute, leading to timeouts in tests that start subprocesses when other long-running tests are executing. This happens often with Python 3.14 tests for some reason. Add a new pytest marker for the tests that start a subprocess at top level, and run these tests in a separate pass without pytest-xdist parallelization.
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I suspect that we are running out of process IDs, or the scheduler
is not letting all subprocesses execute, leading to timeouts in
tests that start subprocesses when there are other tests executing.
This happens often with Python 3.14 tests for some reason.