0c981d3547
* drop empty setup.py which "breaks" on incomplete build envs * use the build package to build the dist * update the gh workflow to use it fixup noise from pre-commit
22 lines
1.0 KiB
Gherkin
22 lines
1.0 KiB
Gherkin
Partially restore old initial batch distribution algorithm in ``LoadScheduling``.
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pytest orders tests for optimal sequential execution - i. e. avoiding
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unnecessary setup and teardown of fixtures. So executing tests in consecutive
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chunks is important for optimal performance.
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In v1.14, initial test distribution in ``LoadScheduling`` was changed to
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round-robin, optimized for the corner case, when the number of tests is less
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than ``2 * number of nodes``. At the same time, it became worse for all other
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cases.
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For example: if some tests use some "heavy" fixture, and these tests fit into
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the initial batch, with round-robin distribution the fixture will be created
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``min(n_tests, n_workers)`` times, no matter how many other tests there are.
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With the old algorithm (before v1.14), if there are enough tests not using
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the fixture, the fixture was created only once.
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So restore the old behavior for typical cases where the number of tests is
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much greater than the number of workers (or, strictly speaking, when there
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are at least 2 tests for every node).
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