mirror of https://github.com/pybind/pybind11.git
Change `always_forkserver_on_unix()` to `use_multiprocessing_forkserver_on_linux()` (#4577)
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@ -8,8 +8,8 @@ import contextlib
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import difflib
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import gc
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import multiprocessing
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import os
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import re
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import sys
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import textwrap
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import traceback
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@ -25,8 +25,9 @@ except Exception:
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@pytest.fixture(scope="session", autouse=True)
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def always_forkserver_on_unix():
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if os.name == "nt":
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def use_multiprocessing_forkserver_on_linux():
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if sys.platform != "linux":
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# The default on Windows and macOS is "spawn": If it's not broken, don't fix it.
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return
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# Full background: https://github.com/pybind/pybind11/issues/4105#issuecomment-1301004592
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@ -34,8 +35,6 @@ def always_forkserver_on_unix():
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# It is actually a well-known pitfall, unfortunately without guard rails.
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# "forkserver" is more performant than "spawn" (~9s vs ~13s for tests/test_gil_scoped.py,
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# visit the issuecomment link above for details).
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# Windows does not have fork() and the associated pitfall, therefore it is best left
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# running with defaults.
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multiprocessing.set_start_method("forkserver")
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