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Change always_forkserver_on_unix() to use_multiprocessing_forkserver_on_linux() (#4577)

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Ralf W. Grosse-Kunstleve 2023-03-16 14:33:34 -07:00 committed by GitHub
parent c4c15d4b10
commit cf7d2e6f15
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1 changed files with 4 additions and 5 deletions
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9
tests/conftest.py
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@ -8,8 +8,8 @@ import contextlib
import difflib
import gc
import multiprocessing
import os
import re
import sys
import textwrap
import traceback
@ -25,8 +25,9 @@ except Exception:
@pytest.fixture(scope="session", autouse=True)
def always_forkserver_on_unix():
if os.name == "nt":
def use_multiprocessing_forkserver_on_linux():
if sys.platform != "linux":
# The default on Windows and macOS is "spawn": If it's not broken, don't fix it.
return
# Full background: https://github.com/pybind/pybind11/issues/4105#issuecomment-1301004592
@ -34,8 +35,6 @@ def always_forkserver_on_unix():
# It is actually a well-known pitfall, unfortunately without guard rails.
# "forkserver" is more performant than "spawn" (~9s vs ~13s for tests/test_gil_scoped.py,
# visit the issuecomment link above for details).
# Windows does not have fork() and the associated pitfall, therefore it is best left
# running with defaults.
multiprocessing.set_start_method("forkserver")