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Title: bpo-35823: subprocess: Use vfork() instead of fork() on Linux when safe by izbyshev · Pull Request #11671 · python/cpython · GitHub

Open Graph Title: bpo-35823: subprocess: Use vfork() instead of fork() on Linux when safe by izbyshev · Pull Request #11671 · python/cpython

X Title: bpo-35823: subprocess: Use vfork() instead of fork() on Linux when safe by izbyshev · Pull Request #11671 · python/cpython

Description: When used to run a new executable image, fork() is not a good choice for process creation, especially if the parent has a large working set: fork() needs to copy page tables, which is slow, and may...

Open Graph Description: When used to run a new executable image, fork() is not a good choice for process creation, especially if the parent has a large working set: fork() needs to copy page tables, which is slow, and may...

X Description: When used to run a new executable image, fork() is not a good choice for process creation, especially if the parent has a large working set: fork() needs to copy page tables, which is slow, and may...

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python/cpython#80004 (comment)https://github.com/python/cpython/issues/80004#issuecomment-1093810689
python/cpython#11671https://github.com/python/cpython/pull/11671
https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
https://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.chttps://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.c
https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawnhttps://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
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Feb 12, 2023 https://github.com/python/cpython/pull/11671#ref-commit-850b958
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Avoid subprocess memory copy when c library supports posix_spawnhttps://github.com/home-assistant/core/commit/850b958c74959440d36f0971caa122f310ca551f
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https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawnhttps://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
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Avoid subprocess memory copy when c library supports posix_spawn home-assistant/core#87958 https://github.com/home-assistant/core/pull/87958
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Feb 13, 2023 https://github.com/python/cpython/pull/11671#ref-commit-03eea7b
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Avoid subprocess memory copy when c library supports posix_spawn (https://github.com/home-assistant/core/commit/03eea7bd3fa27c8be4de856a29e1594d34137d56
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https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
https://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.chttps://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.c
https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawnhttps://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
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https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
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https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
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Feb 17, 2023 https://github.com/python/cpython/pull/11671#ref-commit-ae9b506
https://github.com/bdraco
https://github.com/AlePerla
Avoid subprocess memory copy when c library supports posix_spawn (https://github.com/AlePerla/homeassistant_core/commit/ae9b506224f130f7753f1afa2ec5b8067ae46899
hom…https://github.com/home-assistant/core/pull/87958
ae9b506https://github.com/AlePerla/homeassistant_core/commit/ae9b506224f130f7753f1afa2ec5b8067ae46899
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python/cpython#80004 (comment)https://github.com/python/cpython/issues/80004#issuecomment-1093810689
python/cpython#11671https://github.com/python/cpython/pull/11671
https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14https://bugzilla.kernel.org/show_bug.cgi?id=215813#c14
https://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.chttps://git.musl-libc.org/cgit/musl/log/src/process/posix_spawn.c
https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawnhttps://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
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https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745https://github.com/python/cpython/blob/1b736838e6ae1b4ef42cdd27c2708face908f92c/Lib/subprocess.py#L745
https://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawnhttps://docs.python.org/3/library/subprocess.html#disabling-use-of-vfork-or-posix-spawn
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