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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/tools/manifest/mputil.py | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/tools/manifest/mputil.py')
| -rw-r--r-- | testing/web-platform/tests/tools/manifest/mputil.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/testing/web-platform/tests/tools/manifest/mputil.py b/testing/web-platform/tests/tools/manifest/mputil.py new file mode 100644 index 0000000000..fc9d5ac94c --- /dev/null +++ b/testing/web-platform/tests/tools/manifest/mputil.py @@ -0,0 +1,14 @@ +import multiprocessing +import sys + +def max_parallelism() -> int: + cpu_count = multiprocessing.cpu_count() + if sys.platform == 'win32': + # On Python 3 on Windows, using >= MAXIMUM_WAIT_OBJECTS processes + # causes a crash in the multiprocessing module. Whilst this enum + # can technically have any value, it is usually 64. For safety, + # restrict manifest regeneration to 56 processes on Windows. + # + # See https://bugs.python.org/issue26903 and https://bugs.python.org/issue40263 + cpu_count = min(cpu_count, 56) + return cpu_count |