Mercurial > hg
changeset 44518:b2e41723f886
run-tests: restrict Rust thread pool to 3 threads during tests
Differential Revision: https://phab.mercurial-scm.org/D8270
| author | Raphaël Gomès <rgomes@octobus.net> |
|---|---|
| date | Tue, 10 Mar 2020 16:04:30 +0100 |
| parents | 448d700e0d27 |
| children | 52d40f8fb82d |
| files | tests/run-tests.py |
| diffstat | 1 files changed, 6 insertions(+), 0 deletions(-) [+] |
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--- a/tests/run-tests.py Fri Feb 28 00:31:14 2020 +0100 +++ b/tests/run-tests.py Tue Mar 10 16:04:30 2020 +0100 @@ -2995,6 +2995,12 @@ # we do the randomness ourself to know what seed is used os.environ['PYTHONHASHSEED'] = str(random.getrandbits(32)) + # Rayon (Rust crate for multi-threading) will use all logical CPU cores + # by default, causing thrashing on high-cpu-count systems. + # Setting its limit to 3 during tests should still let us uncover + # multi-threading bugs while keeping the thrashing reasonable. + os.environ.setdefault("RAYON_NUM_THREADS", "3") + if self.options.tmpdir: self.options.keep_tmpdir = True tmpdir = _sys2bytes(self.options.tmpdir)