make tests parallelizable (multi processing) using pytest-xdist #2899
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agjohnson
requested changes
May 23, 2017
docs/install.rst
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| .. note:: | ||
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| Some unit tests depend on Hg (mercurial). | ||
| Be sure that Hg is `installed <https://www.mercurial-scm.org/wiki/Download>`_ if you want to see all the tests pass. |
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I'd like to address the mercurial change separately, could this be rebased out?
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The mercurial change was not supposed to be in there. It might me in all of my recent PRs :(
I am not having initial success with rebasing. Its not something I do often :/ I'll continue to work on it.
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I'm happy to jump in and help if its faster. If you want any guidance on this, I'm happy to pair as well -- feel free to drop by https://gitter.im/rtfd/readthedocs.org if you'd like to set something up
Be ware that running tests in parallel may cause tests to flake. This commit does not make parallel test the default it only makes it possible.
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agjohnson
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May 24, 2017
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Be ware that running tests in parallel may cause tests to flake.
This commit does not make parallel test the default it only makes it possible.
usage
tox -- -n 4
Benchmarking
using the following command ( on my old laptop...)
time tox -e py27 -- -n 6 --ignore=rtd_tests/tests/test_celery.pyw/o xdist: 1 min 24 seconds
2 processes: 53 seconds
3 processes: 44 seconds
4 processes: 40 seconds
5 processes: 40 seconds (tests flake)
6 processes: 43 seconds (tests flake)
~ 2x speedup!