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Android profile runs don't always fully write out the profile data. In this case, the corrupted profile data is successfully uploaded, but future profile-use PGO builds try to merge the data and fail. Retrying the profile-use builds doesn't help, since they all pull from the same job that published the corrupt data. We can detect this in the run task by using llvm-profdata merge, and if the merge fails the task can automatically be retried. Note that the data gets redundantly merged in the profile-use build, but it may not be possible to run the merge in the run task on all platforms (eg: OSX), so we have to keep the merge there as well. Differential Revision: https://phabricator.services.mozilla.com/D36294 --HG-- extra : moz-landing-system : lando |
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| configs | ||
| docs | ||
| examples | ||
| external_tools | ||
| mozharness | ||
| scripts | ||
| test | ||
| LICENSE | ||
| mach_commands.py | ||
| moz.build | ||
| README.txt | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| tox.ini | ||
| unit.sh | ||
# Mozharness ## Docs * https://developer.mozilla.org/en-US/docs/Mozharness_FAQ * https://wiki.mozilla.org/ReleaseEngineering/Mozharness * http://moz-releng-mozharness.readthedocs.org/en/latest/mozharness.mozilla.html * http://moz-releng-docs.readthedocs.org/en/latest/software.html#mozharness ## Submitting changes Like any Gecko change, please create a patch or submit to Mozreview and open a Bugzilla ticket under the Mozharness component: https://bugzilla.mozilla.org/enter_bug.cgi?product=Release%20Engineering&component=Mozharness This bug will get triaged by Release Engineering ## Run unit tests To run the unit tests of mozharness the `tox` package needs to be installed: ``` pip install tox ``` There are various ways to run the unit tests. Just make sure you are within the `$gecko_repo/testing/mozharness` directory before running one of the commands below: ``` tox # run all unit tests tox -- -x # run all unit tests but stop after first failure tox -- test/test_base_log.py # only run the base log unit test ``` Happy contributing! =)