Remove parallelization for iOS runners. #573
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Merged, thanks. Let's see how it goes. |
freakboy3742
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Reverts python#573 now that python/cpython#129200 has been resolved.
zware
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Reverts #573 now that python/cpython#129200 has been resolved.
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Fixes python/cpython#129200.
The iOS testbed runner has a known issue with starting 2 runs near the same time. The runner starts a simulator; but it finds the ID of the simulator that has been started by generating a list of know simulators, and then waiting until another entry appears. This works fine until there are 2 test runs started at near the same time, and the runner is unable to identify which simulator this test run has started, and raises an error.
There runtime for a test run can also vary depending on how many runs are operating in parallel - in the best case, a run will take 15 minutes; however, I have also seen timeouts on a test run.
This PR removes parallelization from the iOS runner, which should resolve both issues.