ci: Use native arm builders #3464
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This speeds up the build job dramatically by eliminating the need for emulation. MacOS builds have also shifted to run on arm hosts instead of x86 hosts, and it's now possible to run tests for both arm and x86 on the same host.
This configuration has a bug which appears unrelated to Tornado: python/cpython#130522
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This speeds up the build job dramatically by eliminating the need for
emulation.
MacOS builds have also shifted to run on arm hosts instead of x86 hosts,
and it's now possible to run tests for both arm and x86 on the same
host.
New timings:
Previously, the ubuntu build (for intel + emulated arm) took 22 minutes, so we've subtracted 7 minutes from the job run time (windows is now the long pole) and 5 minutes of total running time. Note that we're expanding the test coverage by running the full test suite on arm now, so an apples-to-apples comparison would show even more time savings.