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Noticed the same too. It is likely that we are both impacted by the very aggressive default of 1ms for `internal_poll_interval`: https://github.com/ceph/ceph-cm-ansible/pull/308

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Huh, polling with a sleep() rather than a proper event wait seems like a bad code smell there...

How so? This is almost certainly what the internals of a packaged event wait would look like.

It could use a Queue of some kind rather than just pushing onto a deque between threads [1]? Then it would idly wait for the results_thread_main to push results.

I guess that might be what Mitogen does (along with other improvements), a faster Ansible strategy [2].

[1] https://github.com/ansible/ansible/blob/becf9416736dc911d341...

[2] https://github.com/mitogen-hq/mitogen/blob/master/docs/ansib...

Thanks for the heads up, i'll give that a go :)

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