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e6a107c5aa
On Python 2.x, operations on pthread objects with a timeout set actually cause internal polling. When polling fails to yield a positive result, it quickly backs off to a 50ms loop, which results in a huge amount of latency throughout. Instead, give up using Queue.Queue.get(timeout=...) and replace it with the UNIX self-pipe trick. Knocks another 45% off my.yml in the Ansible examples directory against a local VM. This has the potential to burn a *lot* of file descriptors, but hell, it's not the 1940s any more, RAM is all but infinite. I can live with that. This gets things down to around 75ms per playbook step, still hunting for additional sources of latency. |
7 years ago | |
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action | 7 years ago | |
connection | 7 years ago | |
strategy | 7 years ago | |
__init__.py | 7 years ago | |
helpers.py | 7 years ago |