Quadrupling Ansible performance with Mitogen

> An experimental extension to Ansible is included that implements host connections over Mitogen, replacing embedded shell invocations with pure-Python equivalents invoked via highly efficient remote procedure calls tunnelled over SSH. No changes are required to the target hosts.

This approach looks really promising. By default Ansible opens a ton of SSH connections (to the same host..) and it also spawns a ton of subshells for a typical run.

That is of course really wasteful and inefficient, and this project tries to fix it.

https://mitogen.readthedocs.io/en/latest/ansible.html