Comment 15 for bug 1780348

> I also moved a sneaky vm swappiness setting in nova compute out of code an into the default config, where it's more obvious that it's there.

Good catch. Ceph OSD charm removed vm.swappiness=1 some time ago after some discussions. As we tend to colocate nova-compute and ceph-osd as converged architecture, we might want to remove the default vm.swappiness from nova-compute as well.
https://git.openstack.org/cgit/openstack/charm-ceph-osd/commit/?id=3527bf4ae1723a10f49774fef646aaa5b9fc0c45