On Fri, 17 May 2019 21:33:48 -0400 Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > - Adoption data suggests that cgroup2 isn't really used yet. RHEL8 was > just released with cgroup1 per default. Fedora is currently debating > a switch. None of the other distros default to cgroup2. There is an > article on the lwn frontpage *right now* about Docker planning on > switching to cgroup2 in the near future. Kubernetes is on > cgroup1. Android is on cgroup1. Shakeel agrees that Facebook is > probably the only serious user of cgroup2 right now. The cloud and > all mainstream container software is still on cgroup1. I'm thinking we need a cc:stable so these forthcoming distros are more likely to pick up the new behaviour? Generally, your arguments sound good to me - I don't see evidence that anyone is using cgroup2 in a manner which is serious enough to be seriously affected by this change.