https://lwn.net/Articles/777595/
> For example, control groups are a highly capable and interesting mechanism
> for process management; it would be much harder to do the job without them.
> They are much more powerful and granular than FreeBSD jails, he said.

Оригинал:
> Cgroups is a really powerful mechanism for creating manageable groups of
> processes. FreeBSD came up with jails ages ago, but when I look at jails they
> are a lot less flexible and a lot less granular than what you can do with things like cgroups.

Похоже, каждый слышит то, что ему больше нравится.