Another daemon for managing control groups [LWN.net]

Another daemon for managing control groups

Posted Jan 3, 2014 18:44 UTC (Fri) by Cyberax (✭ supporter ✭, #52523)
In reply to: Another daemon for managing control groups by aigarius
Parent article: Another daemon for managing control groups

You don't get it.

In the new world order only ONE process will be able to create/modify cgroups. That's going to be a kernel requirement.

This in turn requires cgroups management daemon to be constantly active.

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Another daemon for managing control groups

Posted Jan 3, 2014 19:13 UTC (Fri) by dlang (guest, #313) [Link] (1 responses)

> In the new world order only ONE process will be able to create/modify cgroups. That's going to be a kernel requirement.

only for the short term until they figure out how to allow for wider access. (and even then the old way will remain for compatibility for a while)

It also would't the only time some kernel developers have said that there was going to be a kernel requirement that they later back away from before enforcing it.

so it's very possible that there will never be a kernel release that will require only having one process manage cgroups

Another daemon for managing control groups

Posted Jan 3, 2014 20:26 UTC (Fri) by Cyberax (✭ supporter ✭, #52523) [Link]

> only for the short term until they figure out how to allow for wider access.
I haven't seen any indications of that.

And that's actually my sticking point with cgroups - I think that cgroups nesting and delegation is a must.

>(and even then the old way will remain for compatibility for a while)
Yeah, sure. Without any new features.