Cgroup changes coming

[rek...@voodoowarez.com]

Hello, congratulations on a public 0.1.0.

I'm curious what the lmctfy team thinks of the cgroup changes coming down the pipe? Does lmctfy place processes
in a single shared hierarchy between the different cgroup controllers, or do processes land in different
hierarchies on different devices? Has any of the team been involved with upstream regarding the changes to
interfacing with cgroups? What PID1/init-process is lmctfy typically run under; upstart or sys-v or other?
Are any on the lmctfy team looking at the new interfaces for manipulating cgroups?

Related reading-
http://lists.freedesktop.org/archives/systemd-devel/2013-June/011521.html
http://www.linux.com/news/featured-blogs/200-libby-clark/733595-all-about-the-linux-kernel-cgroups-redesign
http://lwn.net/Articles/563567/

Godspeed, so very many thanks for sharing,
rektide

[Victor Marmol]

Just a couple of weeks ago we spoke with the upstream maintainers and other cgroup uses at the Linux plumber's conference, we try to stay on top of upcoming changes and adapt as they come. lmctfy does not currently use a single shared hierarchy, we have 4 distinct structures for hierarchies actually. From our discussions with the upstream maintainers we think our use cases will be supported, but the implementation will be different. Some of the details of that are not completely clear today so we'll see how things evolve. However, we do believe that we'll be able to continue to provide the interface we do today with changes in the underlying hierarchies. We've had to go through some of these hierarchy transitions in the past already which is why we try to have a slightly higher-level API that users can rely on.

lmctfy shouldn't care what init-process is used. That may change in the future as some init-processes may start taking over this responsibility. We may find ourselves interfacing with such agents, but at least the "target configuration" will probably assume no such agent exists.

--
You received this message because you are subscribed to the Google Groups "lmctfy" group.
To unsubscribe from this group and stop receiving emails from it, send an email to lmctfy+un...@googlegroups.com.
To post to this group, send email to lmc...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/lmctfy/20131003043117.GF5960%40voodoowarez.com.
For more options, visit https://groups.google.com/groups/opt_out.