From: Lennart Poettering <mzxreary@0pointer.de>
To: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Li Zefan <lizf@cn.fujitsu.com>,
containers@lists.linux-foundation.org, cgroups@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Kay Sievers <kay.sievers@vrfy.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
linux-kernel@vger.kernel.org, Vivek Goyal <vgoyal@redhat.com>,
Michal Schmidt <mschmidt@redhat.com>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Mon, 12 Mar 2012 23:31:14 +0100 [thread overview]
Message-ID: <20120312223113.GB18359@tango.0pointer.de> (raw)
In-Reply-To: <20120312222817.GI23255@google.com>
On Mon, 12.03.12 15:28, Tejun Heo (tj@kernel.org) wrote:
>
> Hey,
>
> On Mon, Mar 12, 2012 at 11:22:18PM +0100, Peter Zijlstra wrote:
> > On Mon, 2012-03-12 at 15:10 -0700, Tejun Heo wrote:
> > >
> > > * How to map controllers which aren't aware of full hierarchy is still
> > > an open question but I'm still standing by one active node on any
> > > root-to-leaf path w/ root group serving as the special rest group.
> >
> > What does this mean?
>
> Let's say we have a tree like the following.
>
> root
> / | \
> G1 G2 G3
> / \
> G31 G32
>
> So, for cgroups which don't support full hierarchy, it'll be viewed as
> either,
>
> root
> / | \
> G1 G2 G3
>
> or
>
> root
> / | | \
> G1 G2 G31 G32
>
> With root being treated specially, probably as just being a equal
> group as other groups, I'm not fully determined about that yet.
Note that at least systemd places all services by default beneath a
single "super" group (/system/), hence the first suggestion would make
little sense for us. The second suggestion would be fine however.
Lennart
--
Lennart Poettering - Red Hat, Inc.
next prev parent reply other threads:[~2012-03-12 22:31 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 21:19 [RFD] cgroup: about multiple hierarchies Tejun Heo
2012-02-21 21:21 ` Tejun Heo
2012-02-22 13:34 ` Glauber Costa
2012-02-23 7:45 ` Serge E. Hallyn
2012-02-23 17:29 ` Tejun Heo
2012-02-23 18:47 ` Serge Hallyn
2012-02-26 4:59 ` Konstantin Khlebnikov
2012-02-22 13:30 ` Peter Zijlstra
2012-02-22 13:37 ` Glauber Costa
2012-02-22 18:01 ` Tejun Heo
2012-02-23 7:39 ` Li Zefan
2012-02-22 15:45 ` Frederic Weisbecker
2012-02-22 18:22 ` Tejun Heo
2012-02-27 17:46 ` Frederic Weisbecker
2012-02-22 16:38 ` Vivek Goyal
2012-02-22 16:57 ` Vivek Goyal
2012-02-22 18:43 ` Tejun Heo
2012-02-23 9:41 ` Peter Zijlstra
2012-02-23 14:13 ` Peter Zijlstra
2012-03-01 17:19 ` Michal Schmidt
2012-03-01 18:03 ` Peter Zijlstra
2012-03-02 11:08 ` Michal Schmidt
2012-03-02 11:23 ` Peter Zijlstra
2012-03-02 11:28 ` Michal Schmidt
2012-03-02 11:34 ` Peter Zijlstra
2012-03-01 20:26 ` Mike Galbraith
2012-03-01 21:02 ` Vivek Goyal
2012-03-01 22:04 ` Mike Galbraith
2012-03-01 22:38 ` C Anthony Risinger
2012-03-02 10:51 ` Michal Schmidt
2012-03-02 11:52 ` Mike Galbraith
2012-03-05 12:43 ` Lennart Poettering
2012-03-05 15:47 ` Mike Galbraith
2012-03-05 19:58 ` Mike Galbraith
2012-03-02 2:43 ` Kay Sievers
2012-03-02 10:15 ` Peter Zijlstra
2012-03-02 11:16 ` Michal Schmidt
2012-03-02 11:24 ` Peter Zijlstra
2012-02-23 21:38 ` Vivek Goyal
2012-02-23 22:34 ` Tejun Heo
2012-02-28 21:16 ` Vivek Goyal
2012-02-28 21:21 ` Peter Zijlstra
2012-02-28 21:35 ` Vivek Goyal
2012-02-28 21:43 ` Peter Zijlstra
2012-02-28 21:54 ` Vivek Goyal
2012-02-28 22:00 ` Peter Zijlstra
2012-02-28 22:31 ` Vivek Goyal
2012-02-28 21:53 ` Peter Zijlstra
2012-02-28 22:09 ` Vivek Goyal
2012-02-24 11:33 ` Peter Zijlstra
2012-02-22 18:33 ` Tejun Heo
2012-02-23 19:41 ` Vivek Goyal
2012-02-23 22:38 ` Tejun Heo
2012-02-23 7:59 ` Li Zefan
2012-02-23 20:32 ` Vivek Goyal
2012-02-23 8:22 ` Li Zefan
2012-02-23 17:33 ` Tejun Heo
[not found] ` <m162em2efy.fsf@fess.ebiederm.org>
2012-03-03 14:26 ` Serge Hallyn
2012-03-05 11:37 ` Lennart Poettering
2012-03-12 22:10 ` Tejun Heo
2012-03-12 22:22 ` Peter Zijlstra
2012-03-12 22:28 ` Tejun Heo
2012-03-12 22:31 ` Lennart Poettering [this message]
2012-03-12 23:00 ` Tejun Heo
2012-03-12 23:02 ` Peter Zijlstra
2012-03-12 23:09 ` Tejun Heo
2012-03-12 23:43 ` Lennart Poettering
2012-03-12 22:32 ` Peter Zijlstra
2012-03-12 22:39 ` Tejun Heo
2012-03-12 22:44 ` Peter Zijlstra
2012-03-12 23:04 ` Tejun Heo
2012-03-13 14:10 ` Vivek Goyal
2012-03-13 16:11 ` C Anthony Risinger
2012-03-13 16:30 ` C Anthony Risinger
2012-03-13 17:25 ` Peter Zijlstra
2012-03-13 17:31 ` Peter Zijlstra
2012-03-13 10:11 ` Glauber Costa
2012-03-13 14:03 ` Vivek Goyal
2012-03-13 15:59 ` Tejun Heo
2012-03-16 23:14 ` James Bottomley
2012-03-12 22:37 ` Serge Hallyn
2012-03-12 22:55 ` Tejun Heo
2012-03-13 13:49 ` Vivek Goyal
2012-03-13 16:02 ` Tejun Heo
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