Linux Container Development
 help / color / mirror / Atom feed
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Michal Schmidt <mschmidt-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Frederic Weisbecker
	<fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Lennart Poettering
	<lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Andrew Morton
	<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Mon, 12 Mar 2012 15:28:17 -0700	[thread overview]
Message-ID: <20120312222817.GI23255@google.com> (raw)
In-Reply-To: <1331590938.18960.57.camel@twins>

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.

Thanks.

-- 
tejun

  parent reply	other threads:[~2012-03-12 22:28 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20120221211938.GE12236@google.com>
     [not found] ` <20120221212106.GF12236@google.com>
     [not found]   ` <20120221212106.GF12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-22 13:34     ` [RFD] cgroup: about multiple hierarchies Glauber Costa
2012-02-26  4:59     ` Konstantin Khlebnikov
     [not found]   ` <4F44EEE4.2000809@parallels.com>
     [not found]     ` <4F44EEE4.2000809-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-02-23  7:45       ` Serge E. Hallyn
     [not found]     ` <20120223074526.GA15835@mail.hallyn.com>
     [not found]       ` <20120223074526.GA15835-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2012-02-23 17:29         ` Tejun Heo
     [not found]           ` <20120223172915.GC22536-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-23 18:47             ` Serge Hallyn
     [not found] ` <1329917459.24994.14.camel@twins>
2012-02-22 13:37   ` Glauber Costa
2012-02-22 18:01   ` Tejun Heo
2012-02-23  7:39   ` Li Zefan
     [not found] ` <20120222163858.GB4128@redhat.com>
     [not found]   ` <20120222165714.GC4128@redhat.com>
     [not found]     ` <20120222165714.GC4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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
     [not found]             ` <4F4FAF89.3090706-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-01 18:03               ` Peter Zijlstra
2012-03-02 11:08                 ` Michal Schmidt
     [not found]                   ` <4F50AA22.9080007-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:23                     ` Peter Zijlstra
     [not found]                   ` <1330687394.11248.222.camel@twins>
2012-03-02 11:28                     ` Michal Schmidt
     [not found]                       ` <4F50AEC3.5090807-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:34                         ` Peter Zijlstra
2012-03-01 20:26               ` Mike Galbraith
     [not found]             ` <1330633603.7414.49.camel@marge.simpson.net>
     [not found]               ` <1330633603.7414.49.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 21:02                 ` Vivek Goyal
2012-03-02  2:43                 ` Kay Sievers
     [not found]                   ` <CAPXgP12_A=uz_p92eBN49DTSKj7iP0rChW9cE81aZKWEjOH5nA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-02 10:15                     ` Peter Zijlstra
2012-03-02 11:16                 ` Michal Schmidt
     [not found]                   ` <4F50ABF2.5070809-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:24                     ` Peter Zijlstra
     [not found]               ` <20120301210213.GF13533@redhat.com>
     [not found]                 ` <20120301210213.GF13533-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-01 22:04                   ` Mike Galbraith
     [not found]                 ` <1330639448.7414.97.camel@marge.simpson.net>
     [not found]                   ` <1330639448.7414.97.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 22:38                     ` C Anthony Risinger
2012-03-02 10:51                     ` Michal Schmidt
     [not found]                       ` <4F50A63F.40306-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:52                         ` Mike Galbraith
2012-03-05 12:43                     ` Lennart Poettering
     [not found]                       ` <20120305124310.GD10929-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-05 15:47                         ` Mike Galbraith
     [not found]                       ` <1330962421.7368.69.camel@marge.simpson.net>
     [not found]                         ` <1330962421.7368.69.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-05 19:58                           ` Mike Galbraith
2012-02-23 21:38         ` Vivek Goyal
     [not found]           ` <20120223213847.GK19691-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-23 22:34             ` Tejun Heo
     [not found]               ` <20120223223457.GJ22536-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-28 21:16                 ` Vivek Goyal
     [not found]                   ` <20120228211627.GH9920-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-28 21:21                     ` Peter Zijlstra
2012-02-28 21:35                       ` Vivek Goyal
     [not found]                         ` <20120228213526.GI9920-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-28 21:43                           ` Peter Zijlstra
2012-02-28 21:54                             ` Vivek Goyal
     [not found]                               ` <20120228215439.GJ9920-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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
     [not found]   ` <20120222163858.GB4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-22 16:57     ` Vivek Goyal
2012-02-22 18:33     ` Tejun Heo
2012-02-23  7:59     ` Li Zefan
     [not found]   ` <20120222183351.GD32694@google.com>
     [not found]     ` <20120222183351.GD32694-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-23 19:41       ` Vivek Goyal
     [not found]         ` <20120223194109.GI19691-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-23 22:38           ` Tejun Heo
     [not found]   ` <4F45F1F0.2010102@cn.fujitsu.com>
     [not found]     ` <4F45F1F0.2010102-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2012-02-23 20:32       ` Vivek Goyal
     [not found] ` <4F45F742.1060605@cn.fujitsu.com>
     [not found]   ` <4F45F742.1060605-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2012-02-23 17:33     ` Tejun Heo
     [not found] ` <20120221211938.GE12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-21 21:21   ` Tejun Heo
2012-02-22 13:30   ` Peter Zijlstra
2012-02-22 15:45   ` Frederic Weisbecker
     [not found]     ` <20120222154501.GA1693-oHC15RC7JGTpAmv0O++HtFaTQe2KTcn/@public.gmane.org>
2012-02-22 18:22       ` Tejun Heo
     [not found]     ` <20120222182207.GC32694@google.com>
     [not found]       ` <20120222182207.GC32694-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-27 17:46         ` Frederic Weisbecker
2012-02-22 16:38   ` Vivek Goyal
2012-02-23  8:22   ` Li Zefan
2012-03-03  9:58   ` Eric W. Biederman
     [not found]     ` <m162em2efy.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2012-03-03 14:26       ` Serge Hallyn
2012-03-05 11:37   ` Lennart Poettering
2012-03-12 22:10   ` Tejun Heo
     [not found] ` <20120312221050.GG23255@google.com>
     [not found]   ` <20120312221050.GG23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:22     ` Peter Zijlstra
2012-03-12 22:37     ` Serge Hallyn
2012-03-13 13:49     ` Vivek Goyal
     [not found]       ` <20120313134922.GB29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 16:02         ` Tejun Heo
     [not found]   ` <1331590938.18960.57.camel@twins>
2012-03-12 22:28     ` Tejun Heo [this message]
     [not found]       ` <20120312222817.GI23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:31         ` Lennart Poettering
2012-03-12 22:32         ` Peter Zijlstra
2012-03-12 22:39           ` Tejun Heo
     [not found]           ` <20120312223944.GJ23255@google.com>
     [not found]             ` <20120312223944.GJ23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:44               ` Peter Zijlstra
2012-03-12 23:04                 ` Tejun Heo
     [not found]                   ` <20120312230416.GM23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-13 14:10                     ` Vivek Goyal
     [not found]                       ` <20120313141032.GD29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 16:11                         ` C Anthony Risinger
2012-03-13 17:25                         ` Peter Zijlstra
2012-03-13 17:31                           ` Peter Zijlstra
     [not found]                       ` <CAGAVQTGus7LUWV3AdhAFy--gr=uJRWtSGjuP69-EckBiXy0qVg@mail.gmail.com>
     [not found]                         ` <CAGAVQTGus7LUWV3AdhAFy--gr=uJRWtSGjuP69-EckBiXy0qVg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-13 16:30                           ` C Anthony Risinger
2012-03-13 10:11                 ` Glauber Costa
2012-03-13 14:03         ` Vivek Goyal
     [not found]           ` <20120313140345.GC29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 15:59             ` Tejun Heo
     [not found]           ` <20120313155955.GB7349@google.com>
     [not found]             ` <20120313155955.GB7349-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-16 23:14               ` James Bottomley
     [not found]       ` <20120312223113.GB18359@tango.0pointer.de>
     [not found]         ` <20120312223113.GB18359-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-12 23:00           ` Tejun Heo
     [not found]         ` <20120312230020.GL23255@google.com>
     [not found]           ` <20120312230020.GL23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 23:02             ` Peter Zijlstra
2012-03-12 23:09               ` Tejun Heo
2012-03-12 23:43               ` Lennart Poettering
     [not found]   ` <20120312223707.GA8272@peqn>
2012-03-12 22:55     ` Tejun Heo
2012-02-21 21:19 Tejun Heo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20120312222817.GI23255@google.com \
    --to=tj-dgejt+ai2ygdnm+yrofe0a@public.gmane.org \
    --cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
    --cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
    --cc=fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=kay.sievers-tD+1rO4QERM@public.gmane.org \
    --cc=lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org \
    --cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=mschmidt-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
    --cc=peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org \
    --cc=vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox