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From: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@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>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Tue, 13 Mar 2012 09:49:22 -0400	[thread overview]
Message-ID: <20120313134922.GB29169@redhat.com> (raw)
In-Reply-To: <20120312221050.GG23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>

On Mon, Mar 12, 2012 at 03:10:50PM -0700, Tejun Heo wrote:
> Hello, guys.
> 
> Thanks a lot for the discussion and here are my take aways:
> 
> * At least to me, nobody seems to have strong enough justification for
>   orthogonal multiple hierarchies, so, yeah, unless something else
>   happens, I'm scheduling multiple hierarchy support for the chopping
>   block.  This is a long term thing (think years), so no need to panic
>   right now and as is life plans may change and fail to materialize,
>   but I intend to at least move away from it.

So everything will be under single hierarchy? How will we control that
what controllers are active on what cgroups? Or all controllers are going
to be active on all cgroups on that hierarchy. 

That would be bad for IO cgroups where a better way to use it to isolate
the trouble making workload and run rest in root or a common cgroup.

Thanks
Vivek

WARNING: multiple messages have this Message-ID (diff)
From: Vivek Goyal <vgoyal@redhat.com>
To: Tejun Heo <tj@kernel.org>
Cc: 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>,
	Lennart Poettering <lennart@poettering.net>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	linux-kernel@vger.kernel.org,
	Michal Schmidt <mschmidt@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Tue, 13 Mar 2012 09:49:22 -0400	[thread overview]
Message-ID: <20120313134922.GB29169@redhat.com> (raw)
In-Reply-To: <20120312221050.GG23255@google.com>

On Mon, Mar 12, 2012 at 03:10:50PM -0700, Tejun Heo wrote:
> Hello, guys.
> 
> Thanks a lot for the discussion and here are my take aways:
> 
> * At least to me, nobody seems to have strong enough justification for
>   orthogonal multiple hierarchies, so, yeah, unless something else
>   happens, I'm scheduling multiple hierarchy support for the chopping
>   block.  This is a long term thing (think years), so no need to panic
>   right now and as is life plans may change and fail to materialize,
>   but I intend to at least move away from it.

So everything will be under single hierarchy? How will we control that
what controllers are active on what cgroups? Or all controllers are going
to be active on all cgroups on that hierarchy. 

That would be bad for IO cgroups where a better way to use it to isolate
the trouble making workload and run rest in root or a common cgroup.

Thanks
Vivek

  parent reply	other threads:[~2012-03-13 13:49 UTC|newest]

Thread overview: 211+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-21 21:19 [RFD] cgroup: about multiple hierarchies Tejun Heo
2012-02-21 21:19 ` Tejun Heo
     [not found] ` <20120221211938.GE12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-21 21:21   ` Tejun Heo
2012-02-21 21:21     ` Tejun Heo
     [not found]     ` <20120221212106.GF12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-22 13:34       ` Glauber Costa
2012-02-22 13:34       ` Glauber Costa
2012-02-22 13:34         ` Glauber Costa
     [not found]         ` <4F44EEE4.2000809-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-02-23  7:45           ` Serge E. Hallyn
2012-02-23  7:45             ` Serge E. Hallyn
     [not found]             ` <20120223074526.GA15835-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2012-02-23 17:29               ` Tejun Heo
2012-02-23 17:29                 ` Tejun Heo
     [not found]                 ` <20120223172915.GC22536-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-23 18:47                   ` Serge Hallyn
2012-02-23 18:47                     ` Serge Hallyn
2012-02-23  7:45           ` Serge E. Hallyn
2012-02-26  4:59       ` Konstantin Khlebnikov
2012-02-26  4:59         ` Konstantin Khlebnikov
2012-02-26  4:59       ` Konstantin Khlebnikov
2012-02-21 21:21   ` Tejun Heo
2012-02-22 13:30   ` Peter Zijlstra
2012-02-22 13:30   ` Peter Zijlstra
2012-02-22 13:30     ` Peter Zijlstra
2012-02-22 13:37     ` Glauber Costa
2012-02-22 13:37     ` Glauber Costa
2012-02-22 13:37       ` Glauber Costa
2012-02-22 18:01     ` Tejun Heo
2012-02-22 18:01     ` Tejun Heo
2012-02-22 18:01       ` Tejun Heo
2012-02-23  7:39     ` Li Zefan
2012-02-23  7:39     ` Li Zefan
2012-02-23  7:39       ` Li Zefan
2012-02-22 15:45   ` Frederic Weisbecker
2012-02-22 15:45     ` Frederic Weisbecker
     [not found]     ` <20120222154501.GA1693-oHC15RC7JGTpAmv0O++HtFaTQe2KTcn/@public.gmane.org>
2012-02-22 18:22       ` Tejun Heo
2012-02-22 18:22       ` Tejun Heo
2012-02-22 18:22         ` Tejun Heo
     [not found]         ` <20120222182207.GC32694-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-27 17:46           ` Frederic Weisbecker
2012-02-27 17:46         ` Frederic Weisbecker
2012-02-22 16:38   ` Vivek Goyal
2012-02-22 16:38     ` Vivek Goyal
     [not found]     ` <20120222163858.GB4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-22 16:57       ` Vivek Goyal
2012-02-22 16:57       ` Vivek Goyal
2012-02-22 16:57         ` Vivek Goyal
     [not found]         ` <20120222165714.GC4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-22 18:43           ` Tejun Heo
2012-02-22 18:43           ` Tejun Heo
2012-02-22 18:43             ` Tejun Heo
2012-02-23  9:41           ` Peter Zijlstra
2012-02-23  9:41             ` Peter Zijlstra
2012-02-23 14:13             ` Peter Zijlstra
2012-02-23 14:13               ` Peter Zijlstra
2012-03-01 17:19               ` Michal Schmidt
2012-03-01 17:19                 ` Michal Schmidt
     [not found]                 ` <4F4FAF89.3090706-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-01 18:03                   ` Peter Zijlstra
2012-03-01 18:03                     ` Peter Zijlstra
2012-03-02 11:08                     ` Michal Schmidt
2012-03-02 11:08                       ` Michal Schmidt
     [not found]                       ` <4F50AA22.9080007-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:23                         ` Peter Zijlstra
2012-03-02 11:23                         ` Peter Zijlstra
2012-03-02 11:23                           ` Peter Zijlstra
2012-03-02 11:28                           ` Michal Schmidt
2012-03-02 11:28                             ` Michal Schmidt
     [not found]                             ` <4F50AEC3.5090807-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:34                               ` Peter Zijlstra
2012-03-02 11:34                                 ` Peter Zijlstra
2012-03-01 20:26                   ` Mike Galbraith
2012-03-01 20:26                     ` Mike Galbraith
     [not found]                     ` <1330633603.7414.49.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 21:02                       ` Vivek Goyal
2012-03-01 21:02                         ` Vivek Goyal
     [not found]                         ` <20120301210213.GF13533-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-01 22:04                           ` Mike Galbraith
2012-03-01 22:04                             ` Mike Galbraith
     [not found]                             ` <1330639448.7414.97.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 22:38                               ` C Anthony Risinger
2012-03-01 22:38                                 ` C Anthony Risinger
2012-03-01 22:38                               ` C Anthony Risinger
2012-03-02 10:51                               ` Michal Schmidt
2012-03-02 10:51                                 ` Michal Schmidt
     [not found]                                 ` <4F50A63F.40306-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:52                                   ` Mike Galbraith
2012-03-02 11:52                                     ` Mike Galbraith
2012-03-02 11:52                                   ` Mike Galbraith
2012-03-05 12:43                               ` Lennart Poettering
2012-03-05 12:43                                 ` Lennart Poettering
     [not found]                                 ` <20120305124310.GD10929-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-05 15:47                                   ` Mike Galbraith
2012-03-05 15:47                                     ` Mike Galbraith
     [not found]                                     ` <1330962421.7368.69.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-05 19:58                                       ` Mike Galbraith
2012-03-05 19:58                                         ` Mike Galbraith
2012-03-05 15:47                                   ` Mike Galbraith
2012-03-01 22:04                           ` Mike Galbraith
2012-03-01 21:02                       ` Vivek Goyal
2012-03-02  2:43                       ` Kay Sievers
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 10:15                           ` Peter Zijlstra
2012-03-02 10:15                             ` Peter Zijlstra
2012-03-02 11:16                       ` Michal Schmidt
2012-03-02 11:16                         ` Michal Schmidt
     [not found]                         ` <4F50ABF2.5070809-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:24                           ` Peter Zijlstra
2012-03-02 11:24                           ` Peter Zijlstra
2012-03-02 11:24                             ` Peter Zijlstra
2012-03-01 20:26                   ` Mike Galbraith
2012-02-23 21:38             ` Vivek Goyal
2012-02-23 21:38               ` Vivek Goyal
     [not found]               ` <20120223213847.GK19691-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-23 22:34                 ` Tejun Heo
2012-02-23 22:34                   ` Tejun Heo
     [not found]                   ` <20120223223457.GJ22536-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-28 21:16                     ` Vivek Goyal
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 21:21                           ` Peter Zijlstra
2012-02-28 21:35                           ` Vivek Goyal
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 21:43                                 ` Peter Zijlstra
2012-02-28 21:54                                 ` Vivek Goyal
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 22:00                                       ` Peter Zijlstra
2012-02-28 22:31                                       ` Vivek Goyal
2012-02-28 22:31                                         ` Vivek Goyal
2012-02-28 21:53                               ` Peter Zijlstra
2012-02-28 21:53                                 ` Peter Zijlstra
2012-02-28 22:09                                 ` Vivek Goyal
2012-02-28 22:09                                   ` Vivek Goyal
2012-02-24 11:33                 ` Peter Zijlstra
2012-02-24 11:33                   ` Peter Zijlstra
2012-02-22 18:33       ` Tejun Heo
2012-02-22 18:33       ` Tejun Heo
2012-02-22 18:33         ` Tejun Heo
     [not found]         ` <20120222183351.GD32694-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-23 19:41           ` Vivek Goyal
2012-02-23 19:41             ` Vivek Goyal
     [not found]             ` <20120223194109.GI19691-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-23 22:38               ` Tejun Heo
2012-02-23 22:38               ` Tejun Heo
2012-02-23 22:38                 ` Tejun Heo
2012-02-23  7:59       ` Li Zefan
2012-02-23  7:59         ` Li Zefan
     [not found]         ` <4F45F1F0.2010102-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2012-02-23 20:32           ` Vivek Goyal
2012-02-23 20:32             ` Vivek Goyal
2012-02-23  7:59       ` Li Zefan
2012-02-22 16:38   ` Vivek Goyal
2012-02-23  8:22   ` Li Zefan
2012-02-23  8:22     ` Li Zefan
     [not found]     ` <4F45F742.1060605-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2012-02-23 17:33       ` Tejun Heo
2012-02-23 17:33         ` Tejun Heo
2012-02-23 17:33       ` Tejun Heo
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
2012-03-03 14:26       ` Serge Hallyn
2012-03-03 14:26         ` Serge Hallyn
2012-03-05 11:37   ` Lennart Poettering
2012-03-05 11:37   ` Lennart Poettering
2012-03-05 11:37     ` Lennart Poettering
2012-03-12 22:10   ` Tejun Heo
2012-03-12 22:10   ` Tejun Heo
2012-03-12 22:10     ` Tejun Heo
     [not found]     ` <20120312221050.GG23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:22       ` Peter Zijlstra
2012-03-12 22:22       ` Peter Zijlstra
2012-03-12 22:22         ` Peter Zijlstra
2012-03-12 22:28         ` Tejun Heo
2012-03-12 22:28           ` Tejun Heo
     [not found]           ` <20120312222817.GI23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:31             ` Lennart Poettering
2012-03-12 22:31             ` Lennart Poettering
2012-03-12 22:31               ` Lennart Poettering
     [not found]               ` <20120312223113.GB18359-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-12 23:00                 ` Tejun Heo
2012-03-12 23:00                   ` Tejun Heo
     [not found]                   ` <20120312230020.GL23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 23:02                     ` Peter Zijlstra
2012-03-12 23:02                       ` Peter Zijlstra
2012-03-12 23:09                       ` Tejun Heo
2012-03-12 23:09                         ` Tejun Heo
2012-03-12 23:09                       ` Tejun Heo
2012-03-12 23:43                       ` Lennart Poettering
2012-03-12 23:43                         ` Lennart Poettering
2012-03-12 23:00                 ` Tejun Heo
2012-03-12 22:32             ` Peter Zijlstra
2012-03-12 22:32               ` Peter Zijlstra
2012-03-12 22:39               ` Tejun Heo
2012-03-12 22:39                 ` Tejun Heo
     [not found]                 ` <20120312223944.GJ23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:44                   ` Peter Zijlstra
2012-03-12 22:44                     ` Peter Zijlstra
2012-03-12 23:04                     ` Tejun Heo
2012-03-12 23:04                       ` Tejun Heo
     [not found]                       ` <20120312230416.GM23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-13 14:10                         ` Vivek Goyal
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 16:11                               ` C Anthony Risinger
     [not found]                               ` <CAGAVQTGus7LUWV3AdhAFy--gr=uJRWtSGjuP69-EckBiXy0qVg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-13 16:30                                 ` C Anthony Risinger
2012-03-13 16:30                                   ` C Anthony Risinger
2012-03-13 16:11                             ` C Anthony Risinger
2012-03-13 17:25                             ` Peter Zijlstra
2012-03-13 17:25                               ` Peter Zijlstra
2012-03-13 17:31                               ` Peter Zijlstra
2012-03-13 17:31                                 ` Peter Zijlstra
2012-03-13 10:11                     ` Glauber Costa
2012-03-13 10:11                       ` Glauber Costa
2012-03-13 10:11                     ` Glauber Costa
2012-03-12 22:39               ` Tejun Heo
2012-03-13 14:03             ` Vivek Goyal
2012-03-13 14:03               ` Vivek Goyal
     [not found]               ` <20120313140345.GC29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 15:59                 ` Tejun Heo
2012-03-13 15:59                 ` Tejun Heo
2012-03-13 15:59                   ` Tejun Heo
     [not found]                   ` <20120313155955.GB7349-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-16 23:14                     ` James Bottomley
2012-03-16 23:14                       ` James Bottomley
2012-03-16 23:14                     ` James Bottomley
2012-03-12 22:37       ` Serge Hallyn
2012-03-12 22:37         ` Serge Hallyn
2012-03-12 22:55         ` Tejun Heo
2012-03-12 22:55           ` Tejun Heo
2012-03-12 22:55         ` Tejun Heo
2012-03-12 22:37       ` Serge Hallyn
2012-03-13 13:49       ` Vivek Goyal [this message]
2012-03-13 13:49         ` Vivek Goyal
     [not found]         ` <20120313134922.GB29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 16:02           ` Tejun Heo
2012-03-13 16:02             ` Tejun Heo
2012-03-13 16:02           ` Tejun Heo
  -- strict thread matches above, loose matches on Subject: below --
2012-02-21 21:19 Tejun Heo

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