From: Glauber Costa <glommer@parallels.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.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>,
Lennart Poettering <lennart@poettering.net>,
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: Tue, 13 Mar 2012 14:11:51 +0400 [thread overview]
Message-ID: <4F5F1D67.10001@parallels.com> (raw)
In-Reply-To: <1331592241.18960.64.camel@twins>
On 03/13/2012 02:44 AM, Peter Zijlstra wrote:
> On Mon, 2012-03-12 at 15:39 -0700, Tejun Heo wrote:
>> > If we can get to the point where nesting is fully
>> > supported by every controller first, that would be awesome too.
> As long as that is the goal.. otherwise, I'd be overjoyed if I can rip
> nesting support out of the cpu-controller.. that stuff is such a pain.
> Then again, I don't think the container people like this proposal --
> they were the ones pushing for full hierarchy back when.
Indeed. At some point it is desirable that an admin inside the container
be able to divide resources between the tasks they see.
Maybe it doesn't even make sense for things like I/O, for each he at
most has an illusion of control anyway. But cpu is a lot more tangible
resource in this regard.
WARNING: multiple messages have this Message-ID (diff)
From: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
To: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Li Zefan <lizf-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>,
Lennart Poettering
<lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>,
Frederic Weisbecker
<fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Michal Schmidt <mschmidt-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Tue, 13 Mar 2012 14:11:51 +0400 [thread overview]
Message-ID: <4F5F1D67.10001@parallels.com> (raw)
In-Reply-To: <1331592241.18960.64.camel@twins>
On 03/13/2012 02:44 AM, Peter Zijlstra wrote:
> On Mon, 2012-03-12 at 15:39 -0700, Tejun Heo wrote:
>> > If we can get to the point where nesting is fully
>> > supported by every controller first, that would be awesome too.
> As long as that is the goal.. otherwise, I'd be overjoyed if I can rip
> nesting support out of the cpu-controller.. that stuff is such a pain.
> Then again, I don't think the container people like this proposal --
> they were the ones pushing for full hierarchy back when.
Indeed. At some point it is desirable that an admin inside the container
be able to divide resources between the tasks they see.
Maybe it doesn't even make sense for things like I/O, for each he at
most has an illusion of control anyway. But cpu is a lot more tangible
resource in this regard.
next prev parent reply other threads:[~2012-03-13 10:13 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
2012-02-21 21:21 ` Tejun Heo
2012-02-21 21:21 ` Tejun Heo
2012-02-22 13:34 ` Glauber Costa
2012-02-22 13:34 ` Glauber Costa
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
[not found] ` <4F44EEE4.2000809-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-02-23 7:45 ` Serge E. Hallyn
2012-02-26 4:59 ` Konstantin Khlebnikov
2012-02-26 4:59 ` Konstantin Khlebnikov
[not found] ` <20120221212106.GF12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-22 13:34 ` Glauber Costa
2012-02-26 4:59 ` Konstantin Khlebnikov
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 16:38 ` Vivek Goyal
2012-02-22 16:38 ` Vivek Goyal
2012-02-22 16:57 ` Vivek Goyal
2012-02-22 16:57 ` Vivek Goyal
2012-02-22 18:43 ` Tejun Heo
2012-02-22 18:43 ` Tejun Heo
[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 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
2012-03-01 20:26 ` Mike Galbraith
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
2012-03-01 22:04 ` Mike Galbraith
2012-03-01 22:38 ` C Anthony Risinger
2012-03-01 22:38 ` C Anthony Risinger
[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
2012-03-02 10:51 ` Michal Schmidt
2012-03-02 11:52 ` Mike Galbraith
2012-03-02 11:52 ` Mike Galbraith
[not found] ` <4F50A63F.40306-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-02 11:52 ` Mike Galbraith
2012-03-05 12:43 ` Lennart Poettering
2012-03-05 12:43 ` Lennart Poettering
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
[not found] ` <20120305124310.GD10929-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-05 15:47 ` Mike Galbraith
[not found] ` <1330633603.7414.49.camel-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 21:02 ` Vivek Goyal
2012-03-02 2:43 ` Kay Sievers
2012-03-02 2:43 ` Kay Sievers
2012-03-02 10:15 ` Peter Zijlstra
2012-03-02 10:15 ` Peter Zijlstra
[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
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
2012-02-23 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
[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
[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
2012-02-23 8:22 ` Li Zefan
2012-02-23 8:22 ` Li Zefan
2012-02-23 17:33 ` Tejun Heo
2012-02-23 17:33 ` Tejun Heo
[not found] ` <4F45F742.1060605-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2012-02-23 17:33 ` Tejun Heo
2012-03-05 11:37 ` Lennart Poettering
2012-03-05 11:37 ` Lennart Poettering
[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
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
2012-02-27 17:46 ` Frederic Weisbecker
[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
2012-03-03 14:26 ` Serge Hallyn
2012-03-03 14:26 ` Serge Hallyn
[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
2012-03-12 22:10 ` Tejun Heo
2012-03-12 22:10 ` Tejun Heo
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
2012-03-12 22:31 ` Lennart Poettering
2012-03-12 22:31 ` Lennart Poettering
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
[not found] ` <20120312223113.GB18359-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-12 23:00 ` Tejun Heo
[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 22:32 ` 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
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
[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 17:25 ` Peter Zijlstra
2012-03-13 17:31 ` Peter Zijlstra
2012-03-13 17:31 ` Peter Zijlstra
2012-03-13 10:11 ` Glauber Costa [this message]
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
2012-03-13 15:59 ` Tejun Heo
2012-03-13 15:59 ` Tejun Heo
2012-03-16 23:14 ` James Bottomley
2012-03-16 23:14 ` James Bottomley
[not found] ` <20120313155955.GB7349-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-16 23:14 ` James Bottomley
[not found] ` <20120313140345.GC29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 15:59 ` Tejun Heo
[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
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
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
-- strict thread matches above, loose matches on Subject: below --
2012-02-21 21:19 Tejun Heo
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