From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@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>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@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 18:25:37 +0100 [thread overview]
Message-ID: <1331659537.18960.84.camel@twins> (raw)
In-Reply-To: <20120313141032.GD29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Tue, 2012-03-13 at 10:10 -0400, Vivek Goyal wrote:
> Implementing hierarchy is a pain and is expensive at run time.
Yeah, suck it up :-)
I would really rather we mandate one implementation standard for
controllers for the sake of consistency and uniformity. A direct result
of doing away with the multiple hierarchy crap is that all controllers
are co-mounted. Allowing differences like this just doesn't make any
sense.
So either we drop full hierarchy support from all controllers or we
deprecate and remove all non-hierarchical controllers.
I'm fine with either, but I'm not fine with with the half-arsed
solutions proposed here.
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Vivek Goyal <vgoyal@redhat.com>
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,
Michal Schmidt <mschmidt@redhat.com>
Subject: Re: [RFD] cgroup: about multiple hierarchies
Date: Tue, 13 Mar 2012 18:25:37 +0100 [thread overview]
Message-ID: <1331659537.18960.84.camel@twins> (raw)
In-Reply-To: <20120313141032.GD29169@redhat.com>
On Tue, 2012-03-13 at 10:10 -0400, Vivek Goyal wrote:
> Implementing hierarchy is a pain and is expensive at run time.
Yeah, suck it up :-)
I would really rather we mandate one implementation standard for
controllers for the sake of consistency and uniformity. A direct result
of doing away with the multiple hierarchy crap is that all controllers
are co-mounted. Allowing differences like this just doesn't make any
sense.
So either we drop full hierarchy support from all controllers or we
deprecate and remove all non-hierarchical controllers.
I'm fine with either, but I'm not fine with with the half-arsed
solutions proposed here.
next prev parent reply other threads:[~2012-03-13 17:25 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
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
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
2012-02-26 4:59 ` Konstantin Khlebnikov
2012-02-26 4:59 ` Konstantin Khlebnikov
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 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
2012-02-22 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
[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
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
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
2012-03-01 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 16:57 ` Vivek Goyal
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
2012-02-22 18:33 ` Tejun Heo
2012-02-23 7:59 ` Li Zefan
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 8:22 ` Li Zefan
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
2012-03-03 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
[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
[not found] ` <20120312223113.GB18359-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
2012-03-12 23:00 ` Tejun Heo
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 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
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
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 17:25 ` Peter Zijlstra [this message]
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
2012-03-13 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
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 22:10 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2012-02-21 21:19 Tejun Heo
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