From: Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: 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,
Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@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: Thu, 23 Feb 2012 15:13:19 +0100 [thread overview]
Message-ID: <1330006399.11248.20.camel@twins> (raw)
In-Reply-To: <1329990094.24994.64.camel@twins>
On Thu, 2012-02-23 at 10:41 +0100, Peter Zijlstra wrote:
> If your complete control is % based then I would assume its a % of a %.
> Simple enough.
>
> If its bandwidth based then simply don't allow a child to consume more
> bandwidth than its parent, also simple.
>
> If your layman isn't capable of grokking that, he should stay the f*ck
> away from it.
Fact is, the scheduler does both these things, so there's absolutely no
reason for other controllers not to do so too. Its the only sensible
thing if you want hierarchy.
My utter disregard for cgroups comes from having to actually implement a
controller for them, its a frigging nightmare. The systemd retards
mandating all this nonsense for booting a machine is completely bonghit
inspired and hasn't made me feel any better about it.
next prev parent reply other threads:[~2012-02-23 14:13 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-21 21:19 [RFD] cgroup: about multiple hierarchies Tejun Heo
[not found] ` <20120221211938.GE12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-21 21:21 ` Tejun Heo
[not found] ` <20120221212106.GF12236-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-02-22 13:34 ` Glauber Costa
[not found] ` <4F44EEE4.2000809-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-02-23 7:45 ` Serge E. Hallyn
[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
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
[not found] ` <20120222154501.GA1693-oHC15RC7JGTpAmv0O++HtFaTQe2KTcn/@public.gmane.org>
2012-02-22 18:22 ` Tejun Heo
2012-02-27 17:46 ` Frederic Weisbecker
2012-02-22 16:38 ` Vivek Goyal
[not found] ` <20120222163858.GB4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-22 16:57 ` Vivek Goyal
[not found] ` <20120222165714.GC4128-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-02-22 18:43 ` Tejun Heo
2012-02-23 9:41 ` Peter Zijlstra
2012-02-23 14:13 ` Peter Zijlstra [this message]
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
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-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-01 21:02 ` Vivek Goyal
[not found] ` <20120301210213.GF13533-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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
2012-03-02 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-YqMYhexLQo31wTEvPJ5Q0F6hYfS7NtTn@public.gmane.org>
2012-03-05 19:58 ` Mike Galbraith
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
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
2012-02-22 18:33 ` Tejun Heo
[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
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 8:22 ` Li Zefan
[not found] ` <4F45F742.1060605-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
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
2012-03-05 11:37 ` Lennart Poettering
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 22:28 ` Tejun Heo
[not found] ` <20120312222817.GI23255-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-12 22:31 ` Lennart Poettering
[not found] ` <20120312223113.GB18359-kS5D54t9nk0aINubkmmoJbNAH6kLmebB@public.gmane.org>
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 23:09 ` Tejun Heo
2012-03-12 23:43 ` Lennart Poettering
2012-03-12 22:32 ` Peter Zijlstra
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 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
[not found] ` <CAGAVQTGus7LUWV3AdhAFy--gr=uJRWtSGjuP69-EckBiXy0qVg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
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
[not found] ` <20120313140345.GC29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 15:59 ` Tejun Heo
[not found] ` <20120313155955.GB7349-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-03-16 23:14 ` James Bottomley
2012-03-12 22:37 ` Serge Hallyn
2012-03-12 22:55 ` Tejun Heo
2012-03-13 13:49 ` Vivek Goyal
[not found] ` <20120313134922.GB29169-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-03-13 16:02 ` Tejun Heo
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