From: Kay Sievers <kay@vrfy.org>
To: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>,
containers@lists.linux-foundation.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org, Neil Horman <nhorman@tuxdriver.com>,
Michal Hocko <mhocko@suse.cz>, Paul Mackerras <paulus@samba.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Johannes Weiner <hannes@cmpxchg.org>, Thomas Graf <tgraf@suug.ch>,
"Serge E. Hallyn" <serue@us.ibm.com>,
Paul Turner <pjt@google.com>, Ingo Molnar <mingo@redhat.com>,
Lennart Poettering <lennart@poettering.net>
Subject: Re: [RFC] cgroup TODOs
Date: Fri, 14 Sep 2012 23:51:06 +0200 [thread overview]
Message-ID: <CAPXgP13oHLt8pMJSJvbB9Q10h8zTfvFVb99d=za3Bu0BmyCZtg@mail.gmail.com> (raw)
In-Reply-To: <20120914192935.GO17747@google.com>
On Fri, Sep 14, 2012 at 9:29 PM, Tejun Heo <tj@kernel.org> wrote:
> On Fri, Sep 14, 2012 at 09:58:30AM -0400, Vivek Goyal wrote:
>> I am little concerned about above and wondering how systemd and libvirt
>> will interact and behave out of the box.
>>
>> Currently systemd does not create its own hierarchy under blkio and
>> libvirt does. So putting all together means there is no way to avoid
>> the overhead of systemd created hierarchy.
>>
>> \
>> |
>> +- system
>> |
>> +- libvirtd.service
>> |
>> +- virt-machine1
>> +- virt-machine2
>>
>> So there is now way to avoid the overhead of two levels of hierarchy
>> created by systemd. I really wish that systemd gets rid of "system"
>> cgroup and puts services directly in top level group. Creating deeper
>> hieararchices is expensive.
The idea here is to split equally between the "system" and the "user"s
at that level.
That all can be re-considered and changed if really needed, but it's
not an unintentionally created directory.
Thanks,
Kay
next prev parent reply other threads:[~2012-09-14 21:51 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-13 20:58 [RFC] cgroup TODOs Tejun Heo
2012-09-14 9:04 ` Mike Galbraith
2012-09-14 17:17 ` Tejun Heo
2012-09-14 9:10 ` Daniel P. Berrange
2012-09-14 13:58 ` Vivek Goyal
2012-09-14 19:29 ` Tejun Heo
2012-09-14 21:51 ` Kay Sievers [this message]
[not found] ` <5052E7DF.7040000@parallels.com>
2012-09-14 9:12 ` Li Zefan
2012-09-14 11:22 ` Peter Zijlstra
2012-09-14 17:59 ` Tejun Heo
2012-09-14 18:23 ` Peter Zijlstra
2012-09-14 18:33 ` Tejun Heo
2012-09-14 17:43 ` Tejun Heo
2012-09-17 8:50 ` Glauber Costa
2012-09-17 17:21 ` Tejun Heo
2012-09-14 11:15 ` Peter Zijlstra
2012-09-14 12:54 ` Daniel P. Berrange
2012-09-14 17:53 ` Tejun Heo
2012-09-14 14:25 ` Vivek Goyal
2012-09-14 14:53 ` Peter Zijlstra
2012-09-14 15:14 ` Vivek Goyal
2012-09-14 21:57 ` Tejun Heo
2012-09-17 15:27 ` Vivek Goyal
2012-09-18 18:08 ` Vivek Goyal
2012-09-14 21:39 ` Tejun Heo
2012-09-17 15:05 ` Vivek Goyal
2012-09-17 16:40 ` Tejun Heo
2012-09-14 15:03 ` Michal Hocko
2012-09-19 14:02 ` Michal Hocko
2012-09-19 14:03 ` [PATCH 2.6.32] memcg: warn on deeper hierarchies with use_hierarchy==0 Michal Hocko
2012-09-19 19:38 ` David Rientjes
2012-09-20 13:24 ` Michal Hocko
2012-09-20 22:33 ` David Rientjes
2012-09-21 7:16 ` Michal Hocko
2012-09-19 14:03 ` [PATCH 3.0] " Michal Hocko
2012-09-19 14:05 ` [PATCH 3.2+] " Michal Hocko
2012-09-14 18:07 ` [RFC] cgroup TODOs Vivek Goyal
2012-09-14 18:53 ` Tejun Heo
2012-09-14 19:28 ` Vivek Goyal
2012-09-14 19:44 ` Tejun Heo
2012-09-14 19:49 ` Tejun Heo
2012-09-14 20:39 ` Tejun Heo
2012-09-17 8:40 ` Glauber Costa
2012-09-17 17:30 ` Tejun Heo
2012-09-17 14:37 ` Vivek Goyal
2012-09-14 18:36 ` Aristeu Rozanski
2012-09-14 18:54 ` Tejun Heo
2012-09-15 2:20 ` Serge E. Hallyn
2012-09-15 9:27 ` Controlling devices and device namespaces Eric W. Biederman
2012-09-15 22:05 ` Serge E. Hallyn
2012-09-16 0:24 ` Eric W. Biederman
2012-09-16 3:31 ` Serge E. Hallyn
2012-09-16 11:21 ` Alan Cox
2012-09-16 11:56 ` Eric W. Biederman
2012-09-16 12:17 ` Eric W. Biederman
2012-09-16 13:32 ` Serge Hallyn
2012-09-16 14:23 ` Eric W. Biederman
2012-09-16 16:13 ` Alan Cox
2012-09-16 17:49 ` Eric W. Biederman
2012-09-16 16:15 ` Serge Hallyn
2012-09-16 16:53 ` Eric W. Biederman
2012-09-16 8:19 ` [RFC] cgroup TODOs James Bottomley
2012-09-16 14:41 ` Eric W. Biederman
2012-09-17 13:21 ` Aristeu Rozanski
2012-09-14 22:03 ` Dhaval Giani
2012-09-14 22:06 ` Tejun Heo
2012-09-20 1:33 ` Andy Lutomirski
2012-09-20 18:26 ` Tejun Heo
2012-09-20 18:39 ` Andy Lutomirski
2012-09-21 21:40 ` Tejun Heo
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