From: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
mingo@kernel.org, pjt@google.com, paul@paulmenage.org,
akpm@linux-foundation.org, rjw@sisk.pl, nacc@us.ibm.com,
paulmck@linux.vnet.ibm.com, tglx@linutronix.de,
seto.hidetoshi@jp.fujitsu.com, rob@landley.net, tj@kernel.org,
mschmidt@redhat.com, berrange@redhat.com,
nikunj@linux.vnet.ibm.com, vatsa@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 0/7] CPU hotplug, cpusets: Fix issues with cpusets handling upon CPU hotplug
Date: Fri, 4 May 2012 14:30:11 -0700 [thread overview]
Message-ID: <20120504213010.GD3054@linux.vnet.ibm.com> (raw)
In-Reply-To: <1336164981.6509.72.camel@twins>
On 04.05.2012 [22:56:21 +0200], Peter Zijlstra wrote:
> On Fri, 2012-05-04 at 13:46 -0700, Nishanth Aravamudan wrote:
> > What about other users of cpusets (what are they?)?
>
> cpusets came from SGI, its traditionally used to partition _large_
> machines. Things like the batch/job-schedulers that go with that type of
> setup use it.
Yeah, I recall that usage (or some description similar). Do we have any
other known users of cpusets (beyond libvirt)?
> I've no clue why libvirt uses it (or why one would use libvirt for that
> matter).
Well, it is the case that libvirt does use it, and libvirt is used
pretty widely (or so it seems to me). I don't use it (cpusets or libvirt
:) either, but it seems like we should either tell libvirt directly that
cpusets are inappropriate for their use-case (once we figure out what
exactly that is, and why they chose cpusets) or work with them to
support their use-case?
Thanks,
Nish
--
Nishanth Aravamudan <nacc@us.ibm.com>
IBM Linux Technology Center
next prev parent reply other threads:[~2012-05-04 21:39 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-04 19:17 [PATCH v2 0/7] CPU hotplug, cpusets: Fix issues with cpusets handling upon CPU hotplug Srivatsa S. Bhat
2012-05-04 19:17 ` [PATCH v2 1/7] cpusets, hotplug: Implement cpuset tree traversal in a helper function Srivatsa S. Bhat
2012-05-04 19:18 ` [PATCH v2 2/7] cpusets, hotplug: Restructure functions that are invoked during hotplug Srivatsa S. Bhat
2012-05-04 19:18 ` [PATCH v2 3/7] cpusets: Introduce 'user_cpus_allowed' and rework the semantics of 'cpus_allowed' Srivatsa S. Bhat
2012-05-04 19:19 ` [PATCH v2 4/7] CPU hotplug, cpusets: Workout hotplug handling for cpusets Srivatsa S. Bhat
2012-05-04 19:19 ` [PATCH v2 5/7] Docs, cpusets: Update the cpuset documentation Srivatsa S. Bhat
2012-05-04 22:28 ` Rob Landley
2012-05-04 19:20 ` [PATCH v2 6/7] cpusets: Optimize the implementation of guarantee_online_cpus() Srivatsa S. Bhat
2012-05-04 19:20 ` [PATCH v2 7/7] cpusets: Remove out-dated comment about cpuset_track_online_cpus Srivatsa S. Bhat
2012-05-04 19:24 ` [PATCH v2 0/7] CPU hotplug, cpusets: Fix issues with cpusets handling upon CPU hotplug Peter Zijlstra
2012-05-04 19:58 ` Srivatsa S. Bhat
2012-05-04 20:14 ` Peter Zijlstra
2012-05-04 20:28 ` Peter Zijlstra
2012-05-04 20:49 ` Nishanth Aravamudan
2012-05-04 21:01 ` Peter Zijlstra
2012-05-04 21:27 ` Nishanth Aravamudan
2012-05-04 21:32 ` Peter Zijlstra
2012-05-04 21:34 ` Peter Zijlstra
2012-05-04 21:57 ` Nishanth Aravamudan
2012-05-04 21:38 ` Peter Zijlstra
2012-05-04 20:46 ` Nishanth Aravamudan
2012-05-04 20:56 ` Peter Zijlstra
2012-05-04 21:30 ` Nishanth Aravamudan [this message]
2012-05-04 21:44 ` Peter Zijlstra
2012-05-05 15:24 ` Alan Stern
2012-05-05 17:44 ` Paul E. McKenney
2012-05-05 18:56 ` Rafael J. Wysocki
2012-05-08 13:07 ` Daniel P. Berrange
2012-05-05 4:39 ` Mike Galbraith
2012-05-05 17:15 ` Srivatsa S. Bhat
2012-05-07 15:26 ` Jiang Liu
2012-05-09 9:12 ` Srivatsa S. Bhat
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