From: Frederic Weisbecker <fweisbec@gmail.com>
To: Christoph Lameter <cl@linux.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Gilad Ben-Yossef <gilad@benyossef.com>,
Thomas Gleixner <tglx@linutronix.de>,
Mike Frysinger <vapier@gentoo.org>,
linux-kernel@vger.kernel.org,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [RFC] Restrict kernel spawning of threads to a specified set of cpus.
Date: Thu, 12 Sep 2013 16:16:27 +0200 [thread overview]
Message-ID: <20130912141625.GA23357@somewhere> (raw)
In-Reply-To: <000001411282afa6-fe9c0543-0447-492b-991e-dc8214884b88-000000@email.amazonses.com>
On Thu, Sep 12, 2013 at 02:10:56PM +0000, Christoph Lameter wrote:
> On Thu, 12 Sep 2013, Frederic Weisbecker wrote:
>
> > Why not do this from userspace instead?
>
> Because the cpumasks are hardcoded in the kernel code.
>
Ok but you can change the affinity of a kthread from userspace, as
long as you define a cpu set that is among that kthread's cpus allowed.
next prev parent reply other threads:[~2013-09-12 14:16 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 20:07 [RFC] Restrict kernel spawning of threads to a specified set of cpus Christoph Lameter
2013-09-10 6:05 ` Gilad Ben-Yossef
2013-09-10 6:47 ` Mike Galbraith
2013-09-10 6:59 ` Gilad Ben-Yossef
2013-09-10 7:26 ` Mike Galbraith
2013-09-10 7:56 ` Gilad Ben-Yossef
2013-09-10 8:53 ` Mike Galbraith
2013-09-10 21:10 ` Christoph Lameter
2013-09-11 3:20 ` Mike Galbraith
2013-09-11 14:21 ` Christoph Lameter
2013-09-11 14:53 ` Mike Galbraith
2013-09-11 16:56 ` Christoph Lameter
2013-09-11 21:36 ` Frederic Weisbecker
2013-09-12 3:30 ` Mike Galbraith
2013-09-10 21:08 ` Christoph Lameter
2013-09-10 7:39 ` Rob Landley
2013-09-10 21:11 ` Christoph Lameter
2013-09-11 22:02 ` Frederic Weisbecker
2013-09-12 14:10 ` Christoph Lameter
2013-09-12 14:16 ` Frederic Weisbecker [this message]
2013-09-12 14:22 ` Christoph Lameter
2013-09-12 14:31 ` Frederic Weisbecker
2013-09-12 14:52 ` Christoph Lameter
2013-09-12 15:11 ` Frederic Weisbecker
2013-09-12 15:32 ` Christoph Lameter
2013-09-12 18:45 ` Frederic Weisbecker
2013-09-12 15:39 ` Paul E. McKenney
2013-09-12 18:35 ` Frederic Weisbecker
2013-09-12 18:51 ` Paul E. McKenney
2013-09-15 13:53 ` Gilad Ben-Yossef
[not found] ` <alpine.DEB.2.02.1309121030390.21473@gentwo.org>
2013-09-12 15:42 ` Christoph Lameter
2013-09-12 18:30 ` Frederic Weisbecker
2013-09-13 9:25 ` Peter Zijlstra
2013-09-13 13:54 ` Christoph Lameter
2013-09-13 14:40 ` Peter Zijlstra
2013-09-13 15:15 ` Christoph Lameter
[not found] ` <alpine.DEB.2.02.1309131010480.26487@gentwo.org>
2013-09-13 15:40 ` Christoph Lameter
2013-09-16 6:02 ` Peter Zijlstra
2013-09-13 13:45 ` Christoph Lameter
2013-09-13 14:04 ` Frederic Weisbecker
2013-09-13 14:25 ` Christoph Lameter
2013-09-15 13:47 ` Gilad Ben-Yossef
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