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From: Michal Hocko <mhocko@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
	Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Mel Gorman <mgorman@techsingularity.net>,
	Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH] sched: Fix numabalancing to work with isolated cpus
Date: Thu, 6 Apr 2017 12:13:49 +0200	[thread overview]
Message-ID: <20170406101348.GH5497@dhcp22.suse.cz> (raw)
In-Reply-To: <20170406092329.52zzkxlkvitnh44c@hirez.programming.kicks-ass.net>

On Thu 06-04-17 11:23:29, Peter Zijlstra wrote:
> On Thu, Apr 06, 2017 at 09:34:36AM +0200, Michal Hocko wrote:
[...]
> > I would really like to see it confirmed by the scheduler maintainers and
> > documented properly as well. What you are claiming here is rather
> > surprising to my understanding of what isolcpus acutally is.
> 
> isolcpus gets you a set of fully partitioned CPUs. What's surprising
> about that?

Well, I thought that all isolated cpus simply form their own scheduling
domain which is isolated from the general workload on the system
(kthreads, softirqs etc...).

-- 
Michal Hocko
SUSE Labs

  reply	other threads:[~2017-04-06 10:14 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-04 17:27 Srikar Dronamraju
2017-04-04 18:56 ` Rik van Riel
2017-04-04 20:37 ` Mel Gorman
2017-04-05  1:50   ` Srikar Dronamraju
2017-04-05  8:09     ` Mel Gorman
2017-04-05 12:57 ` Michal Hocko
2017-04-05 15:22   ` Srikar Dronamraju
2017-04-05 16:44     ` Michal Hocko
2017-04-06  7:19       ` Srikar Dronamraju
2017-04-06  7:34         ` Michal Hocko
2017-04-06  9:23           ` Peter Zijlstra
2017-04-06 10:13             ` Michal Hocko [this message]
2017-04-06 10:29               ` Peter Zijlstra
2017-04-06 10:42                 ` Michal Hocko
2017-04-06 10:47                   ` Peter Zijlstra
2017-04-06 13:44                     ` Michal Hocko
2017-04-06  7:36 ` Mike Galbraith
2017-04-06  7:36 ` Peter Zijlstra

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