From: Peter Zijlstra <peterz@infradead.org>
To: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Holger.Wolf@de.ibm.com, epasch@de.ibm.com
Subject: Re: Missing recalculation of scheduler tunables in case of cpu hot add/remove
Date: Thu, 26 Nov 2009 17:22:25 +0100 [thread overview]
Message-ID: <1259252545.31676.210.camel@laptop> (raw)
In-Reply-To: <4B0EA88E.3030205@linux.vnet.ibm.com>
On Thu, 2009-11-26 at 17:10 +0100, Christian Ehrhardt wrote:
> We might store the corresponding 1cpu values in hidden variables and
> rescale the effective ones on every cpu add/remove.
> Additionally there would be the need for some logic to update the
> corresponding 1cpu values every time a user sets new values via the proc
> interface.
If you're going to do something like that, setting it based on the
number of cpus in the root_domain might be a better solution.
prev parent reply other threads:[~2009-11-26 16:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-26 16:10 Missing recalculation of scheduler tunables in case of cpu hot add/remove Christian Ehrhardt
2009-11-26 16:19 ` Peter Zijlstra
2009-11-26 16:25 ` Christian Ehrhardt
2009-11-26 16:28 ` Peter Zijlstra
2009-11-26 16:31 ` Christian Ehrhardt
2009-11-26 16:45 ` Peter Zijlstra
2009-11-26 18:39 ` Christian Ehrhardt
2009-11-26 18:53 ` Peter Zijlstra
2009-12-03 9:12 ` Pavel Machek
2009-12-03 9:31 ` Christian Ehrhardt
2009-11-26 16:22 ` Peter Zijlstra [this message]
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