linux-kernel - Re: Missing recalculation of scheduler tunables in case of cpu hot add/remove

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Message-ID: <1259252892.31676.220.camel@laptop>
Date:	Thu, 26 Nov 2009 17:28:12 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Christian Ehrhardt <ehrhardt@...ux.vnet.ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Holger.Wolf@...ibm.com, epasch@...ibm.com,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: Missing recalculation of scheduler tunables in case of cpu hot
 add/remove

On Thu, 2009-11-26 at 17:25 +0100, Christian Ehrhardt wrote:
> > Aside from that, we probably should put an upper limit in place, as I
> > guess large cpu count machines get silly large values
> I agree to that, but in the code is already an upper limit of 
> 200.000.000 - well we might discuss if that is too low/high.

Yeah, I think we should cap it around the 8-16 CPUs.

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