linux-kernel - Re: Are we properly prepared to handle 3 Socket setups?

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Message-ID: <20070812084112.GL6002@1wt.eu>
Date:	Sun, 12 Aug 2007 10:41:12 +0200
From:	Willy Tarreau <w@....eu>
To:	Rene Herman <rene.herman@...il.com>
Cc:	Jesper Juhl <jesper.juhl@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Are we properly prepared to handle 3 Socket setups?

On Sun, Aug 12, 2007 at 03:27:58AM +0200, Rene Herman wrote:
> On 08/12/2007 03:08 AM, Jesper Juhl wrote:
> 
> >This may be a little off topic, but I think it's interresting enough
> >to warrent a single mail.
> >
> >I just saw a news article (http://www.theinquirer.net/?article=41610)
> >about a 3 Socket Opteron motherboard and couldn't help but wonder if
> >we are prepared to deal with such a beast, so I thought I'd inform
> >everyone :-)
> >
> >I'm guessing equipping such a board with 3 single core CPU's could
> >show up some interresting corner cases in schedular code and
> >elsewhere, I'll bet we have some assumptions somewhere about
> >nr_of_cpus being an even number...
> 
> I would hope the N=1 case will have flushed out enough of those... :-|

Well, 1 could be seen as even number in base 2, it's 2^0 and has only
one bit set.

Willy

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