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From: Daniel Phillips <phillips@bonn-fries.net>
To: Andrea Arcangeli <andrea@suse.de>,
        "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
Subject: Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?]
Date: Wed, 1 May 2002 17:42:40 +0200
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Cc: Russell King <rmk@arm.linux.org.uk>, linux-kernel@vger.kernel.org
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On Thursday 02 May 2002 17:35, Andrea Arcangeli wrote:
> On Thu, May 02, 2002 at 08:18:33AM -0700, Martin J. Bligh wrote:
> > At the moment I use the contig memory model (so we only use discontig for
> > NUMA support) but I may need to change that in the future.
> 
> I wasn't thinking at numa-q, but regardless numa-Q fits perfectly into
> the current discontigmem-numa model too as far I can see.

No it doesn't.  The config_discontigmem model forces all zone_normal memory
to be on node zero, so all the remaining nodes can only have highmem locally.
Even with good cache hardware, this has to hurt.

-- 
Daniel