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Date: Thu, 15 Nov 2007 14:12:12 -0800 From: Andrew Morton <akpm@...ux-foundation.org> To: Christoph Lameter <clameter@....com> Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org, mel@....ul.ie, ak@...e.de, apw@...dowen.org Subject: Re: x86_64: Make sparsemem/vmemmap the default memory model On Mon, 12 Nov 2007 19:42:31 -0800 (PST) Christoph Lameter <clameter@....com> wrote: > x86_64: Make sparsemem/vmemmap the default memory model > > Use sparsemem as the only memory model for UP, SMP and NUMA. > Measurements indicate that DISCONTIGMEM has a higher overhead > than sparsemem. And FLATMEMs benefits are minimal. So I think its > best to simply standardize on sparsemem. Unfortunately some loon has gone and merged the i386 and x86_64 Kconfig files. I was fixing that up but I worry what effects these Kconfig changes might have on, for example, i386 NUMA setups. So I'll duck this version, sorry. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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