Re: x86_64: Make sparsemem/vmemmap the default memory model

[Christoph Lameter]

On Mon, 12 Nov 2007, Ray Lee wrote:

> Discontig obviously needs to die. However, FlatMem is consistently
> faster, averaging about 2.1% better overall for your numbers above. Is
> the page allocator not, erm, a fast path, where that matters?
> 
> Order	Flat	Sparse	% diff
> 0	639	641	0.3

IMHO Order 0 currently matters most and the difference is negligible 
there.

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