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SubjectRe: [QUICKLIST 1/5] Quicklists for page table pages V4
On Thu, 22 Mar 2007 23:28:41 -0700 (PDT) Christoph Lameter <clameter@sgi.com> wrote:

> 1. Proven code from the IA64 arch.
>
> The method used here has been fine tuned for years and
> is NUMA aware. It is based on the knowledge that accesses
> to page table pages are sparse in nature. Taking a page
> off the freelists instead of allocating a zeroed pages
> allows a reduction of number of cachelines touched
> in addition to getting rid of the slab overhead. So
> performance improves.

By how much?
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