linux-kernel - Re: [QUICKLIST 1/5] Quicklists for page table pages V3

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Date:	Mon, 19 Mar 2007 16:53:29 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Christoph Lameter <clameter@....com>
Cc:	linux-mm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [QUICKLIST 1/5] Quicklists for page table pages V3

On Mon, 19 Mar 2007 15:37:16 -0800 (PST)
Christoph Lameter <clameter@....com> wrote:

> This patchset introduces an arch independent framework to handle lists
> of recently used page table pages to replace the existing (ab)use of the
> slab for that purpose.
> 
> 1. Proven code from the IA64 arch.

Has it been proven that quicklists are superior to simply going direct to the
page allocator for these pages?

Would it provide a superior solution if we were to a) stop zeroing out the
pte's when doing a fullmm==1 teardown and b) go direct to the page allocator
for these pages?
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