linux-kernel - Re: [RFC] i386: Remove page sized slabs for pgds and pmds

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Message-ID: <20070329011751.GC17334@kvack.org>
Date:	Wed, 28 Mar 2007 21:17:51 -0400
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Christoph Lameter <clameter@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	William Lee Irwin III <wli@...omorphy.com>
Subject: Re: [RFC] i386: Remove page sized slabs for pgds and pmds

On Wed, Mar 28, 2007 at 02:05:54PM -0700, Christoph Lameter wrote:
> Tried this also on x86_64 with an enhanced quicklist patch that also deals 
> with ptes (at the price of not guaranteeing the free after the tlb flush):
...
> Seems that there is a slight benefit but its also barely above noise 
> level.

You're not running a test that will show any benefit in this area.  Run 
some heavy shell scripts or lmbench's fork() and exec() latency tests 
to get real numbers.

		-ben
-- 
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