From: John Levon <levon@movementarian.org>
To: Andrew Morton <akpm@zip.com.au>
Cc: William Lee Irwin III <wli@holomorphy.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: page_add/remove_rmap costs
Date: Thu, 25 Jul 2002 06:15:52 +0100 [thread overview]
Message-ID: <20020725051552.GA48429@compsoc.man.ac.uk> (raw)
In-Reply-To: <3D3F893D.4074CDE5@zip.com.au>
On Wed, Jul 24, 2002 at 10:14:37PM -0700, Andrew Morton wrote:
> > c0135667 1095488 16.8865 .text.lock.page_alloc /boot/vmlinux-2.5.28-3
>
> zone->lock?
I wrote a patch some time ago to remove all this guesswork on lock call
sites :
http://marc.theaimsgroup.com/?l=linux-kernel&m=101586797421268&w=2
It seemed to work quite well with my limited testing on my 2-way ...
(pity it macrofies stuff)
> > c0112a84 213189 3.28622 load_balance /boot/vmlinux-2.5.28-3
>
> I thought you'd disabled this?
Maybe wli used "op_session", and this was from a previous run. oprofile
< 0.3 had a bug where the vmlinux samples file wasn't moved.
regards
john
--
"Hungarian notation is the tactical nuclear weapon of source code obfuscation
techniques."
- Roedy Green
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next prev parent reply other threads:[~2002-07-25 5:15 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-24 6:33 Andrew Morton
2002-07-24 6:48 ` William Lee Irwin III
2002-07-24 16:24 ` Rik van Riel
2002-07-24 20:15 ` Andrew Morton
2002-07-24 20:21 ` Rik van Riel
2002-07-24 20:28 ` Andrew Morton
2002-07-25 2:35 ` Rik van Riel
2002-07-25 3:08 ` William Lee Irwin III
2002-07-25 3:14 ` Martin J. Bligh
2002-07-25 4:21 ` Andrew Morton
2002-07-25 2:45 ` William Lee Irwin III
2002-07-25 4:50 ` William Lee Irwin III
2002-07-25 5:14 ` Andrew Morton
2002-07-25 5:15 ` John Levon [this message]
2002-07-25 5:30 ` William Lee Irwin III
2002-07-25 5:47 ` Andrew Morton
2002-07-25 5:42 ` William Lee Irwin III
2002-07-25 5:59 ` Andrew Morton
2002-07-25 7:09 ` Andrew Morton
2002-07-26 7:33 ` Daniel Phillips
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