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Date: Tue, 24 Feb 2004 15:20:33 -0800
From: Andrew Morton <akpm@osdl.org>
To: Ron Peterson <rpeterso@MtHolyoke.edu>
Cc: davem@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: network / performance problems
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Ron Peterson <rpeterso@MtHolyoke.edu> wrote:
>
> I haven't done kernel profiling before.  Did a little googling and this is
> what I think I know (2.4.x)
> 
> In lilo.conf, do append="profile=2" (is 2 a good number?)
> reboot
> echo > /proc/profile
> readprofile -m System.map-2.4.24 (or whatever)

Do this:

- boot with `profile=1'

- make sure that /boot/System.map pertains to the currently-running kernel

sudo readprofile -r
sudo readprofile -M10
sleep 60
sudo readprofile -n -v -m /boot/System.map | sort -n +2 > prof.out