From: Bernd Schubert <bernd-schubert@web.de>
To: linux-kernel@vger.kernel.org
Subject: Re: Interactive Usage of 2.6.0.test1 worse than 2.4.21
Date: Tue, 5 Aug 2003 14:52:02 +0200
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On Tuesday 05 August 2003 07:04, Martin Konold wrote:
> Hi,
>
> when using  2.6.0.test1 on a high end laptop (P-IV 2.2 GHz, 1GB RAM) I
> notice very significant slowdown in interactive usage compared to 2.4.21.
>
> The difference is most easily seen when switching folders in kmail. While
> 2.4.21 is instantaneous 2.6.0.test1 shows the clock for about 2-3 seconds.
>
> I am using maildir folders on reiserfs.
>
> Can anyone verify this behaviour?
>

Yes, I can definitely verify this, its not only related to kde/kmail, all 
other application are affected as well. Btw, I already upgraded to 
2.6.0-test2. 
Also, the slowdown seems to be related to hd-accessing/caching. My root-fs hd 
makes rather loud noises on accessing it -- with 2.6.0-testX the frequency of 
disk-accessing and so also the noise-level has dramatically increased 
compared to 2.4.x


So following the advices, I will try bk4 and mm4 and also will do the 

>CPU profiles, e.g.
>readprofile -n -m /boot/System.map-`uname -r` | sort -rn -k 1,1 | head -25
>Also logs of vmstat 1.

stuff.


Regards,	
	Bernd

-- 
Bernd Schubert
Physikalisch Chemisches Institut / Theoretische Chemie
Universit?t Heidelberg
INF 229
69120 Heidelberg
e-mail: bernd.schubert@pci.uni-heidelberg.de
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