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From: Andreas Steinmetz <ast@domdv.de>
To: Gert Menke <gert@menke.za.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kapm-idled
Date: Wed, 05 Dec 2001 02:26:59 +0100 (CET)	[thread overview]
Message-ID: <XFMail.20011205022659.ast@domdv.de> (raw)
In-Reply-To: <20011204222407.D1772@mouse.mydomain>

Hi,
the problem is that kapm-idled and the idle task are both trying to handle the
system idle time. I did send a patch correcting this weird behaviour for
revision to Alan Cox a few days ago but until now there's no reaction from him.
Oh, and there's more problems with kapm-idled. Think of a task like kmix that
is ready to run every fraction of HZ to do some bookkeeping. Now look at the
kapm-idled code. If both run in sync, e.g. they are ready to run during the
same time slice kapm-idled will never do bios idle calls as there's always at
least one task ready to run and this is then accounted as a 'heavily loaded
system'.
If you want to have a look at the patch please let me know though it may take a
few days. I have to recover a system suffering from severe bit errors due to
a memory module having gone south very slowly and quiet.

On 04-Dec-2001 Gert Menke wrote:
> Hi,
> 
> On Tue, Dec 04, 2001 at 09:45:44PM +0100, Dave Jones wrote:
>> http://www.tux.org/lkml/#s14-1
> Sorry, I should have read the FAQ first.
> 
> But it is still annoying that kapm-idled claims to use that much system
> ressources when it isn't. When my system is idle it should say ~100% idle,
> not ~50% system. Right?
> Is there an easy way to fix this? Or a good reason not to?
> 
> Greetings
> Gert
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 

Andreas Steinmetz
D.O.M. Datenverarbeitung GmbH

  reply	other threads:[~2001-12-05  1:29 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-04 20:18 kapm-idled Gert Menke
2001-12-04 20:43 ` kapm-idled Robert Love
2001-12-04 20:45 ` kapm-idled Dave Jones
2001-12-04 21:24   ` kapm-idled Gert Menke
2001-12-05  1:26     ` Andreas Steinmetz [this message]
2001-12-05  9:07       ` kapm-idled Alan Cox
2001-12-05 15:00         ` kapm-idled Gert Menke

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