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From: Christian Borntraeger <linux-kernel@borntraeger.net>
To: Joerg Sommrey <jo175@sommrey.de>
Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Bug? Load avg 2.0 when idle.
Date: Sun, 24 Oct 2004 20:45:04 +0200	[thread overview]
Message-ID: <200410242045.04901.linux-kernel@borntraeger.net> (raw)
In-Reply-To: <20041024182918.GA12532@sommrey.de>

Joerg Sommrey wrote:
> there is a load average of 2.0+ even if the box is almost idle. (i.e.
> "top" shows just one running process: top itself.) Starting two
> cpu-intensive processes raises the load average to 4.0+.  How can I
> determine the source for the high load, or is this a bug?
> I'm running 2.6.9 on a dual-athlon box.

Besides other possibilities, a bug in the kernel could be the cause. 
Please check if any process (one or two) is in uninterruptible sleep. 
(using ps axl the state is D)
Furthermore, Magic SysRequest+T (alt-print-t) and the dmesg output could 
give some hints.
If there is nothing suspicious you might try some profiling tool, e.g. 
OProfile. 

There was another bug report about a wrap around load average. I dont know 
if both reports are related. 

cheers

Christian


  parent reply	other threads:[~2004-10-24 18:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-24 18:29 Bug? Load avg 2.0 when idle Joerg Sommrey
2004-10-24 18:43 ` Jan Knutar
2004-10-24 18:45 ` Christian Borntraeger [this message]
2004-10-24 18:54   ` Jan Engelhardt
2004-10-24 18:59   ` Joerg Sommrey

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