Subject: Re: Load average calucation under NetBSD 2.0_BETA
To: None <netbsd-users@NetBSD.org>
From: Ignatios Souvatzis <ignatios@cs.uni-bonn.de>
List: netbsd-users
Date: 06/09/2004 11:49:54
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On Wed, Jun 09, 2004 at 09:39:57AM +0000, Matthias Scheler wrote:
> In article <20040609093416.GD23269@drowsy.duskware.de>,
> Martin Husemann <martin@duskware.de> writes:
> > On Wed, Jun 09, 2004 at 09:19:22AM +0000, Matthias Scheler wrote:
> >> load averages: 1.43, 1.27, 1.17 =
11:16:43
> >> 123 processes: 2 runnable, 120 sleeping, 1 on processor
> > 2 runnable processes - so expect some load.
>=20
> But the CPU was 99% idle.
>=20
> > For whatever value of "properly".
>=20
> I wouldn't expect a system idleing more than 90% of the time to report
> a load above 1.
Does your system have a seperate, mistuned statistics clock interupt? Else
a process that wakes up periodically to go to sleep again after a short time
can add substantial displayed load (1.0 more than the real one) - without
actually loading the machine hard.
Some versions of Ultrix used to show that behaviour excessively - I've=20
seen xload baselines of up to 4.0 .
Regards
-is
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