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Date:      Mon, 16 Sep 2002 09:40:33 +0100
From:      Josef Karthauser <joe@FreeBSD.org>
To:        David O'Brien <obrien@FreeBSD.org>, Poul-Henning Kamp <phk@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/kern kern_timeout.c
Message-ID:  <20020916084033.GB3565@genius.tao.org.uk>
In-Reply-To: <20020916025309.GA864@dragon.nuxi.com>
References:  <200209042005.g84K50Rs023388@freefall.freebsd.org> <20020916025309.GA864@dragon.nuxi.com>

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On Sun, Sep 15, 2002 at 07:53:09PM -0700, David O'Brien wrote:
> On Wed, Sep 04, 2002 at 01:05:00PM -0700, Poul-Henning Kamp wrote:
> > phk         2002/09/04 13:05:00 PDT
> >=20
> >   Modified files:
> >     sys/kern             kern_timeout.c=20
> >   Log:
> >   Under DIAGNOSTIC, complain if a timeout(9) routine took more than 1ms=
ec.
> >  =20
> >   Revision  Changes    Path
> >   1.73      +23 -4     src/sys/kern/kern_timeout.c
> > http://cvsweb.freebsd.org/src/sys/kern/kern_timeout.c.diff?r1=3D1.72&r2=
=3D1.73
>=20
> I assume you wanted this output for something.  Here is the first 10 and
> last 2 of the 4468 I got after booting only 6 minutes.
>=20
> Sep 15 19:40:26 kernel: Expensive timeout(9) function: 0xc65dfc80(0xc659f=
000) 0.008711721
> Sep 15 19:40:26 kernel: Expensive timeout(9) function: 0xc65dfc80(0xc659f=
000) 0.001068850

The USB ethernet subsystem is guilty as hell of this... :(.

Joe
--=20
"As far as the laws of mathematics refer to reality, they are not certain;
and as far as they are certain, they do not refer to reality." - Albert
Einstein, 1921

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