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Date:      Fri, 9 May 2008 11:59:11 +0200
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        Oliver Fromme <olli@fromme.com>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/kern subr_param.c
Message-ID:  <20080509095911.GE2480@garage.freebsd.pl>
In-Reply-To: <200805090956.m499uEvT007906@haluter.fromme.com>
References:  <20080509091228.GC2480@garage.freebsd.pl> <200805090956.m499uEvT007906@haluter.fromme.com>

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On Fri, May 09, 2008 at 11:56:14AM +0200, Oliver Fromme wrote:
>=20
> Pawel Jakub Dawidek wrote:
>  > On Fri, May 09, 2008 at 11:08:20AM +0200, Oliver Fromme wrote:
>  > > Pawel Jakub Dawidek wrote:
>  > >  >   Modified files:
>  > >  >     sys/kern             subr_param.c=3D20
>  > >  >   Log:
>  > >  >   - Export HZ value via kern.hz sysctl (this is the same name as =
for the
>  > >  >     loader tunable).
>  > >=20
>  > > It's probably just me, but I don't see the usefulness of
>  > > this.  The HZ value is already exported via kern.clockrate.
>  > > (I'm not saying the change is wrong, I'm just looking for
>  > > an explanation.)
>  >=20
>  > The reason for this change was that I was trying to recall what is
>  > the name of the tunable and I wasn't able to find it with simple
>  > "sysctl -a | grep hz". In an ideal world most of not all loader
>  > tunables should also be visible as read-only sysctls.
>=20
> Hm.  It was my understanding that the loader tunables
> are already exported via kenv(2), so typing "kenv"
> should include them all.  I was probably wrong, though.

Only the one that are set (eg. by hints or by you in loader.conf).
kenv(1) doesn't list all the tunables.

--=20
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd@FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

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