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Date: Tue, 25 Sep 2012 18:24:53 +0200
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
To: Glen Barber <gjb@FreeBSD.org>
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Cc: freebsd-fs@FreeBSD.org, freebsd-current@FreeBSD.org
Subject: Re: ZFS TRIM support committed to HEAD.
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On Sun, Sep 23, 2012 at 08:20:41PM -0400, Glen Barber wrote:
> Hi Pawel,
>=20
> On Sun, Sep 23, 2012 at 09:53:58PM +0200, Pawel Jakub Dawidek wrote:
> > FYI, I just committed TRIM support to ZFS, especially useful for
> > SSD-only pools. This is something I implemented long time ago, but was
> > now motivated to get back to it and commit it finally by some great
> > fixes and improvements from the zfsonlinux project (made by Etienne
> > Dechamps).
> >=20
>=20
> Great!  Thanks for this.
>=20
> Any chance you can document the following sysctls?

None od the kstat sysctls are documented, they emulate kstat framework
=66rom Solaris. We would need to modify a lot of vendor code to document
those in 'sysctl -d' output. It still would be good to have them
documented even elsewhere, eventhough most are rather self-explanatory.

> root@kaos:/root # sysctl -d kstat.zfs.misc.zio_trim
> kstat.zfs.misc.zio_trim:=20
> kstat.zfs.misc.zio_trim.zio_trim_bytes:=20
> kstat.zfs.misc.zio_trim.zio_trim_success:=20
> kstat.zfs.misc.zio_trim.zio_trim_unsupported:=20
> kstat.zfs.misc.zio_trim.zio_trim_failed:=20

--=20
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://tupytaj.pl

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