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Date: Sun, 1 May 2011 15:37:52 +0200
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
To: Alexander Leidinger <Alexander@Leidinger.net>
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Cc: freebsd-fs@freebsd.org, Alexander Motin <mav@FreeBSD.org>
Subject: Re: TRIM clustering
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On Sun, May 01, 2011 at 12:06:56AM +0200, Alexander Leidinger wrote:
> On Sat, 30 Apr 2011 00:28:31 -0700 Jeremy Chadwick
> <freebsd@jdc.parodius.com> wrote:
>=20
> > On Sat, Apr 30, 2011 at 09:54:02AM +0300, Alexander Motin wrote:
>=20
> > Other notes: TRIM needs to be supported on swap as well, and in my
> > opinion this is just as important as it being in UFS.  I'm not sure
> > how one would implement that.
>=20
> This brings up the question if a ZFS cache (where the contents do not
> survive a reboot) is completely TRIMmed before used (and normally
> trimmed during use)...

It is not trimmed at all.

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

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