From owner-freebsd-geom@FreeBSD.ORG  Tue Jun 20 20:00:01 2006
Return-Path: <owner-freebsd-geom@FreeBSD.ORG>
X-Original-To: freebsd-geom@FreeBSD.org
Delivered-To: freebsd-geom@FreeBSD.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 595D416A47B;
	Tue, 20 Jun 2006 20:00:01 +0000 (UTC)
	(envelope-from delphij@delphij.net)
Received: from tarsier.geekcn.org (tarsier.geekcn.org [210.51.165.229])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D42FA43D6E;
	Tue, 20 Jun 2006 19:59:54 +0000 (GMT)
	(envelope-from delphij@delphij.net)
Received: from localhost (tarsier.geekcn.org [210.51.165.229])
	by tarsier.geekcn.org (Postfix) with ESMTP id 83BD3EB2D6D;
	Wed, 21 Jun 2006 03:59:53 +0800 (CST)
X-Virus-Scanned: amavisd-new at geekcn.org
Received: from tarsier.geekcn.org ([210.51.165.229])
	by localhost (mail.geekcn.org [210.51.165.229]) (amavisd-new,
	port 10024)
	with ESMTP id TI1VS5fYHhkY; Wed, 21 Jun 2006 03:59:48 +0800 (CST)
Received: from [192.168.1.9] (unknown [221.217.210.14])
	(using TLSv1 with cipher RC4-MD5 (128/128 bits))
	(No client certificate requested)
	by tarsier.geekcn.org (Postfix) with ESMTP id 8125EEB2D68;
	Wed, 21 Jun 2006 03:59:47 +0800 (CST)
From: Xin LI <delphij@delphij.net>
To: Pawel Jakub Dawidek <pjd@FreeBSD.org>
In-Reply-To: <20060620193630.GA8007@garage.freebsd.pl>
References: <20060619131101.GD1130@garage.freebsd.pl>
	<44984A91.8040805@rogers.com> <20060620193630.GA8007@garage.freebsd.pl>
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature";
	boundary="=-p+Mvcxbfi7F/bq0HN1Lm"
Organization: The FreeBSD Project
Date: Wed, 21 Jun 2006 03:59:46 +0800
Message-Id: <1150833586.24301.1.camel@spirit>
Mime-Version: 1.0
X-Mailer: Evolution 2.6.2 FreeBSD GNOME Team Port 
Cc: freebsd-fs@FreeBSD.org, Mike Jakubik <mikej@rogers.com>,
	freebsd-current@FreeBSD.org, freebsd-geom@FreeBSD.org
Subject: Re: Journaling UFS with gjournal.
X-BeenThere: freebsd-geom@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: GEOM-specific discussions and implementations
	<freebsd-geom.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-geom>
List-Post: <mailto:freebsd-geom@freebsd.org>
List-Help: <mailto:freebsd-geom-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-geom>,
	<mailto:freebsd-geom-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 20 Jun 2006 20:00:01 -0000


--=-p+Mvcxbfi7F/bq0HN1Lm
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

=E5=9C=A8 2006-06-20=E4=BA=8C=E7=9A=84 21:36 +0200=EF=BC=8CPawel Jakub Dawi=
dek=E5=86=99=E9=81=93=EF=BC=9A
> The performance impact is big for large files, because in theory we have
> to write the data twice.
> Yes, it eliminates need for SU, but there are reasons, that you still
> want to use SU, eg. for snapshots.

Em...  IIRC SU and snapshots are independent, no?

Cheers,
--=20
Xin LI <delphij delphij net>    http://www.delphij.net/

--=-p+Mvcxbfi7F/bq0HN1Lm
Content-Type: application/pgp-signature; name=signature.asc
Content-Description: =?UTF-8?Q?=E8=BF=99=E6=98=AF=E4=BF=A1=E4=BB=B6=E7=9A=84=E6=95=B0?=
	=?UTF-8?Q?=E5=AD=97=E7=AD=BE=E5=90=8D=E9=83=A8=E5=88=86?=

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (FreeBSD)

iD8DBQBEmFOyhcUczkLqiksRAvvIAKDL6Of+43Ocr7FgJWkvEyxAfDLl+QCgtAkb
wQ02zSKSY4O94UM7Uu6F15M=
=4olk
-----END PGP SIGNATURE-----

--=-p+Mvcxbfi7F/bq0HN1Lm--