From owner-freebsd-geom@FreeBSD.ORG Tue Jun 20 20:53:12 2006 Return-Path: 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 9DCDA16A47A; Tue, 20 Jun 2006 20:53:12 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.FreeBSD.org (Postfix) with ESMTP id D05D243D53; Tue, 20 Jun 2006 20:53:11 +0000 (GMT) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id D3D4B51814; Tue, 20 Jun 2006 22:53:08 +0200 (CEST) Received: from localhost (dkb36.neoplus.adsl.tpnet.pl [83.24.5.36]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id 24F9F50EA7; Tue, 20 Jun 2006 22:53:00 +0200 (CEST) Date: Tue, 20 Jun 2006 22:50:22 +0200 From: Pawel Jakub Dawidek To: Phil Regnauld Message-ID: <20060620205022.GB8007@garage.freebsd.pl> References: <20060619131101.GD1130@garage.freebsd.pl> <20060620102910.GG27055@tetard.starbsd.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qlTNgmc+xy1dBmNv" Content-Disposition: inline In-Reply-To: <20060620102910.GG27055@tetard.starbsd.org> X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 User-Agent: mutt-ng/devel-r804 (FreeBSD) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-0.5 required=3.0 tests=BAYES_00,RCVD_IN_NJABL_DUL, RCVD_IN_SORBS_DUL autolearn=no version=3.0.4 Cc: freebsd-fs@FreeBSD.org, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jun 2006 20:53:12 -0000 --qlTNgmc+xy1dBmNv Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 20, 2006 at 12:29:10PM +0200, Phil Regnauld wrote: +> On Mon, Jun 19, 2006 at 03:11:01PM +0200, Pawel Jakub Dawidek wrote: +> >=20 +> > Copying one large file: +> > UFS: 8s +> > UFS+SU: 8s +> > gjournal(1): 16s +> > gjournal(2): 14s +>=20 +> This is very very interesting work! +>=20 +> I am definitely going to test this. +>=20 +> I know this is too early to ask considering the optimizations +> that can be done, but do you have any idea how this would perform +> compared to ReiserFS on similar operations as the ones you +> benchmarked ? No idea. I think ReiserFS is using only metadata journaling, but I don't know for sure. +> PS: is it me or is the patch missing a gjournal command, as invoked +> in your examples ? It is you:) gjournal(8) is implemented as shared library for geom(8) command, just like gconcat(8), gstripe(8), gmirror(8), graid3(8), geli(8), gnop(8), glabel(8) and gshsec(8). --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --qlTNgmc+xy1dBmNv Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFEmF+OForvXbEpPzQRAqUeAKCN+3d/HrYXz731kPvkf39DX9NX9ACeOwI2 Dc2MSZ4STzuYpZYc9lrLM50= =LvSB -----END PGP SIGNATURE----- --qlTNgmc+xy1dBmNv--