From owner-freebsd-stable@FreeBSD.ORG Sun Mar 30 18:57:26 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 547081065675 for ; Sun, 30 Mar 2008 18:57:26 +0000 (UTC) (envelope-from bright@elvis.mu.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.freebsd.org (Postfix) with ESMTP id 3A5F78FC2C for ; Sun, 30 Mar 2008 18:57:26 +0000 (UTC) (envelope-from bright@elvis.mu.org) Received: by elvis.mu.org (Postfix, from userid 1192) id 0361A1A4D8D; Sun, 30 Mar 2008 11:57:26 -0700 (PDT) Date: Sun, 30 Mar 2008 11:57:25 -0700 From: Alfred Perlstein To: freebsd-stable@freebsd.org Message-ID: <20080330185725.GI95731@elvis.mu.org> References: <20080330031017.GA32063@FS.denninger.net> <20080330090617.GH95731@elvis.mu.org> <20080330161702.GA8242@FS.denninger.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080330161702.GA8242@FS.denninger.net> User-Agent: Mutt/1.4.2.3i Subject: Re: gjournal.... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Mar 2008 18:57:26 -0000 * Karl Denninger [080330 09:17] wrote: > On Sun, Mar 30, 2008 at 02:06:17AM -0700, Alfred Perlstein wrote: > > > > If you're using a database then it shouldn't matter what meta data > > provider you use "all that much" with the exception of temporary > > tables. > > > > Basically, SU and gjournal both provide for meta data consistency, > > something that a database rarely needs as it rarely creates/deletes > > files often. > > > > I'm looking at this more from a performance standpoint. > > Is there a performance advantage to using gjournal over a "normal" UFS/UFS2 > filesystem with softupdates? I think that SU will be faster, but that's just a semi-educated guess. -- - Alfred Perlstein