From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 27 12:51:53 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 12FCD1065673 for ; Wed, 27 Feb 2008 12:51:53 +0000 (UTC) (envelope-from joerg@britannica.bec.de) Received: from www.pkgsrc-box.org (www.ostsee-abc.de [62.206.222.50]) by mx1.freebsd.org (Postfix) with ESMTP id DF80E8FC17 for ; Wed, 27 Feb 2008 12:51:47 +0000 (UTC) (envelope-from joerg@britannica.bec.de) Received: from britannica.bec.de (www.pkgsrc-box.org [127.0.0.1]) by www.pkgsrc-box.org (Postfix) with ESMTP id 39F72E7A3E0 for ; Wed, 27 Feb 2008 12:51:44 +0000 (UTC) Received: by britannica.bec.de (Postfix, from userid 1000) id 1F0C8175D0; Wed, 27 Feb 2008 13:50:48 +0100 (CET) Date: Wed, 27 Feb 2008 13:50:48 +0100 From: Joerg Sonnenberger To: freebsd-hackers@freebsd.org Message-ID: <20080227125048.GE352@britannica.bec.de> Mail-Followup-To: freebsd-hackers@freebsd.org References: <20080225154455.4822e72a@bhuda.mired.org> <47C33384.6040701@dial.pipex.com> <200802252243.m1PMhTeq016201@fire.js.berklix.net> <47C3A228.7090703@freebsd.org> <20080226202853.GA859@britannica.bec.de> <20080226160000.624c5d0f@bhuda.mired.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080226160000.624c5d0f@bhuda.mired.org> User-Agent: Mutt/1.5.16 (2007-06-09) Subject: Re: emulate an end-of-media X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Feb 2008 12:51:53 -0000 On Tue, Feb 26, 2008 at 04:00:00PM -0500, Mike Meyer wrote: > On Tue, 26 Feb 2008 21:28:53 +0100 Joerg Sonnenberger wrote: > > On Tue, Feb 26, 2008 at 07:44:48PM +0100, Martin Laabs wrote: > > > I also made a comparison between gzip and bzip2 regarding > > > the compression ratio on a dump of my home directory (3.2GB) > > > bzip2 took about 74min to compress, gzip only 11minutes. And > > > in terms of compression ratio bzip2 was only 3% better than > > > gzip. > > That's not a realistic test case. bzip2 normally takes trice the time > > and compresses 10% better. I can't comment on compress. > > Considering we're talking about compression methods to use on dump > output, that would seem to be the definition of a "realistic test > case". Telling us what it "normally" does without defining what input > is considered "normal" doesn't help much. Source code in my case and various other documents. The test case above certainly was not normal. Joerg