From owner-freebsd-hackers@FreeBSD.ORG Thu Mar 6 16:37:52 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 EEA641065670 for ; Thu, 6 Mar 2008 16:37:52 +0000 (UTC) (envelope-from obrien@NUXI.org) Received: from dragon.nuxi.org (trang.nuxi.org [74.95.12.85]) by mx1.freebsd.org (Postfix) with ESMTP id CE49E8FC1E for ; Thu, 6 Mar 2008 16:37:52 +0000 (UTC) (envelope-from obrien@NUXI.org) Received: from dragon.nuxi.org (obrien@localhost [127.0.0.1]) by dragon.nuxi.org (8.14.1/8.14.1) with ESMTP id m26Gbqkf090233 for ; Thu, 6 Mar 2008 08:37:52 -0800 (PST) (envelope-from obrien@dragon.nuxi.org) Received: (from obrien@localhost) by dragon.nuxi.org (8.14.2/8.14.1/Submit) id m26GbqF2090232 for freebsd-hackers@freebsd.org; Thu, 6 Mar 2008 08:37:52 -0800 (PST) (envelope-from obrien) Date: Thu, 6 Mar 2008 08:37:52 -0800 From: "David O'Brien" To: freebsd-hackers@freebsd.org Message-ID: <20080306163752.GD89327@dragon.NUXI.org> Mail-Followup-To: obrien@freebsd.org, 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080226202853.GA859@britannica.bec.de> X-Operating-System: FreeBSD 8.0-CURRENT 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 Reply-To: obrien@freebsd.org List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Mar 2008 16:37:53 -0000 On Tue, Feb 26, 2008 at 09:28:53PM +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. Actually I've found that it depends on which architecture you run bzip2 and gzip on. Taking a sample set of files, I found bzip2 was faster on amd64 than gzip; and gzip was faster on i386 than bzip2. [its been a while... I might have the two reversed] -- -- David (obrien@FreeBSD.org) Q: Because it reverses the logical flow of conversation. A: Why is top-posting (putting a reply at the top of the message) frowned upon? Let's not play "Jeopardy-style quoting"