From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262967AbVFXBD2 (ORCPT ); Thu, 23 Jun 2005 21:03:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262969AbVFXBD2 (ORCPT ); Thu, 23 Jun 2005 21:03:28 -0400 Received: from rwcrmhc14.comcast.net ([216.148.227.89]:31225 "EHLO rwcrmhc14.comcast.net") by vger.kernel.org with ESMTP id S262967AbVFXBDH (ORCPT ); Thu, 23 Jun 2005 21:03:07 -0400 Message-ID: <42BB5BC3.7000902@namesys.com> Date: Thu, 23 Jun 2005 18:02:59 -0700 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.5) Gecko/20041217 X-Accept-Language: en-us, en MIME-Version: 1.0 To: David Masover CC: Horst von Brand , Jeff Garzik , Christoph Hellwig , Andrew Morton , linux-kernel@vger.kernel.org, ReiserFS List Subject: Re: reiser4 plugins References: <200506231924.j5NJOvLA031008@laptop11.inf.utfsm.cl> <42BB31E9.50805@slaphack.com> In-Reply-To: <42BB31E9.50805@slaphack.com> X-Enigmail-Version: 0.90.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org David Masover wrote: > > > But, there are some things Reiser does better and faster than ext3, even > if you don't count file-as-directory and other toys. There's nothing > ext3 does better than Reiser, unless you count the compatibility with > random bootloaders and low-level tools. In fairness, there are some things that I am aware of. In Reiser4 fsync performance needs optimizing, truly random modifications and anything else that write twice logging is best for needs optimizing, workloads dominated by dirtying more mmap'd pages than can fit into RAM need optimizing. > > >> Not everyone will want > >>to reformat at once, but as the reiser4 code matures and proves itself > >>(even more than it already has), > > > >I for one have seen mainly people with wild claims that it will make > their > >machines much faster, and coming back later asking how they can recover > >their thrashed partitions... > > > You know how many I've had thrashed on Reiser4? Two. The first one was > with a VERY early alpha/beta, and the second one was when I dropped a > laptop and the disk failed. > > And it does make certain things faster. For one thing, "emerge sync" on > Gentoo is twice to four times as fast, and /usr/portage is 75% as big, > as on ReiserFS (3). Wow. You know, Nikita complains about my benchmarks, but what I usually hear from users is that their performance when they use their favorite app is mostly similar to my benchmarks. I would be really happy if our compression code was working before we went in. Half the space and thus twice the speed to disk. Edward could use some help with it. If only we could work on that plus fsync plus mmap dirtying plus random modification optimized journaling rather than these flamefests. Hans