From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270534AbTGZRAI (ORCPT ); Sat, 26 Jul 2003 13:00:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272549AbTGZRAI (ORCPT ); Sat, 26 Jul 2003 13:00:08 -0400 Received: from dsl-hkigw3g81.dial.inet.fi ([80.222.38.129]:41108 "EHLO uworld.dyndns.org") by vger.kernel.org with ESMTP id S270534AbTGZRAF (ORCPT ); Sat, 26 Jul 2003 13:00:05 -0400 Subject: Re: Reiser4 status: benchmarked vs. V3 (and ext3) From: Jussi Laako To: Yury Umanets Cc: linux-kernel@vger.kernel.org In-Reply-To: <1059203990.21910.13.camel@haron.namesys.com> References: <3F1EF7DB.2010805@namesys.com> <1059062380.29238.260.camel@sonja> <16160.4704.102110.352311@laputa.namesys.com> <1059093594.29239.314.camel@sonja> <16161.10863.793737.229170@laputa.namesys.com> <1059142851.6962.18.camel@sonja> <1059143985.19594.3.camel@haron.namesys.com> <1059181687.10059.5.camel@sonja> <1059203990.21910.13.camel@haron.namesys.com> Content-Type: text/plain Organization: Message-Id: <1059239696.3036.4.camel@vaarlahti.uworld> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 26 Jul 2003 20:14:57 +0300 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2003-07-26 at 10:19, Yury Umanets wrote: > > So basically we do have pretty powerful hardware with huge storage and > > memory and now need a FS which is fast and reliable even on flash > > memory. JFFS2 is nice but way too slow once one has bigger sizes. > > I think this is more then enough for running reiser4. Reiser4 is a linux > filesystem first of all, and linux is able to be ran on even worse > hardware then you have. Most Linux filesystems can't be used properly with flash devices because of unability to handle write errors caused by flash wearing out. FS should mark the block as bad and relocate the data. Some devices report "read correctly, but had ECC" and when such happens data should also be relocated to not worn-out place and block marked as bad. -- Jussi Laako