From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270656AbTG0DNF (ORCPT ); Sat, 26 Jul 2003 23:13:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270657AbTG0DNF (ORCPT ); Sat, 26 Jul 2003 23:13:05 -0400 Received: from h80ad2442.async.vt.edu ([128.173.36.66]:4246 "EHLO turing-police.cc.vt.edu") by vger.kernel.org with ESMTP id S270656AbTG0DND (ORCPT ); Sat, 26 Jul 2003 23:13:03 -0400 Message-Id: <200307270328.h6R3S3Kp014744@turing-police.cc.vt.edu> X-Mailer: exmh version 2.6.3 04/04/2003 with nmh-1.0.4+dev To: Daniel Egger Cc: Linux Kernel Mailinglist Subject: Re: Reiser4 status: benchmarked vs. V3 (and ext3) In-Reply-To: Your message of "Sat, 26 Jul 2003 17:21:37 +0200." <1059232897.10692.37.camel@sonja> From: Valdis.Kletnieks@vt.edu 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> <1059228808.10692.7.camel@sonja> <1059231274.28094.40.camel@haron.namesys.com> <1059232897.10692.37.camel@sonja> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_-929320262P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Sat, 26 Jul 2003 23:28:02 -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_-929320262P Content-Type: text/plain; charset=us-ascii On Sat, 26 Jul 2003 17:21:37 +0200, Daniel Egger said: > > Also reiserfs does not use compression, that would be very nice of it > > :), because flash has limited number of erase cycles per block (in range > > 100.000) > > I don't see what the compression has to do with the limited number of > erase/write cycles. It's a subtle point - let's say you have a 32K blob of data and a 4K block/ erase/whatever size on the flash. If you write it uncompressed, then 8 blocks are going to get an erase cycle. If however you can compress it down to 12K (not at all unusual for text), then only 3 blocks get an erase cycle, and the other 5 blocks get to live longer... --==_Exmh_-929320262P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQE/I0bCcC3lWbTT17ARArFDAJ9dqeOaejZZy7frPv7+6jNuoYxtmgCg7joF D6YzmxWxs248eghz6dpj6Bo= =+P9G -----END PGP SIGNATURE----- --==_Exmh_-929320262P--