From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753448Ab2DRQlM (ORCPT ); Wed, 18 Apr 2012 12:41:12 -0400 Received: from mailfw02.zoner.fi ([84.34.147.249]:54690 "EHLO mailfw02.zoner.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751533Ab2DRQlK (ORCPT ); Wed, 18 Apr 2012 12:41:10 -0400 Date: Wed, 18 Apr 2012 19:40:55 +0300 From: Lasse Collin To: Randy Dunlap Cc: qasdfgtyuiop , linux-kernel , Andrew Morton , alain@knaff.lu, albin.tonnerre@free-electrons.com, hpa@zytor.com Subject: Re: [PATCH] kconfig: update compression algorithm info Message-ID: <20120418194055.2d929e58@tukaani.org> In-Reply-To: <4F8DF90B.1090002@xenotime.net> References: <4F8DF90B.1090002@xenotime.net> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.10; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Antivirus-Scanner: Clean mail though you should still use an Antivirus Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2012-04-17 Randy Dunlap wrote: > There have been new compression algorithms added without > updating nearby relevant descriptive text that refers to > (a) the number of compression algorithms and (b) the most > recent one. Fix these inconsistencies. It could also be good to fix which algo has the best compression ratio. XZ supports BCJ filters on some archs and on those it will give a few percent smaller kernel than LZMA. Without BCJ, XZ and LZMA are practically tied. If you feel like it, maybe it would be nice to have some recommendations in the descriptions: - gzip is a safe choice if unsure what to do. - XZ is good when small size is important (embedded systems, live CDs). - LZO should give the fastest boot from a hard disk (desktop systems where file size doesn't matter much). -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode