From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754158Ab3KNONv (ORCPT ); Thu, 14 Nov 2013 09:13:51 -0500 Received: from mail-ie0-f172.google.com ([209.85.223.172]:33272 "EHLO mail-ie0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753817Ab3KNONn (ORCPT ); Thu, 14 Nov 2013 09:13:43 -0500 Message-ID: <5284DA98.1060402@gmail.com> Date: Thu, 14 Nov 2013 09:13:44 -0500 From: Austin S Hemmelgarn User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Christian Ruppert , Pavel Roskin CC: linux-kernel@vger.kernel.org, Andrew Morton , "H. Peter Anvin" , Vineet Gupta , Noam Camus Subject: Re: Uncompressed kernel doesn't build on x86_64 References: <20131113113418.167b8ffd@IRBT4585> <20131114083247.GB9687@ab42.lan> In-Reply-To: <20131114083247.GB9687@ab42.lan> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2013-11-14 03:32, Christian Ruppert wrote: > 2. A patch to enable uncompressed x86 kernels. As stated above, I don't > think this makes a lot of sense in itself but it might serve as an > example for people working on other platforms with self-extracting > kernels and the nozip not-decompression algorithm might be useful on > those platforms as well. I only had a single x86-64 machine available > to test this, however, so some more testing might be required. I disagree with the argument that an uncompressed x86 kernel doesn't make sense, If you have a very fast boot device, then it is fully conceivable that an uncompressed kernel could boot faster than a compressed one. I have seen a very large number of systems where the LZO compression boots at least twice as fast as gzip or bz2 (because the disks are fast enough that a few megabytes of size difference make much less of an impact than a slow decompressor).