From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271350AbTGWWNQ (ORCPT ); Wed, 23 Jul 2003 18:13:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271360AbTGWWNP (ORCPT ); Wed, 23 Jul 2003 18:13:15 -0400 Received: from willy.net1.nerim.net ([62.212.114.60]:5650 "EHLO www.home.local") by vger.kernel.org with ESMTP id S271350AbTGWWNL (ORCPT ); Wed, 23 Jul 2003 18:13:11 -0400 Date: Thu, 24 Jul 2003 00:27:47 +0200 From: Willy Tarreau To: Bernardo Innocenti Cc: Christoph Hellwig , uClinux development list , linux-kernel@vger.kernel.org Subject: Re: [uClinux-dev] Kernel 2.6 size increase Message-ID: <20030723222747.GF643@alpha.home.local> References: <200307232046.46990.bernie@develer.com> <20030723193246.GA836@lst.de> <200307232357.25128.bernie@develer.com> <200307240007.15377.bernie@develer.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200307240007.15377.bernie@develer.com> User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi ! On Thu, Jul 24, 2003 at 12:07:15AM +0200, Bernardo Innocenti wrote: > text data bss dec hex filename > 633028 37952 134260 805240 c4978 linux-2.4.x/linux-Os > 819276 52460 78896 950632 e8168 linux-2.5.x/vmlinux-inline-Os > ^^^^^^ > 2.6 still needs a hard diet... :-/ I did the same observation a few weeks ago on 2.5.74/gcc-2.95.3. I tried to track down the responsible, to the point that I completely disabled every driver, networking option and file-system, just to see, and got about a 550 kB vmlinux compiled with -Os. 550 kB for nothing :-( I don't have the config nor the exact numbers right here now, but I can redo the tests on 2.6.0-test1 if needed. I was interested in using a very minimal pre-boot kernel with kexec which would automatically select a valid image among several ones. But 500 kB overhead for a boot loader quickly refrained me... Cheers, Willy