From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262157AbVGVUPk (ORCPT ); Fri, 22 Jul 2005 16:15:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262156AbVGVUPk (ORCPT ); Fri, 22 Jul 2005 16:15:40 -0400 Received: from mailout.stusta.mhn.de ([141.84.69.5]:43529 "HELO mailout.stusta.mhn.de") by vger.kernel.org with SMTP id S262157AbVGVUPH (ORCPT ); Fri, 22 Jul 2005 16:15:07 -0400 Date: Fri, 22 Jul 2005 22:15:03 +0200 From: Adrian Bunk To: David Lang Cc: christos gentsis , linux-kernel@vger.kernel.org Subject: Re: kernel optimization Message-ID: <20050722201503.GN3160@stusta.de> References: <42E14134.1040804@yahoo.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 22, 2005 at 12:52:22PM -0700, David Lang wrote: > This is a airly frequent question > > the short answer is 'don't try' > > the longer answer is that all the additional optimization options that are > part of O3+ are considered individually and if they make sense for the > kernel they are explicitly enabled (in some cases the optimizations need > to be explicitly turned off for proper functionality of the kernel under > all versions of GCC) As far as I can see, none of the additional optimizations with -O3 is enabled in the kernel. > David Lang cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed