From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932198Ab2LEW1o (ORCPT ); Wed, 5 Dec 2012 17:27:44 -0500 Received: from mail.skyhub.de ([78.46.96.112]:60923 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932073Ab2LEW1m (ORCPT ); Wed, 5 Dec 2012 17:27:42 -0500 Date: Wed, 5 Dec 2012 23:27:38 +0100 From: Borislav Petkov To: John Cc: "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] Additional compiler optimization options Message-ID: <20121205222738.GB6239@liondog.tnic> Mail-Followup-To: Borislav Petkov , John , "linux-kernel@vger.kernel.org" References: <1354745355.79857.YahooMailNeo@web140001.mail.bf1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1354745355.79857.YahooMailNeo@web140001.mail.bf1.yahoo.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 05, 2012 at 02:09:15PM -0800, John wrote: > Came across this and wanted to show it to others > more knowledgeable for feedback.  Is this value-added or not? >  Upstream URL is: https://gitorious.org/rummage/random_patches This only makes sense if you can show a noticeable performance improvement using one of the those -march options with at least one benchmark from those which we have now in the kernel. And even that use case is limited because the majority of the kernel builds out there are distro kernels built with -mtune=generic so it would only make difference for people building their own kernels, who are a small minority, relatively. Thanks. -- Regards/Gruss, Boris.