From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760968AbXHTRXT (ORCPT ); Mon, 20 Aug 2007 13:23:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755521AbXHTRXG (ORCPT ); Mon, 20 Aug 2007 13:23:06 -0400 Received: from mx2.suse.de ([195.135.220.15]:33026 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752925AbXHTRXE (ORCPT ); Mon, 20 Aug 2007 13:23:04 -0400 Date: Mon, 20 Aug 2007 20:16:57 +0200 From: Andi Kleen To: Roland Dreier Cc: Arjan van de Ven , discuss@x86-64.org, jh@suse.cz, Stephen Hemminger , Andi Kleen , linux-kernel@vger.kernel.org Subject: Re: [discuss] [PATCH] x86-64: memset optimization Message-ID: <20070820181657.GO16680@bingen.suse.de> References: <20070817163446.3e63f208@freepuppy.rosehill.hemminger.net> <200708182055.11277.ak@suse.de> <20070819010430.2c8c31fc@oldman.hemminger.net> <200708192024.24864.ak@suse.de> <20070820085253.5f589e58@freepuppy.rosehill.hemminger.net> <1187625068.2577.3.camel@laptopd505.fenrus.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > so the code gets bigger and worse in every way. I guess it would make sense to file this as a bug in the gcc bugzilla Another useful enhancement might be to have a -finline-string-functions or similar that could be set with -Os. In general I've been wondering for some time if the kernel really doesn't need some new optimization setting somewhere between -Os and -O2. -Os occasionally has a few other bad side effects too. -Andi