Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760323AbXHTP4S (ORCPT ); Mon, 20 Aug 2007 11:56:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759633AbXHTP4J (ORCPT ); Mon, 20 Aug 2007 11:56:09 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:34679 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755002AbXHTP4I (ORCPT ); Mon, 20 Aug 2007 11:56:08 -0400 Subject: Re: [discuss] [PATCH] x86-64: memset optimization From: Arjan van de Ven To: Stephen Hemminger Cc: Andi Kleen , discuss@x86-64.org, linux-kernel@vger.kernel.org, jh@suse.cz In-Reply-To: <20070820085253.5f589e58@freepuppy.rosehill.hemminger.net> 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> Content-Type: text/plain Organization: Intel International BV Date: Mon, 20 Aug 2007 08:51:08 -0700 Message-Id: <1187625068.2577.3.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.11.90 (2.11.90-1.fc8) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 522 Lines: 16 On Mon, 2007-08-20 at 08:52 -0700, Stephen Hemminger wrote: > The problem is with the optimization flags: passing -Os causes the compiler > to be stupid and not inline any memset/memcpy functions. you get what you ask for.. if you don't want that then don't ask for it ;) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/