Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760441AbYHOVuH (ORCPT ); Fri, 15 Aug 2008 17:50:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755234AbYHOVtz (ORCPT ); Fri, 15 Aug 2008 17:49:55 -0400 Received: from one.firstfloor.org ([213.235.205.2]:55245 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755209AbYHOVtz (ORCPT ); Fri, 15 Aug 2008 17:49:55 -0400 Date: Fri, 15 Aug 2008 23:51:21 +0200 From: Andi Kleen To: Steven Rostedt Cc: Andi Kleen , Mathieu Desnoyers , Linus Torvalds , Jeremy Fitzhardinge , LKML , Ingo Molnar , Thomas Gleixner , Peter Zijlstra , Andrew Morton , David Miller , Roland McGrath , Ulrich Drepper , Rusty Russell , Gregory Haskins , Arnaldo Carvalho de Melo , "Luis Claudio R. Goncalves" , Clark Williams Subject: Re: Efficient x86 and x86_64 NOP microbenchmarks Message-ID: <20080815215121.GK19125@one.firstfloor.org> References: <489CE90D.1040902@goop.org> <20080813175213.GA8679@Krystal> <20080813184142.GM1366@one.firstfloor.org> <20080813193011.GC15547@Krystal> <20080813193715.GQ1366@one.firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 634 Lines: 18 > > The other advantage is that it would allow getting rid of > > the frame pointer. > > This is the only advantage that you have. Ok. But it's a serious one. It gives slightly more gain as your whole complicated patching exercise. Ok maybe it would be better to just properly fix gcc, but the problem is it takes forever for the user base to actually start using a new gcc :/ -Andi -- 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/