Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752931Ab0BRIMV (ORCPT ); Thu, 18 Feb 2010 03:12:21 -0500 Received: from one.firstfloor.org ([213.235.205.2]:52501 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752406Ab0BRIMU (ORCPT ); Thu, 18 Feb 2010 03:12:20 -0500 To: Zachary Amsden Cc: "H. Peter Anvin" , Linus Torvalds , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar , x86@kernel.org, Avi Kivity Subject: Re: [PATCH] x86 rwsem optimization extreme From: Andi Kleen References: <1266443901-3646-1-git-send-email-zamsden@redhat.com> <4B7C7BE4.9050908@zytor.com> <4B7C9F0A.1080708@zytor.com> <4B7CC14F.7000802@redhat.com> Date: Thu, 18 Feb 2010 09:12:17 +0100 In-Reply-To: <4B7CC14F.7000802@redhat.com> (Zachary Amsden's message of "Wed, 17 Feb 2010 18:25:51 -1000") Message-ID: <87iq9v55em.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 667 Lines: 18 Zachary Amsden writes: > > Incidentally, the cost of putting all the rwsem code inline, using the > straightforward approach, for git-tip, using defconfig on x86_64 is > 3565 bytes / 20971778 bytes total, or 0.0168%, using gcc 4.4.3. The nice advantage of putting lock code inline is that it gets accounted to the caller in all profilers. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/