From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751188AbWFBD1L (ORCPT ); Thu, 1 Jun 2006 23:27:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751191AbWFBD1K (ORCPT ); Thu, 1 Jun 2006 23:27:10 -0400 Received: from fallbackmx02.syd.optusnet.com.au ([211.29.133.72]:30097 "EHLO fallbackmx02.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S1751188AbWFBD1J (ORCPT ); Thu, 1 Jun 2006 23:27:09 -0400 From: Con Kolivas To: linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC] smt nice introduces significant lock contention Date: Fri, 2 Jun 2006 13:23:43 +1000 User-Agent: KMail/1.9.1 Cc: "Chen, Kenneth W" , "'Chris Mason'" , "Ingo Molnar" References: <000001c685ed$31cba1d0$d234030a@amr.corp.intel.com> <200606021304.14819.kernel@kolivas.org> In-Reply-To: <200606021304.14819.kernel@kolivas.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200606021323.44225.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 02 June 2006 13:04, Con Kolivas wrote: > Sure, you have the hack lock. Actually we can just trylock and if it fails > remove it from the sibling_map and go to out_unlock without a separate > trylock_smt_cpus function entirely... I mean go to out_unlock if the sibling_map is empty sorry. -- -ck