From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754595AbWKHRLS (ORCPT ); Wed, 8 Nov 2006 12:11:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754594AbWKHRLS (ORCPT ); Wed, 8 Nov 2006 12:11:18 -0500 Received: from amsfep19-int.chello.nl ([62.179.120.14]:11732 "EHLO amsfep19-int.chello.nl") by vger.kernel.org with ESMTP id S1754593AbWKHRLR (ORCPT ); Wed, 8 Nov 2006 12:11:17 -0500 Subject: Re: Avoid allocating during interleave from almost full nodes From: Peter Zijlstra To: Paul Jackson Cc: clameter@sgi.com, akpm@osdl.org, linux-kernel@vger.kernel.org In-Reply-To: <20061108090644.f23d37de.pj@sgi.com> References: <20061103134633.a815c7b3.akpm@osdl.org> <20061103143145.85a9c63f.akpm@osdl.org> <20061103172605.e646352a.pj@sgi.com> <20061103174206.53f2c49e.akpm@osdl.org> <20061104025128.ca3c9859.pj@sgi.com> <20061108022136.3b9b0748.pj@sgi.com> <1162999085.14238.17.camel@twins> <20061108090644.f23d37de.pj@sgi.com> Content-Type: text/plain Date: Wed, 08 Nov 2006 18:09:10 +0100 Message-Id: <1163005750.14238.19.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2006-11-08 at 09:06 -0800, Paul Jackson wrote: > Peter wrote: > > global fault counter > > I hope we avoid frequently updated, widely accessed global > counters. They tend to create hot cache lines on big NUMA > boxes. > > Christoph said that the counters he was suggesting were > node or cpu local. That sounds good to me. Very true indeed, I was just hoping we could come up with 1 vm-time; but perhaps the local vs global thing will keep us from that.