From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754592AbWKHRGx (ORCPT ); Wed, 8 Nov 2006 12:06:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754591AbWKHRGx (ORCPT ); Wed, 8 Nov 2006 12:06:53 -0500 Received: from omx2-ext.sgi.com ([192.48.171.19]:61885 "EHLO omx2.sgi.com") by vger.kernel.org with ESMTP id S1754592AbWKHRGv (ORCPT ); Wed, 8 Nov 2006 12:06:51 -0500 Date: Wed, 8 Nov 2006 09:06:44 -0800 From: Paul Jackson To: Peter Zijlstra Cc: clameter@sgi.com, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: Avoid allocating during interleave from almost full nodes Message-Id: <20061108090644.f23d37de.pj@sgi.com> In-Reply-To: <1162999085.14238.17.camel@twins> 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> Organization: SGI X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401