From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755929AbbCFPNa (ORCPT ); Fri, 6 Mar 2015 10:13:30 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:19926 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751729AbbCFPNZ (ORCPT ); Fri, 6 Mar 2015 10:13:25 -0500 Message-ID: <54F9C3F1.9000902@oracle.com> Date: Fri, 06 Mar 2015 08:12:49 -0700 From: David Ahern User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Mike Galbraith , Ingo Molnar , LKML Subject: Re: NMI watchdog triggering during load_balance References: <54F92788.6010007@oracle.com> <20150306091201.GZ21418@twins.programming.kicks-ass.net> In-Reply-To: <20150306091201.GZ21418@twins.programming.kicks-ass.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/6/15 2:12 AM, Peter Zijlstra wrote: > On Thu, Mar 05, 2015 at 09:05:28PM -0700, David Ahern wrote: >> Socket(s): 32 >> NUMA node(s): 4 > > Urgh, with 32 'cpus' per socket, you still do _8_ sockets per node, for > a total of 256 cpus per node. Per the response to Mike, the system has 4 physical cpus. Each cpu has 32 cores with 8 threads per core and 4 memory controllers (one mcu per 8 cores). Yes there are 256 logical cpus per node. David