From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751087AbaHBERn (ORCPT ); Sat, 2 Aug 2014 00:17:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60722 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750729AbaHBERm (ORCPT ); Sat, 2 Aug 2014 00:17:42 -0400 Message-ID: <53DC6641.2050904@redhat.com> Date: Sat, 02 Aug 2014 00:17:05 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 To: Jirka Hladky , Davidlohr Bueso CC: Peter Zijlstra , Aaron Lu , LKML , lkp@01.org, Hai Huang Subject: Re: [LKP] [sched/numa] a43455a1d57: +94.1% proc-vmstat.numa_hint_faults_local References: <53d70ee6.JsUEmW5dWsv8dev+%fengguang.wu@intel.com> <53D72FF5.90908@intel.com> <20140729023940.37b6aebc@annuminas.surriel.com> <20140731104241.GA9918@twins.programming.kicks-ass.net> <20140731155723.GY3588@twins.programming.kicks-ass.net> <53DA6BDA.8080000@redhat.com> <1406926000.16021.6.camel@buesod1.americas.hpqcorp.net> <53DC06FA.8030104@redhat.com> In-Reply-To: <53DC06FA.8030104@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/01/2014 05:30 PM, Jirka Hladky wrote: > I see the regression only on this box. It has 4 "Ivy Bridge-EX" > Xeon E7-4890 v2 CPUs. > > http://ark.intel.com/products/75251 > http://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Ivy_Bridge-EX.22_.2822_nm.29_Expandable_2 > > > > Please rerun the test on box with Ivy Bridge CPUs. It seems that > older CPU generations are not affected. That would have been good info to know :) I've been spending about a month trying to reproduce your issue on a Westmere E7-4860. Good thing I found all kinds of other scheduler issues along the way... - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJT3GZBAAoJEM553pKExN6D4FcH/2c/kYOZkbJeLBEWJHB0yWNR tqI2Lt/qxPxOKADlDylJwj2Dq8R19Cc4tnJZAdPh+wgCivFefseQY0MI1TI8CO/Z vEH+dCG8hokygFxKqAX9udI0MD1OxfTKKIk4fdjInZ632JG+JHnqVH6qWxBsriXD 151jzCR/zQEjg6gyCc8YsL06Q9YHyVv7dakggtRkYnE1GIUAtTDhFttRpNYoiVQQ y/d32adq//PywTmsyWwJMu1ZGe1eGC57JBYzjoUo2iOlFQ9QR+fe4W2/6ZCbekwK O8ZYbrJzDGrNQP2yDYd+o040KeVfzYkOtwz7+/40TYIvqFiuvKxEAxbJ32+krxA= =XxCE -----END PGP SIGNATURE-----