From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 956FFC00449 for ; Wed, 3 Oct 2018 14:08:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5EDC32082A for ; Wed, 3 Oct 2018 14:08:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5EDC32082A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727148AbeJCU50 (ORCPT ); Wed, 3 Oct 2018 16:57:26 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:39324 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726543AbeJCU50 (ORCPT ); Wed, 3 Oct 2018 16:57:26 -0400 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w93E5c03088127 for ; Wed, 3 Oct 2018 10:08:52 -0400 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 2mvwvj3uvx-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 03 Oct 2018 10:08:51 -0400 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 3 Oct 2018 15:08:48 +0100 Received: from b06cxnps3074.portsmouth.uk.ibm.com (9.149.109.194) by e06smtp03.uk.ibm.com (192.168.101.133) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 3 Oct 2018 15:08:44 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w93E8hvW065980 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 3 Oct 2018 14:08:44 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0CF5552057; Wed, 3 Oct 2018 17:08:21 +0100 (BST) Received: from linux.vnet.ibm.com (unknown [9.199.54.87]) by d06av21.portsmouth.uk.ibm.com (Postfix) with SMTP id 4C5D352050; Wed, 3 Oct 2018 17:08:19 +0100 (BST) Date: Wed, 3 Oct 2018 19:38:41 +0530 From: Srikar Dronamraju To: Mel Gorman Cc: Peter Zijlstra , Ingo Molnar , Jirka Hladky , Rik van Riel , LKML , Linux-MM Subject: Re: [PATCH 2/2] mm, numa: Migrate pages to local nodes quicker early in the lifetime of a task Reply-To: Srikar Dronamraju References: <20181001100525.29789-1-mgorman@techsingularity.net> <20181001100525.29789-3-mgorman@techsingularity.net> <20181002124149.GB4593@linux.vnet.ibm.com> <20181002135459.GA7003@techsingularity.net> <20181002173005.GD4593@linux.vnet.ibm.com> <20181003130741.GA4488@linux.vnet.ibm.com> <20181003132155.GD7003@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20181003132155.GD7003@techsingularity.net> User-Agent: Mutt/1.5.24 (2015-08-30) X-TM-AS-GCONF: 00 x-cbid: 18100314-0012-0000-0000-000002B205CC X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18100314-0013-0000-0000-000020E63C77 Message-Id: <20181003140841.GC4488@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-10-03_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=547 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810030137 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Mel Gorman [2018-10-03 14:21:55]: > On Wed, Oct 03, 2018 at 06:37:41PM +0530, Srikar Dronamraju wrote: > > * Srikar Dronamraju [2018-10-02 23:00:05]: > > > > That's unfortunate. > > How much does this workload normally vary between runs? If you monitor > migrations over time, is there an increase spike in migration early in > the lifetime of the workload? > The run to run variation has always been less than 1%. I haven't monitored migrations over time. Will try to include it my next run. Its a shared setup so I may not get the box immediately. -- Thanks and Regards Srikar Dronamraju