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 95540C4321E for ; Fri, 7 Sep 2018 13:44:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 47FF42075E for ; Fri, 7 Sep 2018 13:44:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 47FF42075E 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 S1729662AbeIGSZj (ORCPT ); Fri, 7 Sep 2018 14:25:39 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:42620 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726598AbeIGSZj (ORCPT ); Fri, 7 Sep 2018 14:25:39 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w87DiYcx094422 for ; Fri, 7 Sep 2018 09:44:36 -0400 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2mbrb5wjrp-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 07 Sep 2018 09:44:36 -0400 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 7 Sep 2018 14:44:24 +0100 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w87DiNTC30736496 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 7 Sep 2018 13:44:23 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EAF02AE058; Fri, 7 Sep 2018 16:43:43 +0100 (BST) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4D11FAE051; Fri, 7 Sep 2018 16:43:42 +0100 (BST) Received: from linux.vnet.ibm.com (unknown [9.199.46.141]) by d06av26.portsmouth.uk.ibm.com (Postfix) with SMTP; Fri, 7 Sep 2018 16:43:41 +0100 (BST) Date: Fri, 7 Sep 2018 19:14:20 +0530 From: Srikar Dronamraju To: Peter Zijlstra Cc: Jirka Hladky , Mel Gorman , Jakub Ra??ek , linux-kernel , "kkolakow@redhat.com" , Ingo Molnar Subject: Re: [SCHEDULER] Performance drop in 4.19 compared to 4.18 kernel Reply-To: Srikar Dronamraju References: <20180907125649.GA3995@linux.vnet.ibm.com> <20180907131923.GB24106@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20180907131923.GB24106@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.5.24 (2015-08-30) X-TM-AS-GCONF: 00 x-cbid: 18090713-0020-0000-0000-000002C2BF06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18090713-0021-0000-0000-0000210FFC85 Message-Id: <20180907134420.GD3995@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-09-07_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=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809070140 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Peter Zijlstra [2018-09-07 15:19:23]: > On Fri, Sep 07, 2018 at 06:26:49PM +0530, Srikar Dronamraju wrote: > > > Can you please pick > > > > > > 1. 69bb3230297e881c797bbc4b3dbf73514078bc9d sched/numa: Stop multiple tasks > > from moving to the cpu at the same time > > 2. dc62cfdac5e5b7a61cd8a2bd4190e80b9bb408fc sched/numa: Avoid task migration > > for small numa improvement > > 3. 76e18a67cdd9e3609716c8a074c03168734736f9 sched/numa: Pass destination cpu as > > a parameter to migrate_task_rq > > 4. 489c19b440ebdbabffe530b9a41389d0a8b315d9 sched/numa: Reset scan rate > > whenever task moves across nodes > > 5. b7e9ae1ae3825f35cd0f38f1f0c8e91ea145bc30 sched/numa: Limit the > > conditions where scan period is reset > > > > from https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/kernel/sched > > That is not a stable tree; the whole thing is re-generated from my quilt > set every time I feel like it. > > It is likely those commit ids will no longer exist in a few hours. > Okay, I will forward the relevant mails to Jirka. -- Thanks and Regards Srikar Dronamraju