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=-10.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 AF65BC4363D for ; Fri, 2 Oct 2020 08:20:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 794DB20708 for ; Fri, 2 Oct 2020 08:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387650AbgJBIUf (ORCPT ); Fri, 2 Oct 2020 04:20:35 -0400 Received: from mga18.intel.com ([134.134.136.126]:31365 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387641AbgJBIUe (ORCPT ); Fri, 2 Oct 2020 04:20:34 -0400 IronPort-SDR: CKB7aAEntKlOVDqQrdfisi6P8NdmYyDdG9cvVzDA6F58bFGqVreTEhOG+h91hRu1jE730TmMZE JKa21F9+dQJA== X-IronPort-AV: E=McAfee;i="6000,8403,9761"; a="150740164" X-IronPort-AV: E=Sophos;i="5.77,326,1596524400"; d="scan'208";a="150740164" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2020 01:20:27 -0700 IronPort-SDR: VAvwKm8yv/adFxa0i0UjSHBGLbVWNTAzS7bs1xbrD978obAwSQhcf/gpChaF2RmtJwKQFnO9gq IEbY9i7b84Mw== X-IronPort-AV: E=Sophos;i="5.77,326,1596524400"; d="scan'208";a="458530120" Received: from xzou3-mobl2.ccr.corp.intel.com (HELO [10.255.29.253]) ([10.255.29.253]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2020 01:20:23 -0700 Subject: Re: [perf report] 977f739b71: perf-test.skid_test.round2.MEM_LOAD_L3_MISS_RETIRED.LOCAL_DRAM_dtlb_withou t_NMI_fixed_period.fail To: Michael Petlan Cc: Jiri Olsa , Arnaldo Carvalho de Melo , Alexander Shishkin , Ian Rogers , Namhyung Kim , Peter Zijlstra , LKML , lkp@lists.01.org, lkp@intel.com References: <20200930091943.GB393@shao2-debian> From: "Chen, Rong A" Message-ID: Date: Fri, 2 Oct 2020 16:20:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/30/2020 8:41 PM, Michael Petlan wrote: > Hello. To me, it looks rather a random failure. Is it actually reproducible > and proven that the patch has caused it? The patch doesn't seem to cause > the fails below. Hi Michael, It's not always reproducible, but we can reproduce it in most cases: 39c0a53b114d0317 977f739b7126bf98b5202e243f6 ---------------- --------------------------- fail:runs %reproduction fail:runs | | | :8 75% 6:8 perf-test.skid_test.round2.MEM_LOAD_L3_MISS_RETIRED.LOCAL_DRAM_dtlb_with_NMI.fail :8 88% 7:8 perf-test.skid_test.round2.MEM_LOAD_L3_MISS_RETIRED.LOCAL_DRAM_dtlb_without_NMI_fixed_period.fail :8 25% 2:8 perf-test.skid_test.round2.MEM_LOAD_RETIRED.L2_HIT_dtlb_with_NMI.fail :8 62% 5:8 perf-test.skid_test.round2.MEM_LOAD_RETIRED.L2_HIT_dtlb_without_NMI_fixed_period.fail Best Regards, Rong Chen > Cheers, > Michael > > On Wed, 30 Sep 2020, kernel test robot wrote: >> Greeting, >> >> FYI, we noticed the following commit (built with gcc-9): >> >> commit: 977f739b7126bf98b5202e243f60cbc0a1ec2c3b ("perf report: Disable ordered_events for raw dump") >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >> >> >> in testcase: perf-test >> version: perf-test-x86_64-git-1_20200717 >> with following parameters: >> >> type: lkp >> ucode: 0xd6 >> >> test-description: The internal Perf Test suite. >> >> >> on test machine: 4 threads Intel(R) Core(TM) i7-7567U CPU @ 3.50GHz with 32G memory >> >> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): >> >> >> >> >> If you fix the issue, kindly add following tag >> Reported-by: kernel test robot >> >> >> 2020-09-28 17:02:40 ./skid_test/run.sh >> Mon Sep 28 17:02:58 UTC 2020 >> 3 test cases pass for skid_test test. 3 test cases fail for skid_test test. >> Test Case BR_INST_RETIRED.ALL_BRANCHES_PEBS_triad_loop_with_NMI PASS! >> Test Case MEM_LOAD_RETIRED.L2_HIT_dtlb_with_NMI PASS! >> Test Case MEM_LOAD_L3_MISS_RETIRED.LOCAL_DRAM_dtlb_with_NMI FAILED! >> Test Case BR_INST_RETIRED.ALL_BRANCHES_PEBS_triad_loop_without_NMI_fixed_period PASS! >> Test Case MEM_LOAD_RETIRED.L2_HIT_dtlb_without_NMI_fixed_period FAILED! >> Test Case MEM_LOAD_L3_MISS_RETIRED.LOCAL_DRAM_dtlb_without_NMI_fixed_period FAILED! >> >> >> >> To reproduce: >> >> git clone https://github.com/intel/lkp-tests.git >> cd lkp-tests >> bin/lkp install job.yaml # job file is attached in this email >> bin/lkp run job.yaml >> >> >> >> Thanks, >> Rong Chen >> >> >