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=-7.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable 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 C1508C3F2D1 for ; Thu, 5 Mar 2020 07:50:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99FE2208C3 for ; Thu, 5 Mar 2020 07:50:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726142AbgCEHuE (ORCPT ); Thu, 5 Mar 2020 02:50:04 -0500 Received: from mga11.intel.com ([192.55.52.93]:62923 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725914AbgCEHuE (ORCPT ); Thu, 5 Mar 2020 02:50:04 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 04 Mar 2020 23:50:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,517,1574150400"; d="scan'208";a="234335912" Received: from rjwysock-mobl1.ger.corp.intel.com (HELO [10.249.138.71]) ([10.249.138.71]) by orsmga008.jf.intel.com with ESMTP; 04 Mar 2020 23:50:01 -0800 Subject: Re: [cpufreq] 909c0e9cc1: fwq.fwq.med 210.0% improvement To: kernel test robot Cc: LKML , linux-acpi@vger.kernel.org, devel@acpica.org, linux-pm@vger.kernel.org, lkp@lists.01.org, Rafael Wysocki References: <20200305013509.GF5972@shao2-debian> From: "Rafael J. Wysocki" Organization: Intel Technology Poland Sp. z o. o., KRS 101882, ul. Slowackiego 173, 80-298 Gdansk Message-ID: <951b0986-bb35-d9a5-1639-0a8cdb3dcd04@intel.com> Date: Thu, 5 Mar 2020 08:50:00 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200305013509.GF5972@shao2-debian> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/5/2020 2:35 AM, kernel test robot wrote: > Greeting, > > FYI, we noticed a 210.0% improvement of fwq.fwq.med due to commit: Well, that sounds impressive. :-) > > commit: 909c0e9cc11ba39fa5a660583b25c2431cf54deb ("cpufreq: intel_pstate: Use passive mode by default without HWP") > https://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git intel_pstate-passive > > in testcase: fwq > on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 48G memory > with following parameters: > > nr_task: 100% > samples: 100000ss > iterations: 18x > cpufreq_governor: powersave The governor should be schedutil, though, unless it is explicitly set to powersave in the test environment. Is that the case?