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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 09CC8C4321A for ; Tue, 11 Jun 2019 00:52:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CFC3D206BA for ; Tue, 11 Jun 2019 00:52:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390322AbfFKAwN (ORCPT ); Mon, 10 Jun 2019 20:52:13 -0400 Received: from mga09.intel.com ([134.134.136.24]:27128 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728812AbfFKAwN (ORCPT ); Mon, 10 Jun 2019 20:52:13 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jun 2019 17:52:13 -0700 X-ExtLoop1: 1 Received: from yhuang-dev.sh.intel.com (HELO yhuang-dev) ([10.239.159.29]) by orsmga003.jf.intel.com with ESMTP; 10 Jun 2019 17:52:11 -0700 From: "Huang\, Ying" To: Josef Bacik Cc: kernel test robot , David Sterba , , Linus Torvalds , LKML Subject: Re: [LKP] [btrfs] c8eaeac7b7: aim7.jobs-per-min -11.7% regression References: <20190513025004.GG31424@shao2-debian> <87blzl7itt.fsf@yhuang-dev.intel.com> Date: Tue, 11 Jun 2019 08:52:11 +0800 In-Reply-To: <87blzl7itt.fsf@yhuang-dev.intel.com> (Ying Huang's message of "Wed, 29 May 2019 16:42:22 +0800") Message-ID: <87v9xdymdg.fsf@yhuang-dev.intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=ascii Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Huang, Ying" writes: > Hi, Josef, > > kernel test robot writes: > >> Greeting, >> >> FYI, we noticed a -11.7% regression of aim7.jobs-per-min due to commit: >> >> >> commit: c8eaeac7b734347c3afba7008b7af62f37b9c140 ("btrfs: reserve >> delalloc metadata differently") >> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >> >> in testcase: aim7 >> on test machine: 40 threads Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 384G memory >> with following parameters: >> >> disk: 4BRD_12G >> md: RAID0 >> fs: btrfs >> test: disk_rr >> load: 1500 >> cpufreq_governor: performance >> >> test-description: AIM7 is a traditional UNIX system level benchmark >> suite which is used to test and measure the performance of multiuser >> system. >> test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/ > > Here's another regression, do you have time to take a look at this? Ping Best Regards, Huang, Ying