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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60158C43334 for ; Mon, 18 Jul 2022 01:14:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232180AbiGRBOx (ORCPT ); Sun, 17 Jul 2022 21:14:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54074 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231937AbiGRBOu (ORCPT ); Sun, 17 Jul 2022 21:14:50 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF1C211801 for ; Sun, 17 Jul 2022 18:14:49 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id c3so8459134pfb.13 for ; Sun, 17 Jul 2022 18:14:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=eQAZ3O9SzuCt/F9lSSXScWHLuD4SVMp78IGm0SPE7gQ=; b=oplNe3eVsGFmxpjamcsvfXuQqB7bMOQRGp/li++QcwqHYxmFMSLV0Gz2ek12DfzTCH dyVKQYtS8ih5zzNKciGS9xdwrHQsKqmHV2d8BjA1zyhWkNvLedUeetol1/nqFiSXjEzQ yqm17R1y80pDN++tZqvONJEH0mQjcAPVRcQJEjGetn97Ob9mBW1wZVhQvx+/gLDzvJyn 2dQYhWwimrteU97C+76r0DzVpc8341eBvZ/duATnloMMu1VhfS53iHdHQio1n5WaHsIY UPPPUvM2BPPHbMwVsA8MhurbI4a6dItxgaFtleFGNKTiIRB++3jG6bOeX0fs43Kmz2L9 wRLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=eQAZ3O9SzuCt/F9lSSXScWHLuD4SVMp78IGm0SPE7gQ=; b=Fw6UznnOY3iNYfcMzXoIJCsEpLjE0Ni9jGOZVU5ctjvxrPd68a3e+/tbh6sTgKOdKm SsdYC9/mZ/KuiqZmLwHWKvnaVL4j2N2r7lrl7X3x9e82ivwzbEVMZFKuEMD6dTaDBAyk mK0oAFG9C6BEPdmzaF3CNtN/PdgK57KehRJexoo4qckn9fi02bVvcv7tI+U2UCzoYI2n VD6NaSMdCuWHS6PSBeOZaOhSsnv9FRj7mdcB51Jy8rdJni4LHD7+AG6ZQArtqwnUK90A DEoiyZhI6oJdh4Dx36Fmu8gw/QYW8X7ml3E4zk/0TMzh061zbEoeJR8fiijolSO26KIt HTcw== X-Gm-Message-State: AJIora+AB/455pXCaNDSKRT7PILh69eVZ4g2gQ/Ykel0DBmKZ1dJej2P 9PIP7QGuKr6dCDsf1HqDL1E1Vybv7wX+zQ== X-Google-Smtp-Source: AGRyM1shEIaF4JG2n1WJHxPYM2A5LlhrO1uNTpcJbBZRIunLUiGHuqOG+hHn3pUqz4eltbC0PK4HrQ== X-Received: by 2002:a05:6a00:b4d:b0:52b:1eb1:218e with SMTP id p13-20020a056a000b4d00b0052b1eb1218emr20375015pfo.33.1658106889133; Sun, 17 Jul 2022 18:14:49 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id t13-20020a62d14d000000b00528a4238eadsm8076255pfl.13.2022.07.17.18.14.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 17 Jul 2022 18:14:48 -0700 (PDT) Message-ID: <2769e603-613e-0d61-0942-511bfb97760d@kernel.dk> Date: Sun, 17 Jul 2022 19:14:47 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.10.0 Subject: Re: [LKP] Re: [io_uring] 584b0180f0: phoronix-test-suite.fio.SequentialWrite.IO_uring.Yes.Yes.1MB.DefaultTestDirectory.mb_s -10.2% regression Content-Language: en-US To: Yin Fengwei , kernel test robot Cc: LKML , io-uring@vger.kernel.org, lkp@lists.01.org, lkp@intel.com References: <20220527092432.GE11731@xsang-OptiPlex-9020> <2085bfef-a91c-8adb-402b-242e8c5d5c55@kernel.dk> <0d60aa42-a519-12ad-3c69-72ed12398865@intel.com> <26d913ea-7aa0-467d-4caf-a93f8ca5b3ff@kernel.dk> <6d70460d-0a85-4104-9abc-dd100af99e6f@intel.com> From: Jens Axboe In-Reply-To: <6d70460d-0a85-4104-9abc-dd100af99e6f@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/17/22 6:58 PM, Yin Fengwei wrote: > > > On 7/15/2022 11:58 PM, Jens Axboe wrote: >> I can't really explain that either, at least not immediately. I tried >> running with and without that patch, and don't see any difference here. >> In terms of making this more obvious, does the below also fix it for >> you? > I will try the fix and let you know the result. > >> >> And what filesystem is this being run on? > I am using ext4 and LKP are also using ext4. Thanks. Thanks, I'll try ext4 as well (was on XFS). -- Jens Axboe