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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 2EEEFC4361B for ; Fri, 18 Dec 2020 01:59:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E027723A3C for ; Fri, 18 Dec 2020 01:59:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727142AbgLRB67 (ORCPT ); Thu, 17 Dec 2020 20:58:59 -0500 Received: from mail-pf1-f169.google.com ([209.85.210.169]:35827 "EHLO mail-pf1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725930AbgLRB66 (ORCPT ); Thu, 17 Dec 2020 20:58:58 -0500 Received: by mail-pf1-f169.google.com with SMTP id c79so587730pfc.2; Thu, 17 Dec 2020 17:58:43 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Ylk3mmy8RKaw/CShyBpWu3tKW4aFR91rhWA8RSAroKA=; b=cJhLETY9dKputf7qF8FhZhad8+XpDO7LQM6RXthD+trjW6urvNYZRDOWSw2kaUwpni sz3e1a3f4hjqLKRdA1C6qqN2EhsnB1IT8qzWqyflEewPGbLtn1iSEugOsOBegXPZkj5I SeTrVih2RpRIpdKrR7dS8CzzxLdUrq/q3siiFKhSVUgwAjfzNoJBkE9RZ3PrPu9n2W4M xTk1grdsjuFkBofaelzFcZD0R19Pu4+Azt0AzsUTa6nwh6M5S/zSEm8sKljTdh5gq4Xb KrMAOhnBPWtDlWNkUGY/+jlF37IEnQsWJP/x+jdJlx/msw8zX5aKiCF4jgYtHgvB6aJY nv8A== X-Gm-Message-State: AOAM530FFFcDsZ2Si0/5nbZZBnWgLj26DN8bMAfxtyu9Bt0psbsEZGce tIVJDgcQ40CjJ5PP92dhd4NoTL+t8h0N7w== X-Google-Smtp-Source: ABdhPJw8hdM2+32d93UTdQYxaa4WmtOSaGcYE0QV3Hp+cC3iKXEnkkpVcSOKAa2u/1etfTJ4btFI8A== X-Received: by 2002:a63:c155:: with SMTP id p21mr1961874pgi.377.1608256697719; Thu, 17 Dec 2020 17:58:17 -0800 (PST) Received: from [192.168.3.217] (c-73-241-217-19.hsd1.ca.comcast.net. [73.241.217.19]) by smtp.gmail.com with ESMTPSA id b5sm6973724pfi.1.2020.12.17.17.58.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Dec 2020 17:58:16 -0800 (PST) Subject: Re: [PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support To: daejun7.park@samsung.com, Greg KH Cc: "avri.altman@wdc.com" , "jejb@linux.ibm.com" , "martin.petersen@oracle.com" , "asutoshd@codeaurora.org" , "stanley.chu@mediatek.com" , "cang@codeaurora.org" , "huobean@gmail.com" , ALIM AKHTAR , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Sung-Jun Park , yongmyung lee , Jinyoung CHOI , Adel Choi , BoRam Shin , SEUNGUK SHIN References: <20201216024444epcms2p5e69281911dd675306c473df3d2cef8b2@epcms2p5> <20201218010520epcms2p1f7994bde414008ea1f44c733350308db@epcms2p1> From: Bart Van Assche Message-ID: Date: Thu, 17 Dec 2020 17:58:14 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 MIME-Version: 1.0 In-Reply-To: <20201218010520epcms2p1f7994bde414008ea1f44c733350308db@epcms2p1> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 12/17/20 5:05 PM, Daejun Park wrote: > Here is my iozone script: > iozone -r 4k -+n -i2 -ecI -t 16 -l 16 -u 16 > -s $IO_RANGE/16 -F mnt/tmp_1 mnt/tmp_2 mnt/tmp_3 mnt/tmp_4 > mnt/tmp_5 mnt/tmp_6 mnt/tmp_7 mnt/tmp_8 mnt/tmp_9 mnt/tmp_10 mnt/tmp_11 > mnt/tmp_12 mnt/tmp_13 mnt/tmp_14 mnt/tmp_15 mnt/tmp_16 > > Result: > +----------+--------+---------+ > | IO range | HPB on | HPB off | > +----------+--------+---------+ > | 1 GB | 294.8 | 300.87 | > | 4 GB | 293.51 | 179.35 | > | 8 GB | 294.85 | 162.52 | > | 16 GB | 293.45 | 156.26 | > | 32 GB | 277.4 | 153.25 | > +----------+--------+---------+ Hi Daejun, What are the units of the numbers in columns 2 and 3? Thanks, Bart.