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<20220727162245.209794-1-p.raghav@samsung.com> <20220727162245.209794-6-p.raghav@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 2022-07-27 23:59, Chaitanya Kulkarni wrote: >> Sequential Write: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 578 | 2257 | 12.80 | 576 | 2248 | 25.78 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 581 | 2268 | 12.74 | 576 | 2248 | 25.85 | >> x-----------------x---------------------------------x---------------------------------x >> >> Sequential read: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 667 | 2605 | 11.79 | 675 | 2637 | 23.49 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 667 | 2605 | 11.79 | 675 | 2638 | 23.48 | >> x-----------------x---------------------------------x---------------------------------x >> >> Random read: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 522 | 2038 | 15.05 | 514 | 2006 | 30.87 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 522 | 2039 | 15.04 | 523 | 2042 | 30.33 | >> x-----------------x---------------------------------x---------------------------------x >> >> Minor variations are noticed in Sequential write with io depth 8 and >> in random read with io depth 16. But overall no noticeable differences >> were noticed > > minor variations in with aspect of the performance ? > are these documented somewhere ? > The table above documents those minor variations in performance. > move the large table of performance numbers to the cover letter it looks > ugly in the git log... > I could do that. > 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 us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C4915C00144 for ; Fri, 29 Jul 2022 07:52:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1659081129; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post; 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Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 To: Chaitanya Kulkarni From: Pankaj Raghav In-Reply-To: X-Originating-IP: [106.210.248.8] X-ClientProxiedBy: CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) To CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrBKsWRmVeSWpSXmKPExsWy7djPc7rzJj5OMvhxTsxi9d1+NotpH34y W7w/+JjV4vfZ88wWe9/NZrXYs2gSk8XK1UeZLJ6sn8Vs8bfrHpPF3lvaFpd3zWGzmL/sKbvF hLavzBY3JjxltFhz8ymLxYlb0g4CHpeveHvsnHWX3ePy2VKPTas62Tw2L6n32H2zgc2jt/kd m8fO1vusHu/3XQWKn672+LxJzqP9QDdTAE8Ul01Kak5mWWqRvl0CV8aJY9PZC1okKt4sW8Xa wPhcsIuRk0NCwERi5bkW1i5GLg4hgRWMEkuOfWcCSQgJfGGU2LozASLxmVGiYV0jM0zHj94t jBCJ5YwS69dOYYPoAKpa3aACkdjJKLHn4AewBK+AncTf6yAdHBwsAqoSU15qQYQFJU7OfMIC YosKREqs2X2WHcQWFvCSWHzoHVgrs4C4xK0n88EuEhHQk7h66wY7yHxmgflsEqeeP2cDmckm oCXR2AnWywm06u2cKawQvZoSrdt/s0PY8hLb386BekBRov/7BjYIu1Zi7bEzYDMlBF5xSmzb +ogRIuEisfPkEXYIW1ji1fEtULaMxP+dEAdJCFRLPL3xmxmiuYVRon/nerCDJASsJfrO5EDU OEpceXWcCSLMJ3HjrSDEPXwSk7ZNZ57AqDoLKShmIXl5FpIXZiF5YQEjyypG8dTS4tz01GLj vNRyveLE3OLSvHS95PzcTYzAxHj63/GvOxhXvPqod4iRiYPxEKMEB7OSCK9AwOMkId6UxMqq 1KL8+KLSnNTiQ4zSHCxK4rzJmRsShQTSE0tSs1NTC1KLYLJMHJxSDUzlZr2FsxNetHDHns// WN4xJcZsor9PQoSa67pZqh0djwX9v22q+WnO9O3zyd/dmjck0n8tsubJsD5i9nLOVT6TXT8s l2T/XKaqv2tj/l57Dt1qzTWuW8xiKi4mRNYxcFu93vNz6vya3rdnF5h8XV08eY2FrumueZ1x VjE1mVPfHa3a0zx/ZmNmy9rW0/XHfT482q5YcVph7gkpvwmXzjtffhok8Wy29m4VvnOyh8R+ niuXapn881S71lr5KXKdV4VfcjvM9Pp9xuHJ+8cFiy1tJJacd5x+5p/zlii5Mv0N4TpsLYUc 79Tc0rQCnKc7SlzcnmRm9yU0UEnz6/r/1T3MWhKrj61VTI9aXh6jI6vEUpyRaKjFXFScCABZ KwqV+wMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPKsWRmVeSWpSXmKPExsVy+t/xu7pzJz5OMjjYb2Wx+m4/m8W0Dz+Z Ld4ffMxq8fvseWaLve9ms1rsWTSJyWLl6qNMFk/Wz2K2+Nt1j8li7y1ti8u75rBZzF/2lN1i QttXZosbE54yWqy5+ZTF4sQtaQcBj8tXvD12zrrL7nH5bKnHplWdbB6bl9R77L7ZwObR2/yO zWNn631Wj/f7rgLFT1d7fN4k59F+oJspgCdKz6Yov7QkVSEjv7jEVina0MJIz9DSQs/IxFLP 0Ng81srIVEnfziYlNSezLLVI3y5BL+PEsensBS0SFW+WrWJtYHwu2MXIySEhYCLxo3cLYxcj F4eQwFJGieUTVjJDJGQkPl35yA5hC0v8udbFBlH0kVGiY/p3JghnJ6PEszNrwap4Bewk/l4H GcXBwSKgKjHlpRZEWFDi5MwnLCC2qECkxMNlTUwgtrCAl8TiQ+/YQGxmAXGJW0/mg8VFBPQk rt66wQ4yn1lgPpvE7InfmCGWfWaUeHx2EwvIAjYBLYnGTrC9nEB7386ZwgoxSFOidftvdghb XmL72zlQ3yhK9H/fwAZh10q8ur+bcQKj6Cwk981CcscsJKNmIRm1gJFlFaNIamlxbnpusaFe cWJucWleul5yfu4mRmBK2Xbs5+YdjPNefdQ7xMjEwXiIUYKDWUmEVyDgcZIQb0piZVVqUX58 UWlOavEhRlNgGE1klhJNzgcmtbySeEMzA1NDEzNLA1NLM2MlcV7Pgo5EIYH0xJLU7NTUgtQi mD4mDk6pBial9F+LOvjePbdsmdf+187ohMjHrVMFpyhPz1kkYzzlzppJ3ln7uHW7C1n2HUu3 n/jnR3WH7WqXPec9etLPq0ff92f6e/hk3Yfnahp32jXm7Ppy5qVlebTeo2mTuQRrxPL7L/Eb b7LLc2RUOhSy9t45oUUsGTIXRJ0yjyctKOFXmZ849e+B6EixA4p+PdtCQmcoKxQoaEydu9pw +ndWO/3y1QK7Yp49uZtX+tRNMKbLZb5w3y3hJVappn3Shjq6VXmrMx6rdDu+fKHwtEilyD8u dtly0Q1nTafFh+e2F9aVpAQZ7W/68UrrSrfL88ULfZ5s7l/97dTSoOrkDfUucVumr1J7FD7v 2S/ZEL4iKyWW4oxEQy3mouJEAMBw9K2yAwAA X-CMS-MailID: 20220729075158eucas1p29f800c791e3504b687064ad650d20055 X-Msg-Generator: CA X-RootMTR: 20220727162251eucas1p12939ac3864fd8705ae139eb2d1087d8f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20220727162251eucas1p12939ac3864fd8705ae139eb2d1087d8f References: <20220727162245.209794-1-p.raghav@samsung.com> <20220727162245.209794-6-p.raghav@samsung.com> X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.85 on 10.11.54.7 Subject: Re: [dm-devel] [PATCH v8 05/11] null_blk: allow non power of 2 zoned devices X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "axboe@kernel.dk" , "bvanassche@acm.org" , "pankydev8@gmail.com" , "Johannes.Thumshirn@wdc.com" , "damien.lemoal@opensource.wdc.com" , "snitzer@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-block@vger.kernel.org" , "dm-devel@redhat.com" , "gost.dev@samsung.com" , "jaegeuk@kernel.org" , "hch@lst.de" , "matias.bjorling@wdc.com" , Luis Chamberlain Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On 2022-07-27 23:59, Chaitanya Kulkarni wrote: >> Sequential Write: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 578 | 2257 | 12.80 | 576 | 2248 | 25.78 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 581 | 2268 | 12.74 | 576 | 2248 | 25.85 | >> x-----------------x---------------------------------x---------------------------------x >> >> Sequential read: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 667 | 2605 | 11.79 | 675 | 2637 | 23.49 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 667 | 2605 | 11.79 | 675 | 2638 | 23.48 | >> x-----------------x---------------------------------x---------------------------------x >> >> Random read: >> >> x-----------------x---------------------------------x---------------------------------x >> | IOdepth | 8 | 16 | >> x-----------------x---------------------------------x---------------------------------x >> | | KIOPS |BW(MiB/s) | Lat(usec) | KIOPS |BW(MiB/s) | Lat(usec) | >> x-----------------x---------------------------------x---------------------------------x >> | Without patch | 522 | 2038 | 15.05 | 514 | 2006 | 30.87 | >> x-----------------x---------------------------------x---------------------------------x >> | With patch | 522 | 2039 | 15.04 | 523 | 2042 | 30.33 | >> x-----------------x---------------------------------x---------------------------------x >> >> Minor variations are noticed in Sequential write with io depth 8 and >> in random read with io depth 16. But overall no noticeable differences >> were noticed > > minor variations in with aspect of the performance ? > are these documented somewhere ? > The table above documents those minor variations in performance. > move the large table of performance numbers to the cover letter it looks > ugly in the git log... > I could do that. > -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel