From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754839AbeARWYV (ORCPT ); Thu, 18 Jan 2018 17:24:21 -0500 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:49066 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754440AbeARWYD (ORCPT ); Thu, 18 Jan 2018 17:24:03 -0500 X-IronPort-AV: E=Sophos;i="5.46,378,1511798400"; d="scan'208";a="69247341" From: Bart Van Assche To: "loberman@redhat.com" , "snitzer@redhat.com" CC: "dm-devel@redhat.com" , "linux-kernel@vger.kernel.org" , "hch@infradead.org" , "linux-block@vger.kernel.org" , "osandov@fb.com" , "axboe@kernel.dk" , "ming.lei@redhat.com" Subject: Re: [RFC PATCH] blk-mq: fixup RESTART when queue becomes idle Thread-Topic: [RFC PATCH] blk-mq: fixup RESTART when queue becomes idle Thread-Index: AQHTkKfyH9yE3b9g50uHm4ZmGS9HzaN6M0UAgAABfYA= Date: Thu, 18 Jan 2018 22:24:00 +0000 Message-ID: <1516314239.2676.79.camel@wdc.com> References: <20180118170353.GB19734@redhat.com> <1516296056.2676.23.camel@wdc.com> <20180118183039.GA20121@redhat.com> <1516301278.2676.35.camel@wdc.com> <20180118204856.GA31679@redhat.com> <1516309128.2676.38.camel@wdc.com> <20180118212327.GB31679@redhat.com> <1516311554.2676.50.camel@wdc.com> <20180118220132.GA20860@redhat.com> <1516313920.24506.4.camel@redhat.com> In-Reply-To: <1516313920.24506.4.camel@redhat.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [199.255.44.172] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;CY1PR0401MB1002;7:NrxU/EE95CdaSc31TLkdH+P7AjrZSvzpEE2op+Wi8CJtVaWdceKV1PBzqUcZWpFQ74Gl1onE2tOuwzFbTtOkLbiFzW5Qy4W1jpP+K0RE0+lETu9uzv7PumgJIvhneEqp4TyTCNEdebGLPwlF3GO0dSarsTP9i89EuN7m8BY9Sws8VAGh6uTtsUL0wzO3M7p13NlyPs4QlEy69qp37kBw7VkAWYdOqSWLguMKgUaadCqyIk3hZSGlwzUjoJzf72Ff;20:g+ocVePXURi+1+9i0i8wqkIPiuyrH/a0nLZEzuNqXI2JEtCMOBabTIzDEVEdQalzK1U8OlYNu0dQsx80x2MUSjdlW2EjRpfxYwIPK0awfKoB3IuMB2oeyvpkNzzgq+7d6qn/GajppPyLYagAsPI/7ynaUWxYByfeFz37g8hFSjE= x-ms-exchange-antispam-srfa-diagnostics: SSOS; x-ms-office365-filtering-correlation-id: ced915d5-88fc-4d96-316d-08d55ec22cb1 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(5600026)(4604075)(3008032)(48565401081)(2017052603307)(7153060)(7193020);SRVR:CY1PR0401MB1002; x-ms-traffictypediagnostic: CY1PR0401MB1002: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Bart.VanAssche@wdc.com; wdcipoutbound: EOP-TRUE x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(166708455590820); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040495)(2401047)(8121501046)(5005006)(3231023)(2400068)(944501161)(3002001)(10201501046)(93006095)(93001095)(6055026)(6041282)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123558120)(20161123562045)(20161123564045)(6072148)(201708071742011);SRVR:CY1PR0401MB1002;BCL:0;PCL:0;RULEID:(100000803101)(100110400095);SRVR:CY1PR0401MB1002; x-forefront-prvs: 05568D1FF7 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39860400002)(346002)(376002)(396003)(366004)(39380400002)(377424004)(199004)(189003)(4326008)(6512007)(6306002)(53936002)(7736002)(25786009)(229853002)(6486002)(102836004)(6436002)(305945005)(478600001)(72206003)(316002)(54906003)(110136005)(59450400001)(6246003)(2906002)(6506007)(99286004)(36756003)(14454004)(93886005)(68736007)(81166006)(8936002)(8676002)(66066001)(103116003)(6116002)(2950100002)(86362001)(76176011)(105586002)(3846002)(2900100001)(2501003)(5660300001)(81156014)(26005)(345774005)(106356001)(3280700002)(77096007)(97736004)(3660700001);DIR:OUT;SFP:1102;SCL:1;SRVR:CY1PR0401MB1002;H:CY1PR0401MB1536.namprd04.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; x-microsoft-antispam-message-info: X707bJZjHWX9K/HWgNPH4MfQ6jghPHSADGFIjCIzSnHbLz9/+xVaBqDdJMfrUgEcBME3clFxmp4WZ1Pq2Pl5uA== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: ced915d5-88fc-4d96-316d-08d55ec22cb1 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Jan 2018 22:24:00.8488 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR0401MB1002 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id w0IMOOmx010792 On Thu, 2018-01-18 at 17:18 -0500, Laurence Oberman wrote: > OK, I ran 5 at once of 5 separate mount points. > I am using 4k block sizes > Its solid consistent for me. No stalls no gaps. Hi Laurence, That's great news and thank you for having shared this information but I think it should be mentioned that you have been running my tree in which some recent block and dm patches were reverted (https://github.com/bvanassche/linux/tree/block-scsi-for-next) > > [global] > name=02-mq > filename=fio-output-02-mq.txt > rw=randwrite > verify=md5 > ;rwmixread=60 > ;rwmixwrite=40 > bs=4K > ;direct=1 > ;numjobs=4 > ;time_based=1 > runtime=120 > > [file1] > size=3G > ioengine=libaio > iodepth=16 > > I watch I/O and I see it ramp up but fio still runs and it kind of > shuts down. In test "file1" I see an I/O size of 3G. Does that mean that the patch that should fix the sgl_alloc() issue is working? Thanks, Bart.