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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 648AFC5DF60 for ; Thu, 7 Nov 2019 07:54:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 29A9E21D7E for ; Thu, 7 Nov 2019 07:54:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="dSClSEgH"; dkim=pass (1024-bit key) header.d=sharedspace.onmicrosoft.com header.i=@sharedspace.onmicrosoft.com header.b="LWg/xlw+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726970AbfKGHyJ (ORCPT ); Thu, 7 Nov 2019 02:54:09 -0500 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:26137 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726696AbfKGHyJ (ORCPT ); Thu, 7 Nov 2019 02:54:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1573113248; x=1604649248; h=from:to:cc:subject:date:message-id:references: content-transfer-encoding:mime-version; bh=bzce1HQWI7vuB0PAmvHWX3tkS10mTiClkNMCcbitQwY=; b=dSClSEgH+1ohDTc4mGC6VujeQtV5aIQdECexaBuVEio43c/g+TTv0DmJ qissh6+xWtr2MRYQLZVcwriD2halT4FxPWfjS7eNzP4m3I1sMPlRO+mKA e5LtGH+Q21D6cBi5YQeluT3eCJithP9/TR2f6hYN/h61BDmPwyBdHAR11 Irgl8CiYNnLZgeTJbigeTeu+mOA6n5mDAA4d/VHj/uL6ggo9ZozsIjh8O n7EDOmgA1CIL2ws9ycNFr2PrT9DxEUHngB2SXdcWatCG3g+GWS8qkNLHS Dnv1ZvskXAn5DjVZXTFZlA6MlujdwLUzicSm65d9gOgG5b63C7zaEfq63 A==; IronPort-SDR: UeXMoIrW8BkPZFfBiussX0Cp8yWbYojmtEDKM+u5RIs7oani2YMY3zW+9u9kERvY6TBkI8tO0Q f0ru35PDD9rqq4FGooAAcUi3UY4dcrt15Mfkltu6V6iA6I5ODMzwUdig6ZCpLO8DZ2lD+rdaad /Hxb73QTkoPEUu2W5Qie3kjCKL5f1p3LX917G+SIy7FLwea2iHmFPu5UmRzmk+8BWCaxUNlo2Z JGanPVffarSKUbQ3cG+lqrBxjlNz7eskAMhj5Uk7bBMh6rwhmtmSrjvn91uw0ieRaTZG1o7n1a ivI= X-IronPort-AV: E=Sophos;i="5.68,277,1569254400"; d="scan'208";a="123095957" Received: from mail-co1nam03lp2053.outbound.protection.outlook.com (HELO NAM03-CO1-obe.outbound.protection.outlook.com) ([104.47.40.53]) by ob1.hgst.iphmx.com with ESMTP; 07 Nov 2019 15:54:07 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=H1GUckfTzQW8V/TcCusmH46pQKygn+07GWD9YuZl9zXCWx/GKksSeg/sTNt8/Vy0QCAqr2wCgMRm4Gt3jPxSdb0YO9Z8H2jlf1Mu0wl/1RnXt5SKv7ZTykXGT0/otBLbIoZLFLxyYxrcUgapSsBhhEOBHqI17hTfDJq/QiVwZfOQMJa4FQt3+pujnqqpWwN3jtT5g9bztYPliXF4s0RhcwMiQCWRjcXgCGCrQkG1b0xgaSGYdWF8hXM8KBcNQQq5byUK2rsIGCmBk1+14QPzEBzDpVqe8Zb7TOzeFQGQRmyTntwr0ZgW3j/zcLzj7sGK6E+u2PBVd8EluNyRfUKArQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=bzce1HQWI7vuB0PAmvHWX3tkS10mTiClkNMCcbitQwY=; b=My+mHYxZ8lbedg9LKpBknj0LO9b6k3pTwNRTrfIBKqnyOCh5cU9tTEALtprpnmGsT9thdD5HR/CrV0e1BNGnTbvnXF5oGUMT7g1JFu7q80gOeuihkpuUQK/HiS/dR6ZYzOreMK77SBXY3/dgJt121hut0KaaRiTV8jzlQTetwHesieYBVOfZZi6Lf0/PpLgXmLJemcVKFyWFtSxtIcPyxX9S97tiQsrD7cXGAbwaWKiinSdY8170YDoOj9DrqY3xCCFO9MznJkpijt4WwBCYhPyuTJ3dqli3hnRKRIOTncvr7gHZJ/M14jC//67xpCcfgjJwUx6Pq/GtpzidOGBIrA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=wdc.com; dmarc=pass action=none header.from=wdc.com; dkim=pass header.d=wdc.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sharedspace.onmicrosoft.com; s=selector2-sharedspace-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=bzce1HQWI7vuB0PAmvHWX3tkS10mTiClkNMCcbitQwY=; b=LWg/xlw+R/qhdJbJ39vyx5/+pVNKRFkOtyN26nlTvPyRuZhydPnyBCPy+xOmc5DgDLgVhiVIwN1ttjtRNQUIgQz3oXgu0CuwEBlBnsfYNx9nHXEeQvv69LEcY1vxPCdn7wZRZp1vR2d2zf3HTtSoK4iOyZcxEnC1eIEqmKjFCtk= Received: from BYAPR04MB5816.namprd04.prod.outlook.com (20.179.59.16) by BYAPR04MB5814.namprd04.prod.outlook.com (20.179.59.210) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2408.24; Thu, 7 Nov 2019 07:54:04 +0000 Received: from BYAPR04MB5816.namprd04.prod.outlook.com ([fe80::4176:5eda:76a2:3c40]) by BYAPR04MB5816.namprd04.prod.outlook.com ([fe80::4176:5eda:76a2:3c40%7]) with mapi id 15.20.2408.028; Thu, 7 Nov 2019 07:54:04 +0000 From: Damien Le Moal To: Andrea Vai , Alan Stern , Jens Axboe CC: Johannes Thumshirn , USB list , SCSI development list , Himanshu Madhani , Hannes Reinecke , Ming Lei , Omar Sandoval , "Martin K. Petersen" , Greg KH , Hans Holmberg , Kernel development list Subject: Re: Slow I/O on USB media after commit f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6 Thread-Topic: Slow I/O on USB media after commit f664a3cc17b7d0a2bc3b3ab96181e1029b0ec0e6 Thread-Index: AQHVV3qbTKYWY4pSG0OtJLbZzV/0bg== Date: Thu, 7 Nov 2019 07:54:04 +0000 Message-ID: References: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Damien.LeMoal@wdc.com; x-originating-ip: [199.255.47.8] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: c91f0dae-d85d-4f9a-b394-08d76357a8ea x-ms-traffictypediagnostic: BYAPR04MB5814: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:6430; x-forefront-prvs: 0214EB3F68 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(4636009)(136003)(39860400002)(346002)(376002)(396003)(366004)(199004)(189003)(71190400001)(71200400001)(446003)(110136005)(7416002)(6116002)(7736002)(3846002)(316002)(54906003)(305945005)(476003)(486006)(74316002)(53546011)(6506007)(102836004)(26005)(86362001)(7696005)(76176011)(33656002)(5660300002)(2906002)(52536014)(256004)(14444005)(66066001)(186003)(229853002)(81166006)(478600001)(8676002)(81156014)(25786009)(55016002)(2171002)(6246003)(14454004)(4744005)(66476007)(66556008)(64756008)(91956017)(66446008)(8936002)(4326008)(9686003)(66946007)(6436002)(76116006)(99286004);DIR:OUT;SFP:1102;SCL:1;SRVR:BYAPR04MB5814;H:BYAPR04MB5816.namprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: nmFpDR+pmjpwf22nWW7kL+ke+ZKMZir89DUWH3ieAi99qixikkqfCzlgg5v8FAPAKMoXYwuLS8y2EecwZXD+ktfudibXAY96hJeZysUrTuPMerFcEXyikIF9og6I5Ca+vFJYqm/7pocoSLZnOHZ54NPnNGdeBBmuLyXaIefD0SGZKp5EsYGLVR4ZmCYz26brJZB87wENrYUuK6Qubu164BDt7JhXG5yvjxkSUIgZmHtUA9bs68hMB1Z9t9yMwjMSq9acaVxyKd3vBWdSkILjglvaLTA0xZl5RXX9t7WDo3S537HrMYCa3Q1GYN0hyX1Iz8L3vPognfuqS7AYsBq7j5nyJUmCDutTC/mDYBiFw90uM1idIgN/7MF9h4MCyeiQmOT83gpZdrl/jf4mSQLfl4F8oQW2QwAncK0KjsEuYXDMk9XpDrzpuWZTQpHQP12g Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-Network-Message-Id: c91f0dae-d85d-4f9a-b394-08d76357a8ea X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Nov 2019 07:54:04.1993 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: NEvHkZwqamLEEzISMOD8rBulfc30NjgZbrxll8ll1kfGMydAy2v+9yC0myF4YHZrKQKgAd1q+8ggfgYTXUGZJg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR04MB5814 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 2019/11/07 16:04, Andrea Vai wrote:=0A= > Il giorno mer, 06/11/2019 alle 22.13 +0000, Damien Le Moal ha scritto:=0A= >>=0A= >>=0A= >> Please simply try your write tests after doing this:=0A= >>=0A= >> echo mq-deadline > /sys/block/> disk>/queue/scheduler=0A= >>=0A= >> And confirm that mq-deadline is selected with:=0A= >>=0A= >> cat /sys/block//queue/scheduler=0A= >> [mq-deadline] kyber bfq none=0A= > =0A= > ok, which kernel should I test with this: the fresh git cloned, or the=0A= > one just patched with Alan's patch, or doesn't matter which one?=0A= =0A= Probably all of them to see if there are any differences.=0A= =0A= > =0A= > Thanks, and bye,=0A= > Andrea=0A= > =0A= > =0A= =0A= =0A= -- =0A= Damien Le Moal=0A= Western Digital Research=0A=