Received: by 2002:a25:683:0:0:0:0:0 with SMTP id 125csp81146ybg; Thu, 11 Jun 2020 17:51:53 -0700 (PDT) X-Google-Smtp-Source: ABdhPJySpTDS5yUUC8hO4g0haRUkYLfpFYrues7bobXmPlCQOp3M4/PU3qMKQA8LOGP1Y94aayeR X-Received: by 2002:a17:906:3951:: with SMTP id g17mr11247682eje.414.1591923113258; Thu, 11 Jun 2020 17:51:53 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1591923113; cv=pass; d=google.com; s=arc-20160816; b=TtgdXJY5+kSQ2mpjeo5C4ZRYDgEcW+OKIP8VGxPgXLCc4UwmkFdQueM8Cpdy68XHa4 H/OhXFqT73zhnEkTQooC07UVmbB+9OeoripZTOYZ5inzC453MKM+MUQAA4C98B/QwdhM ZzbDICuiaUAxBQfvk2c4th9fC8+Rn343aRClhdXZTPst4Dtmt1QgvxZGc74GQjxoNlNq T1EcdMly5D9ZA98Nu2SHEsJGsDS3mFmYA+Yo/FCgt6KoCYEXb5xMnZYQIrtWRdhLI8zl AjgWQZDdVAZOMRUC4wGj49/E8jd/7HzoS4TeFZKpGRvqsYaOli2ZVVMqZ+IQE5HGqNKp e9og== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=azDjWR9doyCywmdhAdppsha7g06leW4SRB9ro9Thbhw=; b=JnYvuHUPKVKqKjbvMy4a26J3GdoB3LARAtKL5AhDefJ1ZdReKGToLW3UKT7Wuh74xq 37LcWU3ZHJ2Y3ABn93l/Q2qDyVfmuMVHNz922u0Td/Rz+KPcrYvmWnHUzW3Ov7ixjTCG SIZccukbwGSPymNjYeHPCX4ONwUUYMOhjYizy/dRDGcnG7ZR+MboqW59su/JkjE3YeN/ gt7lRreajpcKkmBAke6zc8T194Z3Im1+qkVmFAF6M/CXhJW8vUFtIMem9w0gD+6IY0Iq mF4TlQj3XUVtq85HoEBnEsLzDGIaCzoe+T2jEFV6Vc9UdwZg2REutp1s4jXpeXbntV5C DTNg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b="MWTbei/s"; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id c22si3070072edx.584.2020.06.11.17.51.25; Thu, 11 Jun 2020 17:51:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b="MWTbei/s"; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726349AbgFLAtW (ORCPT + 99 others); Thu, 11 Jun 2020 20:49:22 -0400 Received: from mail-eopbgr80050.outbound.protection.outlook.com ([40.107.8.50]:35200 "EHLO EUR04-VI1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726305AbgFLAtV (ORCPT ); Thu, 11 Jun 2020 20:49:21 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TgKvDs0itCNwBoNwvZZH+rY3ZgMy+fhOlHqiZ7kRZn7V3uJRMf/NruPVxqA64+I8swwiUAy9oNXxbw309VJhv/TgOUbzpHKTgrS38FQi/xTweGViSYkmXK3HvAzQiqfDhFXWzxBtNUhBeYVA0SWXM/jbbuFYangpW8eazBKX68AbH0/SZVp59uYzFDfd2AtUrQYekrWDROG/qr+vuhfATBgLUPaitcJpcG7Xu06aJ5BfFZ6/GHBJcZfuIS/RG6ccqv4tmrIZA9gZItKgCJ6/iB55SDjaU3MU4vp4bMuYKWT2Q69J05Q2wwNhorDVmauOoYrDuGrC8VuvFzM1XtEgAQ== 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=azDjWR9doyCywmdhAdppsha7g06leW4SRB9ro9Thbhw=; b=TOWCXRnT36GEbdqOoXlDJCfDt1QjJV4hlSwtZOge4vBrgtwHN3hN6Wn/KJ4y+dGkkubMz2gpE6n1PbPaSKbKP/s75jQ0RMP3K8OytIlwGw+znL9006B7jWLtV5KB75IiXfZu/WNvd+UFQfny6NCz8PxPjE9vlTjsh+wnbMCvomt8o7SS2EVZuI+snp54wx6KDnyIxBkIJnUjr+PHtBYj/2s9/+iym3Jdvt38VN5qUshJVVqERdOC5D6BDSd5kZo8JnEex+JvX5GId2FtH80GbpmPYzx0SfFQq50xbN60ZcpKNKlWLuSYvHMIegRYXwqdEYzD+I9tT4QlgwZbFz6+2w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=azDjWR9doyCywmdhAdppsha7g06leW4SRB9ro9Thbhw=; b=MWTbei/sBegLJXvjA/Bd0ZP8NYCsufMX2+VZGm/6VSIeDtP+b8tcnDbPoEPo8cMN7wb81zsfA2jFDKgGsi6oFwL8aNBAlcgDnU/C8fPXeMWNZbmxkGckWFKsSIjwIxgNT3psRwIAkU5nM2RQIvXyYPPnGb0/AZw4RKQ2vdrf1yw= Received: from AM0PR04MB4772.eurprd04.prod.outlook.com (2603:10a6:208:c2::17) by AM0PR04MB5281.eurprd04.prod.outlook.com (2603:10a6:208:c6::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.19; Fri, 12 Jun 2020 00:49:17 +0000 Received: from AM0PR04MB4772.eurprd04.prod.outlook.com ([fe80::e906:2df6:5f0f:8c01]) by AM0PR04MB4772.eurprd04.prod.outlook.com ([fe80::e906:2df6:5f0f:8c01%2]) with mapi id 15.20.3066.023; Fri, 12 Jun 2020 00:49:17 +0000 From: Jiafei Pan To: Kurt Kanzenbach , Vladimir Oltean CC: "linux-rt-users@vger.kernel.org" , lkml , "rcu@vger.kernel.org" , Colin King , Jiafei Pan Subject: RE: [EXT] Re: stress-ng --hrtimers hangs system Thread-Topic: [EXT] Re: stress-ng --hrtimers hangs system Thread-Index: AQHWOzjXl4hxTFW9UUeYcrHfuUnL/6jKAZSAgAaAYICAAN+6AIACzZKQ Date: Fri, 12 Jun 2020 00:49:17 +0000 Message-ID: References: <4781d250-9a29-cef3-268d-7d83c98bf16a@gmail.com> <87wo4lekm5.fsf@kurt> <87y2ovzcmd.fsf@kurt> In-Reply-To: <87y2ovzcmd.fsf@kurt> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: linutronix.de; dkim=none (message not signed) header.d=none;linutronix.de; dmarc=none action=none header.from=nxp.com; x-originating-ip: [124.64.121.250] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 781a382e-ef78-41cc-007d-08d80e6a6f99 x-ms-traffictypediagnostic: AM0PR04MB5281: x-ld-processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6430; x-forefront-prvs: 0432A04947 x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: V+dRRHJL7awiM+BhwM2TMx4BqatQNDC1Anmz2xesa+54O5sPS+vCaDCiL8sfN+CKGMLZzn+lYQEnHLyNhD7E5784Gspxlm0+hltWwpTLX6Tnt7Nt2kXVDss4EKo9xdOk2SqfoLEYYjMCgpazYm735wNiSwWv6x40F2hEPt3m0rOzueKtjxMXOUefpNbu8uHPXq2nJLnP11jaY7TXQkey5cZHAahqKWB5mS1S1Px6rSpBscV2oZXvcFnkUOag9VaOK3rsT8Zl4ok98tyE1mvbLDLEqb7nsk+MXmVtCttpB5d18JL5wludwGIioc+vvHbrNKDDy/2XIg2o8pH8/aQkDg== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR04MB4772.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(136003)(366004)(376002)(39860400002)(346002)(396003)(86362001)(4326008)(66556008)(52536014)(6506007)(8676002)(8936002)(66946007)(66476007)(53546011)(76116006)(66446008)(64756008)(26005)(4744005)(5660300002)(186003)(33656002)(316002)(110136005)(2906002)(55016002)(44832011)(54906003)(71200400001)(9686003)(478600001)(83380400001)(7696005);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 781a382e-ef78-41cc-007d-08d80e6a6f99 X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Jun 2020 00:49:17.2776 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: MH1NUdLerpDX/QxxBGsD38LzbfNf7LCMH4n9jPrVzzmtvUMcECciI4+n0Z9poIAhytyvrAbrNZ5nP61vj2dqgg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5281 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Kurt, May I know whether you used "root" user to run stress-ng? using "root" user= will change the scheduler to be "SCHED_RR", so would you please share test= result with root and non-root users? Thanks.=20 Best Regards, Jiafei. -----Original Message----- From: linux-rt-users-owner@vger.kernel.org On Behalf Of Kurt Kanzenbach Sent: Wednesday, June 10, 2020 1:58 PM To: Vladimir Oltean Cc: linux-rt-users@vger.kernel.org; lkml ; rc= u@vger.kernel.org; Colin King Subject: [EXT] Re: stress-ng --hrtimers hangs system Hi Vladimir, On Tue Jun 09 2020, Vladimir Oltean wrote: > Just out of curiosity, what and how many CPU cores does your ARM64 box=20 > have, and what frequency are you running them at? > Mine is a dual-core A72 machine running at 1500 MHz. That particular machine has a dual core Cortex A53 running at 1GHz. Thanks, Kurt