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Sat, 15 Sep 2018 23:43:12 +0000 Received: from CY4PR21MB0773.namprd21.prod.outlook.com ([fe80::d1f6:46cd:d8b4:880c]) by CY4PR21MB0773.namprd21.prod.outlook.com ([fe80::d1f6:46cd:d8b4:880c%5]) with mapi id 15.20.1164.014; Sat, 15 Sep 2018 23:43:12 +0000 From: "Michael Kelley (EOSG)" To: Yi Sun , "linux-kernel@vger.kernel.org" CC: "x86@kernel.org" , "chao.p.peng@intel.com" , "chao.gao@intel.com" , "isaku.yamahata@intel.com" , "michael.h.kelly@microsoft.com" , Tianyu Lan , KY Srinivasan , Haiyang Zhang , Stephen Hemminger , Jonathan Corbet Subject: RE: [PATCH v1 0/3] Enable PV qspinlock for Hyper-V Thread-Topic: [PATCH v1 0/3] Enable PV qspinlock for Hyper-V Thread-Index: AQHUS0WDN0wqvgXo+0iRNhmLe1uLJ6TyA9yg Date: Sat, 15 Sep 2018 23:43:12 +0000 Message-ID: References: <1536830005-37260-1-git-send-email-yi.y.sun@linux.intel.com> In-Reply-To: <1536830005-37260-1-git-send-email-yi.y.sun@linux.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=True; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: QZg4MJbrZ3JHk5m9lG+myZbjoMDDwCBKWUCF5XDQOvdefLnhpMidrBb/Bvuk7tMjFQOzaACO4538FU2BTZaylTFXlk7OHh82b/usrBTDHGwiJUGKtci5edH7UGMqL3rH9tR/bjWsGFJI+K6Lh9sHJ+ufr7G0Tkv+zCMsihaEiKlguQFShs/BQZeUfMfTrJkRKpaODcJt3NRKj+HVOrwyLmLbtd0FXjbOhi7aWTTCiyIyaOCBmW1qefdghNAb6yA8xvPKBbDOMlC2pIqRd7RCDpPF5WhOnD/SU9zMc4B7GmTBzGdfyJ82U6VZJfNs0LbJ+z0xQz2DXNZbVMHs9Ya7WVdYByIYqEkTgiemwID/hSM= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 36fd5399-9874-441c-0f8e-08d61b64fff0 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Sep 2018 23:43:12.2554 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0469 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >From Yi Sun Sent: Thursday, September 13, 2018 2:13 AM > This patch adds the necessary Hyper-V specific code to allow > PV qspinlock work on Hyper-V. >=20 Have you done any performance measurements with this new code, so that we know whether there is any improvement, or even potentially any degradation in some circumstances? Michael =20