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Mon, 20 Jan 2020 04:48:37 +0000 Received: from BYAPR04MB5749.namprd04.prod.outlook.com ([fe80::a8ea:4ba9:cb57:e90f]) by BYAPR04MB5749.namprd04.prod.outlook.com ([fe80::a8ea:4ba9:cb57:e90f%5]) with mapi id 15.20.2644.026; Mon, 20 Jan 2020 04:48:36 +0000 From: Chaitanya Kulkarni To: Sagi Grimberg , "hch@lst.de" Subject: Re: [RFC PATCH 0/2] nvmet: add polling support Thread-Topic: [RFC PATCH 0/2] nvmet: add polling support Thread-Index: AQHVryK85gJ3GKafwE2Wl4D0J6eouQ== Date: Mon, 20 Jan 2020 04:48:36 +0000 Message-ID: References: <20191210062557.5171-1-chaitanya.kulkarni@wdc.com> 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=Chaitanya.Kulkarni@wdc.com; x-originating-ip: [199.255.45.62] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 2f0b5b65-dab2-48a5-674c-08d79d6402fd x-ms-traffictypediagnostic: BYAPR04MB5976: x-microsoft-antispam-prvs: wdcipoutbound: EOP-TRUE x-ms-oob-tlc-oobclassifiers: OLM:5516; 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X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-nvme@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 12/11/2019 05:01 PM, Sagi Grimberg wrote: > percpu threads per namespace? Sounds like the wrong approach. These > threads will compete for cpu time with the main nvmet contexts. Isn't having need_resched() placed in the polling thread should help with the one thread hogging the CPU ? Please have a look my reply and performance numbers for new patch. _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme