From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id B2E50A0C41; Thu, 16 Sep 2021 13:16:09 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9D80F40151; Thu, 16 Sep 2021 13:16:09 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by mails.dpdk.org (Postfix) with ESMTP id 2B7884003F for ; Thu, 16 Sep 2021 13:16:08 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10108"; a="283537341" X-IronPort-AV: E=Sophos;i="5.85,298,1624345200"; d="scan'208";a="283537341" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Sep 2021 04:16:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,298,1624345200"; d="scan'208";a="553845219" Received: from orsmsx601.amr.corp.intel.com ([10.22.229.14]) by fmsmga002.fm.intel.com with ESMTP; 16 Sep 2021 04:16:02 -0700 Received: from orsmsx610.amr.corp.intel.com (10.22.229.23) by ORSMSX601.amr.corp.intel.com (10.22.229.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12; Thu, 16 Sep 2021 04:16:02 -0700 Received: from orsedg603.ED.cps.intel.com (10.7.248.4) by orsmsx610.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.12 via Frontend Transport; Thu, 16 Sep 2021 04:16:02 -0700 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.102) by edgegateway.intel.com (134.134.137.100) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2242.12; Thu, 16 Sep 2021 04:16:02 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=AVVI38tZxaAggQssqy4zei5pdBS+I8+8bwg64dw3XXKVbefR3WR13r5jM+SU5iIeCu0ixZn5S/hzbBP+e/cF/XfA4XLlJbvoeb77IWWdNY4c/KG4kKow0EtyU1PKxrLv/Pg6GTXW/Hfpc1TirM3zUtZtWWK18Cvy6UhXVKzZ7FNg46EgFeptQ4SOP6sfmsq3td1FYtQOiDtgyRWYAQZNidlO23hOCn1fX/AAqHORL1p4EnMYl4dk+9DnLPSrFEeyednf/f01ABEUzkimeX127Ye9bI0vnf+reKjTdPumQzLlVmk+8EvlZ013m70fiaP7xVPbpCab8artw/eret2DjA== 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; bh=O9w0S2PS34dSAbet0MBtHF0k0YjR42rDlvrElrTCsgU=; b=Zb/lgLoFu9xStBTVQXLVjUqytY24rgmla6OCpTksMTg7bMmFQrTVHtQDXKcrz8889MBrrXg4BFE2QjGGiXN/brm+z+olZ/Oexx0nykg/sRHrTxP7RP+Agrr4/wujDA1tMhwVlrm08DQK8gvA7td9obxYdh7x+3uKAY5J6JULwyPv2zag1qgwzqtQqHYWnOZAXGcB3sjp7o10AHLrC50Q7wGPtqAOmuuEsS7/YpXuWI3jPLwwpH20gUR52ykxuZBRnMNaoMDX+Hrd6lW4rQZl/46AHbCHVAuX9j9rchYhgUN7EoXnHFOnBwxG6c+xw/5BE4CKxy1MDFQESNswWxD51g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=O9w0S2PS34dSAbet0MBtHF0k0YjR42rDlvrElrTCsgU=; b=BHlzvbHNLXLYKLZh+pRSJ6+qqq24u0cVo7cuAlrjPooTZaP3SE/5mdA1R4J9mVtZqZXCpxw6zsnZt8Q28TQsW2n99o1+DiC4lpzJzlyrHPbyZdMJ4umkm4bXLNYYL+HIgpm6bQyGXX6v5MBRSFhqbPOidFlHwI11DIMs42MzPwc= Authentication-Results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; Received: from PH0PR11MB5000.namprd11.prod.outlook.com (2603:10b6:510:41::19) by PH0PR11MB4967.namprd11.prod.outlook.com (2603:10b6:510:41::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4523.14; Thu, 16 Sep 2021 11:15:58 +0000 Received: from PH0PR11MB5000.namprd11.prod.outlook.com ([fe80::747b:3a08:d1ec:31fc]) by PH0PR11MB5000.namprd11.prod.outlook.com ([fe80::747b:3a08:d1ec:31fc%5]) with mapi id 15.20.4523.016; Thu, 16 Sep 2021 11:15:58 +0000 To: Jiayu Hu , , CC: , , Cheng Jiang References: <1629463466-450012-1-git-send-email-jiayu.hu@intel.com> From: Ferruh Yigit X-User: ferruhy Message-ID: <2bdcfe6a-b3eb-701a-ba5d-ea83cebd6422@intel.com> Date: Thu, 16 Sep 2021 12:15:52 +0100 In-Reply-To: <1629463466-450012-1-git-send-email-jiayu.hu@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-ClientProxiedBy: DB6PR07CA0180.eurprd07.prod.outlook.com (2603:10a6:6:43::34) To PH0PR11MB5000.namprd11.prod.outlook.com (2603:10b6:510:41::19) MIME-Version: 1.0 Received: from [192.168.0.206] (37.228.236.146) by DB6PR07CA0180.eurprd07.prod.outlook.com (2603:10a6:6:43::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4544.6 via Frontend Transport; Thu, 16 Sep 2021 11:15:56 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: c215341f-40a2-4049-e98d-08d979035bb4 X-MS-TrafficTypeDiagnostic: PH0PR11MB4967: X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6790; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:PH0PR11MB5000.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(5660300002)(53546011)(44832011)(2906002)(107886003)(4744005)(6486002)(66946007)(66476007)(86362001)(31686004)(956004)(38100700002)(26005)(8676002)(83380400001)(6666004)(2616005)(16576012)(66556008)(186003)(8936002)(31696002)(316002)(508600001)(4326008)(36756003)(45980500001); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?cHc1UzJaeVBRTHRIMXBKYy9tUzlVZDNobTBNSytIc3lJZkIwVVB3cVlsNkhD?= =?utf-8?B?TlU3eW1Lb2VMcE1kbU5BSk9vcUs3aXBIZzJ5NkRwYmN3VndRTUNvSFNDZXor?= =?utf-8?B?Z05uckdyeEE4UjFSUFV1MmpHNzFSU002VElRZDJlREs0YkI5VER1cGVPWnNW?= =?utf-8?B?ZFdPZXprOVhhVnl6YW4ybzV4V0MxekdSTGdrWnFkUzNIVnJoQ3U0TVJsSHZa?= =?utf-8?B?aXcydGoxU1FQSi94V0MwQWxXdHI0Sjk3dEN0U3FrT2s2NmtJd2VpOHhQRkNQ?= =?utf-8?B?RHBBZlEzbitlK1I5WTN0YUJsbnQvQzJPNGp2Mm01NnE4djJFaE9pQmxmbDhz?= =?utf-8?B?QUszTjNBbDY2K1R6RS9rbXc1a01CbnZZa2FvK2JFcnJUbnhkd2lOSGNvbW1s?= =?utf-8?B?YWNUQUwwamx4SDhpVFc3STdWYWNzY3lsa0RpeUhPVWthdkpNQlN2SkluSzZY?= =?utf-8?B?UUxTSmVrSnhyR0huWHFLWnVIMXBjdFhjVCtURHJIMzUrcnA5KzhYcVFpKzAx?= =?utf-8?B?OUNxVzVIUHJNZTVzSmVGMG5xa1ZzbFBCeWgxZUxyMUZvVkVIQmUrQXhkZ2c5?= =?utf-8?B?T0c3VW5oeFUrZWQzQk9aS2wvUzVrdm83cE1mZkxtSmdpd2pmQ1hTNmNqRG0x?= =?utf-8?B?YmR0dHNtcURzaTY2NXRrbTVqMWZnMEQyOFZLYTNpeGhHOWhRaVZWQndBMTJT?= =?utf-8?B?U1pSTmVOaFBZVWFwUHhKcWN6aTFOVlFlQmVXM1pOME5tT1Y2d3NVejR5REhj?= =?utf-8?B?NHBrYjEvNlBJQWRPSWxLcDhFdG4rWmowTUFNZWc5Rm10Rmt0ejY5a0U0YXFQ?= =?utf-8?B?VVdiZlJUV2w2eU9JYVdaVWdjZWJhSDNjR0RtUFVUS3pWem5TYzZTY1ZMdjM4?= =?utf-8?B?M1pHdHlrdW05b05YMis0YVZ5aWlSTlFwejBRUTg2MDZYa1NiWWZaeW1mZGhU?= =?utf-8?B?ZU5qYTVVM0ZVaWI0dzgxR0R5cHBZdDhIbnlMRVNwUWdvVExwckdKMWtzSGF2?= =?utf-8?B?YkpYcU1BZk54b0V5enE2MHd5VmJDVjZ1Q2pBRTE4Wnk0cUd2MFVRMzIwVGJj?= =?utf-8?B?MnY1Z3l2TXVzMUkxcXlXYlRSeTRRcE5HcUlLeWI2aWFpT2hkNXlZb3BoRC9h?= =?utf-8?B?UEU4eGpPbU9DN1E5eDdRV0tkeUMreWRCYmhNZW5pekkvUXNpQmJvTVIwbkhs?= =?utf-8?B?cUtJaUkvQXpHVkhlellaU2J6My84dFIwdFVFd3hybkxwdDZiL25aWFROaWdw?= =?utf-8?B?blkvNnFzVkN2NXlmTExHMldYenIybDh3YnYyWjBtOTRja1ByQ2haWEdab2VJ?= =?utf-8?B?VjN3OU9wL1VwdXBJSWdNcysyRkRZT2ZRb05zU1p5blpXU21HOUx4aVRRSVRl?= =?utf-8?B?NGFISWV5Q3NKcHNCQnFLK0dJaEJRNXRoMG04OElnMUpPcmJJYkV2SGF2U3B6?= =?utf-8?B?MTN4WXZ1dVhJUTMwV2I3dEF1elZhbDFBS2F5clF1dGo5Tzd6eUk4MDVUdjRr?= =?utf-8?B?YldCVm5iOERUOFR4VkYydFBFWnVRNURHaGpmQ3owdDNBRFpqSnNMdFF6aklC?= =?utf-8?B?MXdxVlBwdENFVEE1d2xtUW9xY040emV6QVo3OUVMVmZrckhWbVZNb0hRRHYv?= =?utf-8?B?ZGxRUXJ6blJTV05UKzRBekxKaU55UVR1N3hqMEltNFdUVzEwOHA1VnVJTWZw?= =?utf-8?B?RnlPdkJDUVdLMXducyswbE1NZ244aXZ5YlM2R3JUbFlaR2M4MWl0cE03RzdL?= =?utf-8?Q?PtWGE0OEPPJkqxQxnJS8cjUme2p/SiHBUXYTty1?= X-MS-Exchange-CrossTenant-Network-Message-Id: c215341f-40a2-4049-e98d-08d979035bb4 X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB5000.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Sep 2021 11:15:58.2879 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: X/mchxAn8EdcxFiFdrtgHWHPcGSez4f8S0YwDTnklR5afYK50Y6xPBiQ3eab47/eXGJMV0Liosc3XoKJRv+8Ew== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB4967 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH] vhost: remove copy threshold for async vhost X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 8/20/2021 1:44 PM, Jiayu Hu wrote: > Copy threshold is introduced in async vhost data path to select > the appropriate copy engine to do copies for higher efficiency. > However, it may cause packets out-of-order, and it also causes > data path performance unpredictable. > Just checking, if the patch is fixing data performance issue, should it be backported? > Therefore, this patch removes copy threshold support in async vhost > data path. > > Signed-off-by: Jiayu Hu > Signed-off-by: Cheng Jiang <...>