From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0091.outbound.protection.outlook.com [65.55.169.91]) by dpdk.org (Postfix) with ESMTP id A30BA95A5 for ; Thu, 7 Jan 2016 07:15:06 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=SonusNetworks.onmicrosoft.com; s=selector1-sonusnet-com; h=From:To:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=43jEQnH+m1FSqaqhmT1l4ENAH1fLw2KPXlf90jCkRBg=; b=BZE3d2LavFqRq7265TNF80tChvFWKimXQQDDCggeEH8YJcqhw0CzOkIGPRn/0brJJj3zJ8dU6Y5eSaQJGLvX/E26XnWyOU73K+oBI/EonJyLsm7B/6m7evd4iM9Y0wEsYHuyoPZRdWvzz2bkFZ6t+vNojcPOW2381XdqUH9svwE= Received: from BN3PR0301MB1202.namprd03.prod.outlook.com (10.161.207.155) by BN3PR0301MB1203.namprd03.prod.outlook.com (10.161.207.156) with Microsoft SMTP Server (TLS) id 15.1.361.13; Thu, 7 Jan 2016 06:15:04 +0000 Received: from BN3PR0301MB1202.namprd03.prod.outlook.com ([10.161.207.155]) by BN3PR0301MB1202.namprd03.prod.outlook.com ([10.161.207.155]) with mapi id 15.01.0361.006; Thu, 7 Jan 2016 06:15:04 +0000 From: "Dey, Souvik" To: "dev@dpdk.org" Thread-Topic: tx_burst errors seen with virtual pmds Thread-Index: AdFJEroo/Pehexp0S+W2DmX07vcsDQ== Date: Thu, 7 Jan 2016 06:15:02 +0000 Message-ID: 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=sodey@sonusnet.com; x-originating-ip: [121.242.142.135] x-microsoft-exchange-diagnostics: 1; BN3PR0301MB1203; 5:fegDALl6K2aL4aBAPKXl0EPbhwq7kA6dN7wuohn0501TcmxtxyypwDZiAHmVsM9RPIfzgti18pYqdvVYBF6h1jEimdYmd/Gi8hUVf2gmT3XLYHQGFlWkzCvEMLr4fSOHTCzszT1aQdgHjty6pnIv0Q==; 24:9s0h/fq4TiSg0l9a+mtbNACcA/feaMKkfpN+q5SNGpOdKY5rELujqfxcgaJVryCUzB6JG5utVaz601QTsH629MnqPvDx2WHmCDZIwV1JB+U= x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:BN3PR0301MB1203; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(601004)(2401047)(520078)(8121501046)(5005006)(3002001)(10201501046); SRVR:BN3PR0301MB1203; BCL:0; PCL:0; RULEID:; SRVR:BN3PR0301MB1203; x-forefront-prvs: 0814A2C7A3 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(6009001)(199003)(53754006)(189002)(122556002)(5001960100002)(229853001)(50986999)(19625215002)(450100001)(86362001)(6116002)(10400500002)(74316001)(19580395003)(16236675004)(92566002)(33656002)(105586002)(2900100001)(5004730100002)(99286002)(40100003)(1096002)(2501003)(97736004)(101416001)(19300405004)(5008740100001)(77096005)(3846002)(11100500001)(87936001)(586003)(81156007)(1730700002)(189998001)(5003600100002)(106356001)(2351001)(102836003)(790700001)(110136002)(1220700001)(107886002)(54356999)(66066001)(5002640100001)(76576001)(15975445007)(2906002); DIR:OUT; SFP:1101; SCL:1; SRVR:BN3PR0301MB1203; H:BN3PR0301MB1202.namprd03.prod.outlook.com; FPR:; SPF:None; PTR:InfoNoRecords; A:1; MX:1; LANG:en; received-spf: None (protection.outlook.com: sonusnet.com does not designate permitted sender hosts) spamdiagnosticoutput: 1:23 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: sonusnet.com X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jan 2016 06:15:02.8338 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 29a671dc-ed7e-4a54-b1e5-8da1eb495dc3 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR0301MB1203 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-dev] tx_burst errors seen with virtual pmds X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jan 2016 06:15:07 -0000 Hi All, While trying call load with virtio_pmd/vmxnet3_pmd , I am s= eeing that at around 100Mbps, we are having tx_burst errors. We are curren= tly using DPDK 2.1 and send 1 packet at a time. When we try the same with i= xgbe_vf we are not seeing similar drops. Is there any issues with the virtu= al pmds which is causing this tx drops. We are using tx descriptor as 1024= and 1 tx queue to send out packets. -- Regards, Souvik