From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id A582B2B8B; Mon, 19 Nov 2018 14:35:12 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Nov 2018 05:35:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,252,1539673200"; d="scan'208";a="109341941" Received: from istokes-mobl1.ger.corp.intel.com (HELO [10.252.8.216]) ([10.252.8.216]) by fmsmga001.fm.intel.com with ESMTP; 19 Nov 2018 05:35:09 -0800 To: vkrishnabhat k , ovs-discuss@openvswitch.org, ovs-dev@openvswitch.org, ovs-build@openvswitch.org, users@dpdk.org, dev@dpdk.org References: From: Ian Stokes Message-ID: <3ddd6956-4cc1-d10e-59f8-e58db5f5d1d3@intel.com> Date: Mon, 19 Nov 2018 13:35:08 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [ovs-dev] Packet Drop Issue in OVS-DPDK L2FWD Application X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Nov 2018 13:35:13 -0000 On 11/18/2018 8:16 PM, vkrishnabhat k wrote: > Hi Team, > > I am new to OVS and DPDK. While I am using l2fwd application with OVS and > DPDK I am seeing packet drop issue in OVS bridge. > > Topology : My topology has Ubuntu machine (Ubuntu 18.04 LTS). I have > installed Qemu-KVM 2.11.1 version. Also I am using OVS-DPDK. Please find > the detailed topology attached with this mail. I have bound two NICs (Intel > 82599ES 10-gigabit ) to dpdk IGB_UIO driver and also have added same ports > in to OVS bridge "br0". I am trying to send the bidirectional traffic from > both the port and measure the throughput value for the l2fwd application. > > Could you please help me with below questions to understand l2fwd better. > Hi, just a few questions to clarify, I assume you mean you are running the DPDK sample app 'l2fwd' in a Virtual machine that is also connected to bridge br0 via a vhostuser port? > What is the reason for packet drops in OVS bridge ? > What is the expected throughput value for l2fwd ? > How to improve the performance of l2fwd to get better throughput value ? > Is it possible to send or can l2fwd handle layer 7 traffic ? > > I tried tuning performance by adding more number of Rx queues and > increasing the Rx queue size as per the link " > http://docs.openvswitch.org/en/latest/intro/install/dpdk/", but it didn't > help much. > Can you provide what versions of OVS and DPDK are being used in the host and VM instances? > I have attached screen shots of the Topology, DPDK port statistics, OVS > configurations with this mail. I don't see these attached, they may have been filtered. Could you copy the output in these to the mail in text. Thanks Ian > > It will be really great if you could help me with this. > > Look forward to hear from you. > > Thanks in advance. > > Regards, > Venkat > > > > _______________________________________________ > dev mailing list > dev@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev >