From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.iitb.ac.in (smtp1.iitb.ac.in [103.21.127.13]) by dpdk.org (Postfix) with ESMTP id BC031FB54 for ; Thu, 19 Jan 2017 07:47:02 +0100 (CET) Received: from ldns2.iitb.ac.in (ldns2.iitb.ac.in [10.200.12.2]) by smtp1.iitb.ac.in (Postfix) with SMTP id 80FE911D for ; Thu, 19 Jan 2017 12:17:01 +0530 (IST) Received: (qmail 16106 invoked by uid 510); 19 Jan 2017 12:17:01 +0530 X-Qmail-Scanner-Diagnostics: from 10.200.1.25 by ldns2 (envelope-from , uid 501) with qmail-scanner-2.11 spamassassin: 3.4.1. mhr: 1.0. {clamdscan: 0.99.2/22912} Clear:RC:1(10.200.1.25):SA:0(0.0/5.6):. Processed in 2.804582 secs; 19 Jan 2017 12:17:01 +0530 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on ldns2.iitb.ac.in X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.6 tests=IITB_ORIG,PROPER_IITB_MSGID autolearn=disabled version=3.4.1 X-Spam-Pyzor: Reported 0 times. X-Envelope-From: ppnaik@cse.iitb.ac.in X-Qmail-Scanner-Mime-Attachments: | X-Qmail-Scanner-Zip-Files: | Received: from unknown (HELO ldns2.iitb.ac.in) (10.200.1.25) by ldns2.iitb.ac.in with SMTP; 19 Jan 2017 12:16:58 +0530 Received: from jeeves.cse.iitb.ac.in (miller.cse.iitb.ac.in [10.129.3.1]) by ldns2.iitb.ac.in (Postfix) with ESMTP id 4E6AB3418E8; Thu, 19 Jan 2017 12:16:58 +0530 (IST) Received: by jeeves.cse.iitb.ac.in (Postfix, from userid 51934) id 3E7758C2342; Thu, 19 Jan 2017 12:16:58 +0530 (IST) Received: from [10.129.41.21] (unknown [10.129.41.21]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by jeeves.cse.iitb.ac.in (Postfix) with ESMTPSA id C40F38C232D; Thu, 19 Jan 2017 12:16:57 +0530 (IST) Message-ID: <588060E8.5010508@cse.iitb.ac.in> Date: Thu, 19 Jan 2017 12:17:04 +0530 From: Priyanka User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: "users@dpdk.org" , "dev@dpdk.org" Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Subject: [dpdk-dev] Performance issue in DPDK setup 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: Thu, 19 Jan 2017 06:47:03 -0000 Hi All, We have VMs on a physical server with both VMs having 1 core 7 GB RAM with DPDK 16.04. The VMs are communicating using SR-IOV (per VM 1 VF is assigned). We are performance benchmarking the setup with our application which sends burst of packet on the sender VM and receiver VM receives it in a ring. But we are unable to get good performance at L2 layer also. The problem we noticed is that if we attempt to send a burst of 1 lakh (1,00,000) packet at a go, the receiver side is able to receive only 40,000 packets. We feel there is some buffer overflow happening but we cannot trace it. So, we feel a uniform rate of sending packet and not a huge burst would be a better application for benchmarking. Is there a application available in DPDK where we can specify the sending rate i.e. ask the application to send 1 Gbps traffic etc, so that it would send 1 Gb traffic uniformly in the second. Please guide us on this. Thanks, Priyanka