From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 9A8E1A00E6 for ; Thu, 21 Mar 2019 10:53:48 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 3BFB31B492; Thu, 21 Mar 2019 10:53:48 +0100 (CET) Received: from mail-it1-f174.google.com (mail-it1-f174.google.com [209.85.166.174]) by dpdk.org (Postfix) with ESMTP id 7CCE31B486 for ; Thu, 21 Mar 2019 10:53:46 +0100 (CET) Received: by mail-it1-f174.google.com with SMTP id w15so3254392itc.0 for ; Thu, 21 Mar 2019 02:53:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flowmon.com; s=google; h=mime-version:from:date:message-id:subject:to; bh=yKqZqCZeU8GnpnOJk6EBiKPols2pxYrpBHWL9kJV7MU=; b=UnZFAekCxRTQdGuI8KaZfsxdsfzjxS61O5Y10U48ZEb+g3l85meV+k818vce8rHzM1 w5n6TUf64xqbkzHVhwaGi1c8EEbTWDa7g+PGX+WwBZflbIq9LN7QDIxH1XcJCwlTjNP2 kGP03l+/ZPn+UF5B65hoAbYFm0rPW3iwonuQOUCociAv7+kIXjd3+hRkJDjelSeC7LEO lsWLQZG6c4ip1bKHShyVIz/u2d9vCr/CAkAG0DTPWB9YA29kGjHeZu9nPkRrGh7RxE+x ZiAcWhLNbd6XtuYxZ1QdVgEZumrGLqkxNs2m9iYdpQ4L3p4zjo6sLi4sWE+0NFURnlMg Q2jw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=yKqZqCZeU8GnpnOJk6EBiKPols2pxYrpBHWL9kJV7MU=; b=eXGtLi9jgSv0WG0qyLjGSNlRfsC8XotJsJvkF4KCcH9/wUBs5TXZOG68k4W4yZI+48 g7vLP0SD+N6Kzp1fTLK6DXa9Ek7oK5jGzn5sMN6DVdcy8X12cdFu6Tc0bC5T9mGyRydt 9xfaSU45RmthblCXTcgkSgUuq52bHFvfineIq3Cry6rBE7vTAKQ9eTPoOGpx3L633tKK YkxogJt/9YoIt3eOj1ZNcZhdz0l8QS7O/8EzujT0fSsjtAKT3lIUNBj3s0DMGH5uXrj5 +i8yAvqOHJYGc4poUn1LoW7AGgt8vC0NseWQhqUWPNvR6sWEHI9XBOjbvqs/fTHiKFON iUvw== X-Gm-Message-State: APjAAAUf+GpN2uHvho3iUhWB89NweF6F5ITUXx435APFO/4kIQbgA7BE QYeMDa4vhdsa1uBYhcc7eLv8BXyxlMRaf+3fN2DEccENaBY= X-Google-Smtp-Source: APXvYqzK+/yDlp883DvNCeyDyrB7mvqybIvrziA1azGGp8LxzLTbCvMFe3/FeKMCgh7YhbYC1eA7bpmv/EZGWkNxs1c= X-Received: by 2002:a24:6b8c:: with SMTP id v134mr1900402itc.50.1553162025478; Thu, 21 Mar 2019 02:53:45 -0700 (PDT) MIME-Version: 1.0 From: =?UTF-8?B?VG9tw6HFoSBKw6Fuc2vDvQ==?= Date: Thu, 21 Mar 2019 10:53:34 +0100 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] X710 DA2 (2x10G) performance 64B packets X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org Sender: "users" Hello DPDK users, I am having an issue concerning the performance of X710 DA2 (2x10G) NIC when using testpmd (and also l2fwd) application on both ports. HW and SW parameters: CPUs: Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz x16 Disabled hyperthreading. All used lcores and ports are on the same NUMA node (0). Hugepages: 1024x 2MB on the NUMA node 0. RAM: 64 GB DPDK version: 18.05.1 Modue: IGB UIO GCC version: 4.8.5 When using testpmd application only on one port: ./testpmd -b 0000:04:00.0 -n 4 --lcore=0@0,2@2 -- --socket-num=0 --nb-cores=1 --nb-ports=1 --numa --forward-mode=rxonly 14.63 Mpps (64B packet length) - 0.01% packets dropped When using testmpd on both ports: ./testpmd -n 4 --lcore=0@0,2@2,4@4 -- --socket-num=0 --nb-cores=2 --nb-ports=2 --numa --forward-mode=rxonly 28.08 Mpps (64B packet length) - 3.47% packets dropped Does anybody have an explanation why am I experiencing this performance drop? Any suggestion would be much appreciated. Thank you Tomas