From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f182.google.com (mail-io0-f182.google.com [209.85.223.182]) by dpdk.org (Postfix) with ESMTP id E24B42946 for ; Sat, 9 Jul 2016 16:55:03 +0200 (CEST) Received: by mail-io0-f182.google.com with SMTP id s93so24372984ioi.3 for ; Sat, 09 Jul 2016 07:55:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to; bh=wQDT7szD1FDygTuO0tLGaK3fiSlnV0j/G6W6I343I2E=; b=eVTVz+9u7TGKSbDZl3/pfl6nA0llhTqoDkIqp8X+RiDCgWhP/aMXxEmwWptpuZkGgh DR4WPq/kqMYmBcdaR8zZGgtbLWlh2g1a7jqgGiy+QttoUrIH87DHoqXowww1vwPdu9rc mU5wjf9MMivfw/sCU60GWledpjiWGzFEqsIHOdFssK6t9cnTrbWVzAp5o3HDy1WtkX2b w7BZdavhMa2DNaX8c2GXpYoJyXkB+SwqKckB5lid/7y/b0sVr4gi2rZXnyaZhpwv91XL 5Dt3uujM7W/7BeBsD61/6X+/srKwRJg8V8Y8XMs3ZafW4sxrVtPzMz0tvWrsWr8+FFT+ 8YSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=wQDT7szD1FDygTuO0tLGaK3fiSlnV0j/G6W6I343I2E=; b=dk5sPiw5xZ8gvjuUj8Xc2z9hDeA4Y6sVyv1k2sxoCeiiWChia0EBETr3upbPa/qySl ageFF6bG03RTuN7kW46DGecJm6woRkBe65voztTtI/WKSqTQpZrDfyM+7sC0dtJ6aKc0 eBNgG+LCFkFW5tmqahtGxBmEWYQ2c5yYTbkN5vnsyVyL133fX+jMkKIZpO/qFwJAfkNu ykgv1uZhcKMNluNFonp/RFKk8FaDVqJQ0t15YFTDuKl8JGxCBrOK/bMBEkJy/xRS61kK KNz7Z1RxeE+eWjkR9Ghu/H+BkZQQg3BEvtsqjTrR5g8jenZxslyaKoGLWQjnGqDYqCgh PfoA== X-Gm-Message-State: ALyK8tL+EM6HqYgLEU4yD8f2VpDrZ+Lkedg/nZP+QdHE0K6Wp68KanFdQl8LURHyCbGIajpX8K8/otLh/R/pgA== X-Received: by 10.107.151.199 with SMTP id z190mr12330940iod.191.1468076103127; Sat, 09 Jul 2016 07:55:03 -0700 (PDT) MIME-Version: 1.0 Received: by 10.36.45.3 with HTTP; Sat, 9 Jul 2016 07:55:02 -0700 (PDT) From: kamal sivadas Date: Sat, 9 Jul 2016 20:25:02 +0530 Message-ID: To: users@dpdk.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: [dpdk-users] testpmd packet drop issue at 4.5 million pps X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 Jul 2016 14:55:04 -0000 Hi All, I am trying to run testpmd on Intel-XL710 NIC with one queue. I am seeing constant RX drops. Can someone help me to identify the problem here. System info: Cent OS 7. CPU optimized for performance. I followed http://dpdk.org/doc/guides-16.04/linux_gsg/nic_perf_intel_platform.html Traffic flow: 27Gbps, 4.3 million pps(average packet size is 780 bytes) DPDK version: 2.2 ./testpmd -l 4,5 -n 4 -- -i --portmask=3D0x1 --numa --nb-cores=3D1 --rxd=3D= 2048 --rss-udp Note: I tried with default RX descriptor size and that doesn=E2=80=99t work= , so increased to 2048. Increasing the number of forwarding core to 2 with 2 queue also didn=E2=80= =99t help. This is another command line option I tried but didn't help ./testpmd -l 4,5,6 -n 4 --socket-mem 2048,0 -- -i --port-numa-config=3D0,1 --socket-num=3D0 --portmask=3D0x1 --mbcache=3D512 --nb-cores=3D2 --rxq=3D= 2 --txq=3D2 --rxd=3D2048 --rss-udp --forward-mode=3Dio --port-topology=3Dchained --rxpt= =3D32 --rxht=3D32 --rxfreet=3D32 --rxwt=3D32 Test pmd start logs: io packet forwarding - CRC stripping disabled - packets/burst=3D32 nb forwarding cores=3D1 - nb forwarding ports=3D1 RX queues=3D1 - RX desc=3D2048 - RX free threshold=3D32 RX threshold registers: pthresh=3D8 hthresh=3D8 wthresh=3D0 TX queues=3D1 - TX desc=3D512 - TX free threshold=3D32 TX threshold registers: pthresh=3D32 hthresh=3D0 wthresh=3D0 TX RS bit threshold=3D32 - TXQ flags=3D0xf01 Any assist would be really helpful. Regards, Kamal