From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 8A40A49E0 for ; Thu, 8 Nov 2018 14:48:45 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Nov 2018 05:48:44 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,478,1534834800"; d="scan'208";a="278163381" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by fmsmga005.fm.intel.com with ESMTP; 08 Nov 2018 05:48:44 -0800 Received: from fmsmsx117.amr.corp.intel.com ([169.254.3.70]) by FMSMSX103.amr.corp.intel.com ([169.254.2.186]) with mapi id 14.03.0415.000; Thu, 8 Nov 2018 05:48:44 -0800 From: "Wiles, Keith" To: Bichan.Lu CC: "users@dpdk.org" Thread-Topic: [dpdk-users] pktgen-dpdk runts when start size is 64 Thread-Index: AdR3AfnjE1K8fPZCRpuEcxvzqoEu2AAqtbMA Date: Thu, 8 Nov 2018 13:48:43 +0000 Message-ID: <71F32FA1-4932-4EF2-9DE9-D81978612921@intel.com> References: <5825f8fd096d486eb8bce95502704f30@ACLDAG.ADVANTECH.CORP> In-Reply-To: <5825f8fd096d486eb8bce95502704f30@ACLDAG.ADVANTECH.CORP> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.237.220.99] Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-users] pktgen-dpdk runts when start size is 64 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: , X-List-Received-Date: Thu, 08 Nov 2018 13:48:46 -0000 > On Nov 8, 2018, at 2:12 AM, Bichan.Lu wrote: >=20 > Hi, >=20 > OS: CentOS 7.5.1804 > Pktgen version: pktgen-3.5.8 > DPDK verison: dpdk-18.08 >=20 > I use the pktgen in follows command. When I start pktgen, default PktSize= is 64, in the command I sad: >=20 > ./pktgen -l 0-4 -n 3 -- -P -m "[1:3].0,[2:4].1" > Pktgen:/> start all >=20 > Link State : ----Total= Rate---- > Pkts/s Max/Rx : 1487853/1487844 1491609/1491602 2979462= /2979446 > Max/Tx : 1491607/1491606 1487855/1487841 2979459/= 2979447 > MBits/s Rx/Tx : 999/1002 1002/999 2= 002/2002 > Broadcast : 0 0 > Multicast : 0 0 > 64 Bytes : 0 0 > 65-127 : 0 0 > 128-255 : 0 0 > 256-511 : 0 0 > 512-1023 : 0 0 > 1024-1518 : 0 0 > Runts/Jumbos : 8889515/0 8913610/0 > Errors Rx/Tx : 0/0 0/0 > ......< shown parts of pktgen >..... >=20 > Then will be get Runts. > I tried when size is 68, range will be in [64 Bytes], and no runts. > Pktgen:/> set 0 size 68 > Pktgen:/> set 1 size 68 > Pktgen:/> start all >=20 What is the hardware NIC as most of the hardware appends the FCS? Pktgen expects the NIC to append the FCS and there is a flag to disable tha= t feature? > I guess it may related about range, could help to check? > Thanks. >=20 > Best regards, > Bichan.Lu Regards, Keith