From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yongseok Koh Subject: Re: Issue with pktgen-dpdk replaying >1500bytes pcap on MCX4 Date: Wed, 11 Oct 2017 11:59:08 -0700 Message-ID: <20171011185907.GA23268@yongseok-MBP.local> References: <5f5aba8a-0dd2-fd64-891b-569d2a4627c8@corp.ovh.com> <5cfff93d-213c-af2b-431f-437cd2eec6fc@corp.ovh.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "Wiles, Keith" , "dev@dpdk.org" To: Damien Clabaut Return-path: Received: from EUR03-AM5-obe.outbound.protection.outlook.com (mail-eopbgr30075.outbound.protection.outlook.com [40.107.3.75]) by dpdk.org (Postfix) with ESMTP id D1E6C1B1C2 for ; Wed, 11 Oct 2017 20:59:23 +0200 (CEST) Content-Disposition: inline In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Thu, Sep 28, 2017 at 08:44:26PM +0000, Wiles, Keith wrote: > > > On Sep 26, 2017, at 8:09 AM, Damien Clabaut wrote: > > > > Hello Keith and thank you for your answer, > > > > The goal is indeed to generate as much traffic per machine as possible (we use pktgen-dpdk to benchmark datacenter routers before putting them on production). > > > > For this we use all available CPU power to send packets. > > > > Following your suggestion, I modified my command to: > > > > ./app/app/x86_64-native-linuxapp-gcc/pktgen -l 0-7 -- -m 1.0 -s 0:pcap/8500Bpp.pcap > > > I just noticed you were sending 8500 byte frames and you have to modify Pktgen > to increase the size of the mbufs in the mempool. I only configure the mbufs > to 1518 byte buffers or really 2048 byte, but I only deal with 1518 max size. > The size can be changed, but I am not next to a machine right now. Hi Damien, Could you manage to resolve this issue? Keith mentioned pktgen doesn't support jumbo frames w/o modifying code. Do you still have an issue with Mellanox NIC and its PMDs? Please let me know. Thanks Yongseok