From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from we2-f167.wedos.net (w-smtp-out-7.wedos.net [46.28.106.5]) by dpdk.org (Postfix) with ESMTP id 393F2C4E2 for ; Tue, 28 Jul 2015 20:15:51 +0200 (CEST) Received: from ([147.229.13.147]) by we2-f167.wedos.net (WEDOS Mail Server mail2) with ASMTP (SSL) id PDR00049 for ; Tue, 28 Jul 2015 20:15:49 +0200 Date: Tue, 28 Jul 2015 20:13:36 +0200 From: Jan Viktorin To: dev@dpdk.org Message-ID: <20150728201336.43239fd0@pcviktorin.fit.vutbr.cz> Organization: RehiveTech MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: [dpdk-dev] lost when learning how to test dpdk X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jul 2015 18:15:52 -0000 Hello all, I am learning how to measure throughput with dpdk. I have 4 cores Intel(R) Core(TM) i3-4360 CPU @ 3.70GHz and two 82545GM NICs connected together. I do not understand very well, how to setup testpmd. I've successfully bound the NICs to dpdk: $ dpdk_nic_bind --status Network devices using DPDK-compatible driver ============================================ 0000:03:00.0 '82545GM Gigabit Ethernet Controller' drv=uio_pci_generic unused=e1000 0000:03:02.0 '82545GM Gigabit Ethernet Controller' drv=uio_pci_generic unused=e1000 Network devices using kernel driver =================================== 0000:00:19.0 'Ethernet Connection I217-V' if=eno1 drv=e1000e unused=uio_pci_generic *Active* Other network devices ===================== and then I tried to run testpmd: sudo ./testpmd -b 0000:03:00.0 -b 0000:03:02.0 -c 0xf -n2 -- --nb-cores=1 --nb-ports=0 --rxd=2048 --txd=2048 --mbcache=512 --burst=512 ... EAL: Ask a virtual area of 0x400000 bytes EAL: Virtual area found at 0x7f1549800000 (size = 0x400000) EAL: Requesting 1024 pages of size 2MB from socket 0 EAL: TSC frequency is ~3699999 KHz EAL: Master lcore 0 is ready (tid=de94a8c0;cpuset=[0]) EAL: lcore 2 is ready (tid=487fd700;cpuset=[2]) EAL: lcore 3 is ready (tid=47ffc700;cpuset=[3]) EAL: lcore 1 is ready (tid=48ffe700;cpuset=[1]) EAL: No probed ethernet devices EAL: Error - exiting with code: 1 Cause: Invalid port 0 I tried --nb-ports={0,1,2} but neither of them works. BTW, what does this option it mean? :) I could not find any description in the docs nor in the help (maybe I've omitted something). Well, if I manage the testpmd to work I need a packet generator, right? I've downloaded the dpdk-pktgen. And I am lost again. How can I start it? After several attempts (mostly trying to use the pktgen-master/slave.sh, what is their purpose?), the most "successful" output was: ... EAL: Detected lcore 0 as core 0 on socket 03 handles port 1 rx & core 4 handles port 0-7 tx EAL: Detected lcore 1 as core 1 on socket 0 as it does not matter to the syntax. EAL: Detected lcore 2 as core 0 on socket 0 EAL: Detected lcore 3 as core 1 on socket 0p/app/x86_64-native-linuxapp-gcc (master *%=) EAL: Support maximum 128 logical core(s) by configuration. EAL: Detected 4 lcore(s) EAL: No free hugepages reported in hugepages-2048kB PANIC in rte_eal_init(): Cannot get hugepage information 6: [./pktgen(_start+0x29) [0x41abc9]] 5: [/usr/lib/libc.so.6(__libc_start_main+0xf0) [0x7f93eadcc790]] 4: [./pktgen(main+0x140) [0x419d80]] 3: [./pktgen(rte_eal_init+0xd2b) [0x4bb8bb]] 2: [./pktgen(__rte_panic+0xc9) [0x419ae5]] 1: [./pktgen(rte_dump_stack+0x16) [0x4c3946]] Aborted (core dumped) I'd like to run a simple scenario, just sending packets from one NIC to the other (or something similar) and measure the throughput. Could you please help me? Regards Jan Viktorin -- Jan Viktorin E-mail: Viktorin@RehiveTech.com System Architect Web: www.RehiveTech.com RehiveTech Brno, Czech Republic