From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from usevmg21.ericsson.net (usevmg21.ericsson.net [198.24.6.65]) by dpdk.org (Postfix) with ESMTP id F38BD5A98 for ; Tue, 27 Jan 2015 20:30:39 +0100 (CET) X-AuditID: c6180641-f79916d00000623a-2b-54c788561919 Received: from EUSAAHC006.ericsson.se (Unknown_Domain [147.117.188.90]) by usevmg21.ericsson.net (Symantec Mail Security) with SMTP id D5.8B.25146.65887C45; Tue, 27 Jan 2015 13:45:10 +0100 (CET) Received: from EUSAAMB107.ericsson.se ([147.117.188.124]) by EUSAAHC006.ericsson.se ([147.117.188.90]) with mapi id 14.03.0195.001; Tue, 27 Jan 2015 14:30:38 -0500 From: Alexandre Frigon To: "dev@dpdk.org" Thread-Topic: Pktgen-DPDK rate and traffic inconsistency problem Thread-Index: AdA6TAAeo7ZX5X/gQHqE2Z04+NrY+A== Date: Tue, 27 Jan 2015 19:30:38 +0000 Message-ID: <3C433001F624134981FFEE5BA9665CCC081157@eusaamb107.ericsson.se> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [147.117.188.10] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrILMWRmVeSWpSXmKPExsUyuXRPlG5Yx/EQgwWTTCzefdrO5MDo8WvB UtYAxigum5TUnMyy1CJ9uwSujO0NT5gKrnNUPP5+hrGB8TZbFyMnh4SAicT6u3eYIGwxiQv3 1oPFhQSOMEr8mJIDYS9nlPh0XRDEZhMwk9i86zA7iC0ioCgxfeJksHphAWuJ3uXboOIOEm/O LoKy9SSe79jMDGKzCKhKvDq5HizOK+AtcXprFwuIzQi09/upNWA3MAuIS9x6Mh/qHgGJJXvO M0PYohIvH/9jhbCVJCYtPccKUa8jsWD3JzYIW1ti2cLXzBDzBSVOznzCMoFReBaSsbOQtMxC 0jILScsCRpZVjBylxalluelGhpsYgWF8TILNcQfjgk+WhxgFOBiVeHg39B0LEWJNLCuuzD3E KM3BoiTOW3blYIiQQHpiSWp2ampBalF8UWlOavEhRiYOTqkGRpvZN86fvHJB9sy7lXu12Nt5 /77nKZ3SJBoe4+b9TPv1Ac2MLwdd2m14C3jW32L9bhKl2vRr48c9k15/4dt8RTZ9ne1Et4Lj ZhN8+OdLMlfEzNNrLWdeL7f+1pv0310tu8QrSzl1L7E33f9zYH/U2VvHdf+wXesr/dH9wVpI 6tsRbVvrrgsse5VYijMSDbWYi4oTAe6na51EAgAA Subject: [dpdk-dev] Pktgen-DPDK rate and traffic inconsistency problem 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, 27 Jan 2015 19:30:40 -0000 Hi all,=20 I'm using dpdk 1.8 and pktgen-dpdk 2.8 to generate traffic on a back-to-ba= ck setup both equipped with 82599EB 10-Gigabit NIC.=20 The problem is when I start it, pktgen indicates 10000Mbits/s Tx with 64B p= acket size, but I'm receiving about 15% of it on the other end.=20 This percentage seems to be proportional with the packet size. e.g.=20 Using nload to read Rx traffic Pktgen: Tx: 10000Mbits/s =3D=3D> Other end: Rx 1660 Mbits/s Rate: 100% =09 Pkt size: 64B =09 e.g 2 Pktgen: Tx: 10000Mbits/s =3D=3D> Other end: Rx 9385 Mbits/s Rate: 100% Pkt size: 1518B Pktgen is started with this command on a Xeon(R) CPU E31270 @ 3.40GHz ./app/pktgen -c 1f -n 3 --proc-type auto --socket-mem 1024 --file-prefix pg= -- -p 0x3 -P -N -m "[1:3].0, [2:4].1" Is there something I'm not configuring correctly or something I have miss? Also, the % rate is acting strangely since anything above 50% doesn't chan= ge the Tx rate and anything below is modifying it e.g Tx: 10000Mbits/s 5000Mbits/s %Rate: >=3D50% 25% =09 Thanks Alexandre F.