From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 50AB17FD1 for ; Fri, 10 Oct 2014 09:39:55 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 10 Oct 2014 00:44:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,690,1406617200"; d="scan'208";a="586555025" Received: from irsmsx101.ger.corp.intel.com ([163.33.3.153]) by orsmga001.jf.intel.com with ESMTP; 10 Oct 2014 00:47:18 -0700 Received: from irsmsx105.ger.corp.intel.com (163.33.3.28) by IRSMSX101.ger.corp.intel.com (163.33.3.153) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 10 Oct 2014 08:47:02 +0100 Received: from irsmsx109.ger.corp.intel.com ([169.254.13.253]) by IRSMSX105.ger.corp.intel.com ([169.254.7.174]) with mapi id 14.03.0195.001; Fri, 10 Oct 2014 08:47:01 +0100 From: "Pattan, Reshma" To: "Wang, Shawn" , "dev@dpdk.org" Thread-Topic: Newbie question about distributor library Thread-Index: Ac/j6scBmxwsZKieT7uFpmWciKa2vwACTvTg Date: Fri, 10 Oct 2014 07:47:01 +0000 Message-ID: <3AEA2BF9852C6F48A459DA490692831FE22975@IRSMSX109.ger.corp.intel.com> References: <12C2AAD9525203489F7B523D670129D91CA92780@ex10-mbx-31007.ant.amazon.com> In-Reply-To: <12C2AAD9525203489F7B523D670129D91CA92780@ex10-mbx-31007.ant.amazon.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [163.33.239.181] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] Newbie question about distributor library 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: Fri, 10 Oct 2014 07:39:55 -0000 > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Wang, Shawn > Sent: Thursday, October 9, 2014 7:00 PM > To: dev@dpdk.org > Subject: [dpdk-dev] Newbie question about distributor library >=20 > Hi: >=20 > I am reading document about distributor library which is added in DPDK 1.= 7. > The document mentioned the packets are dynamically load balanced between = a > set of worker cores. > So I am wondering is this the only reason we need distributor library? Wh= at else > could it give us? > Do we have any performance number on this new library? >=20 > Thanks. Hi, Distributor library only takes care of load distribution based on flow typ= e i.e. based on rss ( which is calculated based on 5 tuple of the packet)=20 value of mbuf to workers. Packets with same rss will be given to same worke= r. Hence different flows goes to different workers. 15.5 mpps was the performance we achieved with 8 worker cores, 1 Rx core = and 1 TX core using sample application.=20 Thanks, Reshma