From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 7F99EC52A for ; Tue, 28 Apr 2015 13:32:36 +0200 (CEST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP; 28 Apr 2015 04:32:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,663,1422950400"; d="scan'208";a="717041619" Received: from irsmsx105.ger.corp.intel.com ([163.33.3.28]) by fmsmga002.fm.intel.com with ESMTP; 28 Apr 2015 04:32:35 -0700 Received: from irsmsx155.ger.corp.intel.com (163.33.192.3) by irsmsx105.ger.corp.intel.com (163.33.3.28) with Microsoft SMTP Server (TLS) id 14.3.224.2; Tue, 28 Apr 2015 12:32:34 +0100 Received: from irsmsx108.ger.corp.intel.com ([169.254.11.246]) by irsmsx155.ger.corp.intel.com ([169.254.14.172]) with mapi id 14.03.0224.002; Tue, 28 Apr 2015 12:32:33 +0100 From: "De Lara Guarch, Pablo" To: "Richardson, Bruce" , Paul Emmerich Thread-Topic: [dpdk-dev] Performance regression in DPDK 1.8/2.0 Thread-Index: AQHQgFHZ4mseU3xXgkWntFvhqktdlJ1gcNwAgACZkhCAAFcpAIAAzUUAgAADTwCAABrjwA== Date: Tue, 28 Apr 2015 11:32:32 +0000 Message-ID: References: <6DC6DE50-F94F-419C-98DF-3AD8DCD4F69D@net.in.tum.de> <23D2CA18-1875-4182-8DEE-9F6393011D2C@net.in.tum.de> <47D837AA-FE82-45A1-AC3D-3CF600F5CC19@net.in.tum.de> <20150428105505.GA7484@bricha3-MOBL3> In-Reply-To: <20150428105505.GA7484@bricha3-MOBL3> 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 Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] Performance regression in DPDK 1.8/2.0 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 Apr 2015 11:32:37 -0000 > -----Original Message----- > From: Richardson, Bruce > Sent: Tuesday, April 28, 2015 11:55 AM > To: Paul Emmerich > Cc: De Lara Guarch, Pablo; dev@dpdk.org > Subject: Re: [dpdk-dev] Performance regression in DPDK 1.8/2.0 >=20 > On Tue, Apr 28, 2015 at 12:43:16PM +0200, Paul Emmerich wrote: > > Hi, > > > > sorry, I mixed up the hardware I used for my tests. > > > > > > Paul Emmerich : > > > CPU: Intel(R) Xeon(R) CPU E3-1230 v2 > > > TurboBoost and HyperThreading disabled. > > > Frequency fixed at 3.30 GHz via acpi_cpufreq. > > > > The CPU frequency was fixed at 1.60 GHz to enforce > > a CPU bottleneck. > > > > > > My original post said that I used a Xeon E5-2620 v3 > > at 1.2 GHz, this is incorrect. The calculation for Cycles/Pkt > > in the original post used the correct 1.6 GHz figure, though. > > > > (I used the E5 CPU for the evaluation of my packet generator > > performance with 1.7.1/2.0.0, not for the l2fwd test.) Thanks for the update. So, just for clarification,=20 for l2fwd you used E3-1230 v2 (Ivy Bridge), at 1.6 GHz or 3.3 GHz? Pablo > > > > > > Sorry for the confusion. > > > > > > Paul > Thanks for the update - we are investigating. >=20 > /Bruce