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 1EE339AE7 for ; Wed, 2 Mar 2016 03:28:01 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 01 Mar 2016 18:28:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,526,1449561600"; d="scan'208";a="899002143" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by orsmga001.jf.intel.com with ESMTP; 01 Mar 2016 18:28:00 -0800 Received: from fmsmsx157.amr.corp.intel.com (10.18.116.73) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 1 Mar 2016 18:24:49 -0800 Received: from shsmsx104.ccr.corp.intel.com (10.239.4.70) by FMSMSX157.amr.corp.intel.com (10.18.116.73) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 1 Mar 2016 18:24:48 -0800 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.136]) by SHSMSX104.ccr.corp.intel.com ([169.254.5.132]) with mapi id 14.03.0248.002; Wed, 2 Mar 2016 10:24:47 +0800 From: "Qiu, Michael" To: Tetsuya Mukawa , "dev@dpdk.org" Thread-Topic: [dpdk-dev] [PATCH v9 0/2] Add VHOST PMD Thread-Index: AQHRYx2kdI+zya1GfEi4PR/SuMHgdw== Date: Wed, 2 Mar 2016 02:24:46 +0000 Message-ID: <533710CFB86FA344BFBF2D6802E6028622F5AC90@SHSMSX101.ccr.corp.intel.com> References: <1454671693-3886-3-git-send-email-mukawa@igel.co.jp> <1455010686-21802-1-git-send-email-mukawa@igel.co.jp> <533710CFB86FA344BFBF2D6802E6028622F52FF8@SHSMSX101.ccr.corp.intel.com> <56CD3B27.1080706@igel.co.jp> <533710CFB86FA344BFBF2D6802E6028622F559E7@SHSMSX101.ccr.corp.intel.com> <56CFD4C5.1090008@igel.co.jp> <56D00E66.4090906@igel.co.jp> <533710CFB86FA344BFBF2D6802E6028622F59D67@SHSMSX101.ccr.corp.intel.com> <56D4FC2B.2060903@igel.co.jp> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "ann.zhuangyanying@huawei.com" , "Liu, Yuanhan" Subject: Re: [dpdk-dev] [PATCH v9 0/2] Add VHOST PMD 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: Wed, 02 Mar 2016 02:28:02 -0000 On 3/1/2016 10:19 AM, Tetsuya Mukawa wrote:=0A= > On 2016/03/01 11:00, Qiu, Michael wrote:=0A= >> On 2/26/2016 4:36 PM, Tetsuya Mukawa wrote:=0A= >>> On 2016/02/26 13:29, Tetsuya Mukawa wrote:=0A= >>>>=0A= =0A= [...]=0A= =0A= >>>>=0A= >>>> BTW, I have set the frontend mergeable off.=0A= >>>> I have checked below cases.=0A= >>>> - Case1: Disable mergeable feature in virtio-net PMD.=0A= >>>> - Case2: Disable mergeable feature in virtio-net PMD and use=0A= >>>> '--txqflags=3D0xf01' option to use simple ring deploying.=0A= >>>> Both cases, I still cannot see the drop.=0A= >>>>=0A= >>>> Anyway, I will send a few patch-series to determine the cause of drop.= =0A= >>>> So, could you please apply them and check the performance to determine= =0A= >>>> which cause the drop?=0A= >>> Hi Michael,=0A= >>>=0A= >>> I may find what causes the drop.=0A= >>> Could you please restart testpmd on guest when you see the drop, then= =0A= >>> check performance again?=0A= >>>=0A= >>> I guess the drop will occur only first time when testpmd on guest and= =0A= >>> host is connected.=0A= >>> Here are rough steps.=0A= >>>=0A= >>> 1. Start testpmd on host=0A= >>> 2. Start QEMU=0A= >>> 3. Start testpmd on guest=0A= >>>=0A= >>> Then you will see the drop.=0A= >>> Probably, if testpmd on guest is restarted, then you don't see the drop= =0A= >>> again.=0A= >>>=0A= >>> 4. Type 'quit' on guest.=0A= >>> 5. Start testpmd on guest again.=0A= > Hi Michael,=0A= >=0A= > I am sorry that above was caused by my miss configuration.=0A= > So please ignore it.=0A= > If you can have time today, could you please check v7 and v8 performance?= =0A= =0A= Hi, Tetsuya=0A= =0A= I have tried the qemu case but seems it does not have any difference,=0A= maybe my configuration is wrong.=0A= =0A= What I used to test is container case from Jianfeng. And I make a=0A= mistake that V6 compiled by GCC 5.3, but V9 with GCC 4.8, after using=0A= the same compiler, the performance almost the same.=0A= =0A= Thanks,=0A= Michael=0A= =0A= =0A= > Thanks,=0A= > Tetsuya=0A= >=0A= >> OK, I will help to tested today.=0A= >>=0A= >> Thanks,=0A= >> Michael=0A= >=0A= =0A=