From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 7A85C1B532 for ; Fri, 5 Apr 2019 17:09:10 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Apr 2019 08:09:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,313,1549958400"; d="scan'208";a="335303582" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga005.fm.intel.com with ESMTP; 05 Apr 2019 08:09:07 -0700 To: Simon Guo , "Ananyev, Konstantin" Cc: "Lu, Wenzhuo" , "dev@dpdk.org" , Thomas Monjalon References: <6A0DE07E22DDAD4C9103DF62FEBC09093B7109A8@shsmsx102.ccr.corp.intel.com> <1515810914-18762-1-git-send-email-wei.guo.simon@gmail.com> <2601191342CEEE43887BDE71AB9772588627E492@irsmsx105.ger.corp.intel.com> <20180117091337.GA30690@simonLocalRHEL7.x64> <2601191342CEEE43887BDE71AB9772588628010D@irsmsx105.ger.corp.intel.com> <20180125034002.GA3674@simonLocalRHEL7.x64> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20180125034002.GA3674@simonLocalRHEL7.x64> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v5] app/testpmd: add option ring-bind-lcpu to bind Q with CPU X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Apr 2019 15:09:12 -0000 On 1/25/2018 3:40 AM, Simon Guo wrote: > > Hi Konstantin, > On Thu, Jan 18, 2018 at 12:14:05PM +0000, Ananyev, Konstantin wrote: >> Hi Simon, >> >>> >>> Hi, Konstantin, >>> On Tue, Jan 16, 2018 at 12:38:35PM +0000, Ananyev, Konstantin wrote: >>>> >>>> >>>>> -----Original Message----- >>>>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of wei.guo.simon@gmail.com >>>>> Sent: Saturday, January 13, 2018 2:35 AM >>>>> To: Lu, Wenzhuo >>>>> Cc: dev@dpdk.org; Thomas Monjalon ; Simon Guo >>>>> Subject: [dpdk-dev] [PATCH v5] app/testpmd: add option ring-bind-lcpu to bind Q with CPU >>>>> >>>>> From: Simon Guo >>>>> >>>>> Currently the rx/tx queue is allocated from the buffer pool on socket of: >>>>> - port's socket if --port-numa-config specified >>>>> - or ring-numa-config setting per port >>>>> >>>>> All the above will "bind" queue to single socket per port configuration. >>>>> But it can actually archieve better performance if one port's queue can >>>>> be spread across multiple NUMA nodes, and the rx/tx queue is allocated >>>>> per lcpu socket. >>>>> >>>>> This patch adds a new option "--ring-bind-lcpu"(no parameter). With >>>>> this, testpmd can utilize the PCI-e bus bandwidth on another NUMA >>>>> nodes. >>>>> >>>>> When --port-numa-config or --ring-numa-config option is specified, this >>>>> --ring-bind-lcpu option will be suppressed. >>>> >>>> Instead of introducing one more option - wouldn't it be better to >>>> allow user manually to define flows and assign them to particular lcores? >>>> Then the user will be able to create any FWD configuration he/she likes. >>>> Something like: >>>> lcore X add flow rxq N,Y txq M,Z >>>> >>>> Which would mean - on lcore X recv packets from port=N, rx_queue=Y, >>>> and send them through port=M,tx_queue=Z. >>> Thanks for the comment. >>> Will it be a too compliated solution for user since it will need to define >>> specifically for each lcore? We might have hundreds of lcores in current >>> modern platforms. >> >> Why for all lcores? >> Only for ones that will do packet forwarding. >> Also if configuration becomes too complex(/big) to be done manually >> user can write a script that will generate set of testpmd commands >> to achieve desired layout. > > It might not be an issue for skillful users, but it will be difficult > for others. --ring-bind-lcpu will help to simply this for them. Discussion seems not concluded for this patch, and it is sting idle for more than a year. I am marking the patch as rejected, if it is still relevant please send a new version on top of latest repo. Sorry for any inconvenience caused. For reference patch: https://patches.dpdk.org/patch/33771/ From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 3E0EAA0679 for ; Fri, 5 Apr 2019 17:09:16 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id ABCA11B533; Fri, 5 Apr 2019 17:09:13 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 7A85C1B532 for ; Fri, 5 Apr 2019 17:09:10 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Apr 2019 08:09:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,313,1549958400"; d="scan'208";a="335303582" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga005.fm.intel.com with ESMTP; 05 Apr 2019 08:09:07 -0700 To: Simon Guo , "Ananyev, Konstantin" Cc: "Lu, Wenzhuo" , "dev@dpdk.org" , Thomas Monjalon References: <6A0DE07E22DDAD4C9103DF62FEBC09093B7109A8@shsmsx102.ccr.corp.intel.com> <1515810914-18762-1-git-send-email-wei.guo.simon@gmail.com> <2601191342CEEE43887BDE71AB9772588627E492@irsmsx105.ger.corp.intel.com> <20180117091337.GA30690@simonLocalRHEL7.x64> <2601191342CEEE43887BDE71AB9772588628010D@irsmsx105.ger.corp.intel.com> <20180125034002.GA3674@simonLocalRHEL7.x64> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20180125034002.GA3674@simonLocalRHEL7.x64> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v5] app/testpmd: add option ring-bind-lcpu to bind Q with CPU X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190405150906.O9EXiYrBLak37HpSVkgJ4NYhmJSoGJeymQC5sZlrgcs@z> On 1/25/2018 3:40 AM, Simon Guo wrote: > > Hi Konstantin, > On Thu, Jan 18, 2018 at 12:14:05PM +0000, Ananyev, Konstantin wrote: >> Hi Simon, >> >>> >>> Hi, Konstantin, >>> On Tue, Jan 16, 2018 at 12:38:35PM +0000, Ananyev, Konstantin wrote: >>>> >>>> >>>>> -----Original Message----- >>>>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of wei.guo.simon@gmail.com >>>>> Sent: Saturday, January 13, 2018 2:35 AM >>>>> To: Lu, Wenzhuo >>>>> Cc: dev@dpdk.org; Thomas Monjalon ; Simon Guo >>>>> Subject: [dpdk-dev] [PATCH v5] app/testpmd: add option ring-bind-lcpu to bind Q with CPU >>>>> >>>>> From: Simon Guo >>>>> >>>>> Currently the rx/tx queue is allocated from the buffer pool on socket of: >>>>> - port's socket if --port-numa-config specified >>>>> - or ring-numa-config setting per port >>>>> >>>>> All the above will "bind" queue to single socket per port configuration. >>>>> But it can actually archieve better performance if one port's queue can >>>>> be spread across multiple NUMA nodes, and the rx/tx queue is allocated >>>>> per lcpu socket. >>>>> >>>>> This patch adds a new option "--ring-bind-lcpu"(no parameter). With >>>>> this, testpmd can utilize the PCI-e bus bandwidth on another NUMA >>>>> nodes. >>>>> >>>>> When --port-numa-config or --ring-numa-config option is specified, this >>>>> --ring-bind-lcpu option will be suppressed. >>>> >>>> Instead of introducing one more option - wouldn't it be better to >>>> allow user manually to define flows and assign them to particular lcores? >>>> Then the user will be able to create any FWD configuration he/she likes. >>>> Something like: >>>> lcore X add flow rxq N,Y txq M,Z >>>> >>>> Which would mean - on lcore X recv packets from port=N, rx_queue=Y, >>>> and send them through port=M,tx_queue=Z. >>> Thanks for the comment. >>> Will it be a too compliated solution for user since it will need to define >>> specifically for each lcore? We might have hundreds of lcores in current >>> modern platforms. >> >> Why for all lcores? >> Only for ones that will do packet forwarding. >> Also if configuration becomes too complex(/big) to be done manually >> user can write a script that will generate set of testpmd commands >> to achieve desired layout. > > It might not be an issue for skillful users, but it will be difficult > for others. --ring-bind-lcpu will help to simply this for them. Discussion seems not concluded for this patch, and it is sting idle for more than a year. I am marking the patch as rejected, if it is still relevant please send a new version on top of latest repo. Sorry for any inconvenience caused. For reference patch: https://patches.dpdk.org/patch/33771/