From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 3C42E1C0E8 for ; Thu, 12 Apr 2018 18:30:57 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Apr 2018 09:30:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,442,1517904000"; d="scan'208";a="219931792" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.42]) ([10.237.221.42]) by fmsmga006.fm.intel.com with ESMTP; 12 Apr 2018 09:30:54 -0700 To: "Ananyev, Konstantin" , Jens Freimann , "dev@dpdk.org" Cc: "ailan@redhat.com" , "jan.scheurich@ericsson.com" , "vkaplans@redhat.com" , "Richardson, Bruce" , "thomas@monjalon.net" , "maxime.coquelin@redhat.com" References: <20180412143422.31739-1-jfreimann@redhat.com> <20180412143422.31739-2-jfreimann@redhat.com> <2601191342CEEE43887BDE71AB977258AE914601@IRSMSX102.ger.corp.intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <2601191342CEEE43887BDE71AB977258AE914601@IRSMSX102.ger.corp.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH 1/2] testpmd: add parameters buffersize-before-send and flush-timeout 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: Thu, 12 Apr 2018 16:30:58 -0000 On 4/12/2018 3:57 PM, Ananyev, Konstantin wrote: > Hi, > >> >> Create a fifo to buffer received packets. Once it flows over put >> those packets into the actual tx queue. The fifo is created per tx >> queue and its size can be set with the --buffersize-before-sending >> commandline parameter. >> >> A second commandline parameter is used to set a timeout in >> milliseconds after which the fifo is flushed. >> >> --buffersize-before-sending [packet numbers] >> Keep the mbuf in a FIFO and forward the over flooding packets from the >> FIFO. This queue is per TX-queue (after all other packet processing). >> >> --flush-timer [delay] >> Flush the packet queue if no packets have been seen during >> [delay]. As long as packets are seen, the timer is reset. >> > > I understand your desire to have some realistic fwd scenario, > but why it all have to be put in iowfd mode? > iowfd is the simplest one, mainly used to test raw PMD pefomance > in nearly ideal conditions. > Why not to create your own forwarding mode (as most people do)? > That way you'll have your 'real world app' test scenario, > while keeping iofwd code small and simple. +1 to having own forwarding mode for noisy neighbor, and leaving iofwd simple. > Konstantin > >> Signed-off-by: Jens Freimann <...>