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 90811A0679 for ; Mon, 1 Apr 2019 22:25:09 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 695D74C9C; Mon, 1 Apr 2019 22:25:09 +0200 (CEST) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 4BF804C99 for ; Mon, 1 Apr 2019 22:25:07 +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 fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Apr 2019 13:25:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,297,1549958400"; d="scan'208";a="334041547" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga005.fm.intel.com with ESMTP; 01 Apr 2019 13:25:04 -0700 To: Pavan Nikhilesh Bhagavatula , Jerin Jacob Kollanukkaran , "thomas@monjalon.net" , "arybchenko@solarflare.com" , "bernard.iremonger@intel.com" , Shahaf Shuler Cc: "dev@dpdk.org" References: <20190228194128.14236-1-pbhagavatula@marvell.com> <20190331131341.12924-1-pbhagavatula@marvell.com> 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: <20190331131341.12924-1-pbhagavatula@marvell.com> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v5 1/2] app/testpmd: optimize testpmd txonly mode 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: <20190401202504.P2A02WOOkhEQqDbKOil9rTCJ4WJ-z_Xu7NFBt0g3MUc@z> On 3/31/2019 2:14 PM, Pavan Nikhilesh Bhagavatula wrote: > From: Pavan Nikhilesh > > Optimize testpmd txonly mode by > 1. Moving per packet ethernet header copy above the loop. > 2. Use bulk ops for allocating segments instead of having a inner loop > for every segment. > > Also, move the packet prepare logic into a separate function so that it > can be reused later. > > Signed-off-by: Pavan Nikhilesh > --- > v5 Changes > - Remove unnecessary change to struct rte_port *txp (movement). (Bernard) > > v4 Changes: > - Fix packet len calculation. > > v3 Changes: > - Split the patches for easier review. (Thomas) > - Remove unnecessary assignments to 0. (Bernard) > > v2 Changes: > - Use bulk ops for fetching segments. (Andrew Rybchenko) > - Fallback to rte_mbuf_raw_alloc if bulk get fails. (Andrew Rybchenko) > - Fix mbufs not being freed when there is no more mbufs available for > segments. (Andrew Rybchenko) Hi Thomas, Shahafs, I guess there was a performance issue on Mellanox with this patch, I assume it is still valid, since this version only has some cosmetic change, but can you please confirm? And what is the next step, can you guys provide some info to Pavan to solve the issue, or perhaps even better a fix?