From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BDAF0488E8; Thu, 9 Oct 2025 04:32:22 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2156740648; Thu, 9 Oct 2025 04:32:22 +0200 (CEST) Received: from DM5PR21CU001.outbound.protection.outlook.com (mail-centralusazon11011048.outbound.protection.outlook.com [52.101.62.48]) by mails.dpdk.org (Postfix) with ESMTP id C24A240277; Thu, 9 Oct 2025 04:32:20 +0200 (CEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ppwyPPukBSTnhRDT1iJd6JTGLjt9ozfTVnILUQLLyzNU/yqK8MLcAtHo5LLFobbAOPQ56FmKCazmtwOswtAKjoIAO4uSfiYr13qtNjlPEMZIDviXrVJvMB7CkBc8RQ6HLodzyeuSeB7rb2QbO731lLEfe6Uj2XYkqy4gyieovrnEI6YcTP0m3PVW1jvTXwBMqy/ZeCIrp9/wYO8vm3iD4gopuEmhfOQ5CSWwGcEd/mBI09ceS2yZMfOdD6O+CopNfIjS4OlDCY/dviRvbScVjEFyI95FynTD+IANeiRJd4DeVCe+EBFEF/7Hqfc/zHkE4sbN7vOogt91G1N8QoNSOw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=JMYblN3UifzrnpdnfMXSIlfzKryp4RJ4wny/g3C6AD4=; b=FnpMeSk2x9+DZ56hb5Tawz54mJ89zRlcVIyPJgLSgUq6wEYrFGCfkmaD+TGq64gn6bs5BdpBdP7Lnoag6RqADhYT3ldmiyOOqil26ZoG8tiZ8HU7xoMd/xNgzyZO91FBwL3NBCXHdS+dJ+gPSNZjuxL//foaVj0B7rU5l+lnSyyst08LlZPGdbjDdMpZI6170kmhS1DrXuKQze+vKWvs9CpcaeFWNyr8pcRCjvw6JP3msr2cbvJn/J4aZAZhMr0CffIi0celF3cRp/eQ/j7l+PuwDPZFHGL8bb+DToBQje5WdFvi7zMcsU3RUeNZrMfvzrX5mFFDi4n5Mp01s/MY5g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=JMYblN3UifzrnpdnfMXSIlfzKryp4RJ4wny/g3C6AD4=; b=Oj1FYMNU+C+3ugDCZhLVPifVTd5IrdZQ/V62cOTRHcL0rFEUd2FGcRqipyvvv9ja6MPxAXMF48BhE93ZoCqW/J2Zi1C7I4Zcxn1sMjfASjJf+AzmqWJQsAj/6sfzFSeb5x5R+VyrMw2qonOMfvgAtiupZ0vBDp/APanQBg4eIC4= Received: from CH3PR12MB8233.namprd12.prod.outlook.com (2603:10b6:610:129::15) by PH7PR12MB6693.namprd12.prod.outlook.com (2603:10b6:510:1b0::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9182.20; Thu, 9 Oct 2025 02:32:12 +0000 Received: from CH3PR12MB8233.namprd12.prod.outlook.com ([fe80::9a84:a7c:143:6f7c]) by CH3PR12MB8233.namprd12.prod.outlook.com ([fe80::9a84:a7c:143:6f7c%4]) with mapi id 15.20.9182.017; Thu, 9 Oct 2025 02:32:12 +0000 From: "Tummala, Sivaprasad" To: Pavan Nikhilesh Bhagavatula , "david.hunt@intel.com" , "anatoly.burakov@intel.com" , Jerin Jacob , "radu.nicolau@intel.com" , Akhil Goyal , "cristian.dumitrescu@intel.com" , "Yigit, Ferruh" , "konstantin.ananyev@huawei.com" , "mb@smartsharesystems.com" CC: "dev@dpdk.org" , "haijie1@huawei.com" , "stable@dpdk.org" , "Ande, Venkat Kumar" , Dengdui Huang Subject: Re: [EXTERNAL] [PATCH v2] examples/l3fwd: adjust Tx burst size based on Rx burst Thread-Topic: [EXTERNAL] [PATCH v2] examples/l3fwd: adjust Tx burst size based on Rx burst Thread-Index: AQHb2SU+tA7kPVaC/EGjX4/NwXYycbP8deoAgL1hK5k= Date: Thu, 9 Oct 2025 02:32:12 +0000 Message-ID: References: <20250212045416.2393001-1-sivaprasad.tummala@amd.com> <20250609095827.4174387-1-sivaprasad.tummala@amd.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_Enabled=True; MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_SiteId=3dd8961f-e488-4e60-8e11-a82d994e183d; MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_SetDate=2025-10-09T02:32:11.636Z; MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_Name=AMD Internal Distribution Only; MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_ContentBits=1; MSIP_Label_dce362fe-1558-4fb5-9f64-8a6240d76441_Method=Standard; authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: CH3PR12MB8233:EE_|PH7PR12MB6693:EE_ x-ms-office365-filtering-correlation-id: 871cef9e-a55c-44eb-c02b-08de06dc0daa x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; ARA:13230040|7416014|1800799024|366016|376014|8096899003|921020|38070700021|7053199007; x-microsoft-antispam-message-info: =?iso-8859-1?Q?7dQW6ahENGRfwHUZfqdT3DC7iA0ByIgXxoqkPfzQG7vfYU9DnIJxiX8NmS?= =?iso-8859-1?Q?tU7WwFfTuPJK6SsQzk6pZELpBPb0Ieim9rnfNT77Dt904sLybPC/OYWwEn?= =?iso-8859-1?Q?cLSr+ETEmxJHgx+2wYOdMU0IqS+nAWHRP/zkFZXj9sErqLwjjNvuEOycE+?= =?iso-8859-1?Q?cf27cNfnFUGn32vC85nweKGvo03w2tvboljPyldhWgIpDiCVD+5JCV71Vk?= =?iso-8859-1?Q?CmlQf5ZatIiQoy04nf1C+ocnoMqkTV986ieJevV9CXrjjl+Upwe0zyy+B/?= =?iso-8859-1?Q?aaFolSR+jsAxJ+O/fGg5/+JUC/T6T0cFR5amCEeZETgpdOXDfGMyXiZGEM?= =?iso-8859-1?Q?wunVsKubGpthKIP2NYAAGZLTT0MxYfHolbcffA6wx86Zkmpi6INe1c5BnC?= =?iso-8859-1?Q?Vx2hMYg/jJp0uX2BfvtRCAFsZsOqvNtPeaPVS9N+EdVqm798Crv6SLsHYS?= =?iso-8859-1?Q?bSYNG5O4VVrYTtA8gFrYGUFc2IJ4EGrfBu8bPJXWbRIZP/b9LuQZTTX7mQ?= =?iso-8859-1?Q?ZIuK7jyhEHLkAvRcEB7sBWel0H5lS2LZKleTosu/HSBmC03Ce/7kwlco62?= =?iso-8859-1?Q?ejzQ+KlbGFdZ6LkW86i+qUxs1Fx8v6XPi74Dckuq/iVs07oHGA6VNqmi1d?= =?iso-8859-1?Q?aU3j8BadC2w09ES6Y1AvZHfJUanAejnY6iR9fFlfRKB4rIvvfTt2uQPbht?= =?iso-8859-1?Q?/X12Ec97KkD7e+kt1VXoH8lo9MN0rSvWiB4J1nDFIPj5u22Oe0dG/S/GjA?= =?iso-8859-1?Q?6sRMAqOA2BGf5qqBrGBa7S5athHeGheKWRzIjDmIH+W2uV7EHOoZbyN+a+?= =?iso-8859-1?Q?w2uGDOUgEoObubhA7rsTRIOBRNdE3Gd6MzBTwHQDI+IEU6oLO/awC59WW9?= =?iso-8859-1?Q?0mYzVjLjOOWaCncurbtrB0TjlCZRd6MEHAXrXtmXEB9xxfSKfkKvijEU7l?= =?iso-8859-1?Q?ffkM+hThfv5j+2DbKm9y8CrQphxjjiI3ykbcWvK9k2dQ+njWbyezIkPp8l?= =?iso-8859-1?Q?vjT9Wqp/sWdyi69dMzzXHx9F2g4mCSkrXEGuCedvA5g2vP/Hn+HRGQ4i1Y?= =?iso-8859-1?Q?USNsyWAd775q6cnRSeaYhib4eLFQUm3sMUVCI4D6QlIo/aZRZODS17kbRp?= =?iso-8859-1?Q?h74i09wKp7JLej83N2Vk1kXLrO1LpbRjnx2fnQgHsxwTuchsYsIMIvHtLq?= =?iso-8859-1?Q?+EPSKPuKVJh2Jcgf0ZKJ2g1D7nT4ppAIqIJzaN4TYIQtv0AoW/0fWf0zJR?= =?iso-8859-1?Q?/CT+SE5T+Q69UbyPBL1ry2T104f16bA4MPPq7hnfT8gSFqylaQJYsYPBAY?= =?iso-8859-1?Q?wKeGoB1kY2fTNW+0FT3ZC3E+EzrcrQ9rFdUefVAkhkGBiZgZC3QfgWH/iK?= =?iso-8859-1?Q?e99IEhXBWuZ60CkgLFA3zjeNso+rd6JJKKLgi4rfQ6akZWPsHzq1hDvi/W?= =?iso-8859-1?Q?WmysWEeN6xtf9BD/wQQLeWBYtqzSvR+90U29d4qLyYqvBhA5Y7VQiZ0k2S?= =?iso-8859-1?Q?EPC4018+m8MVqEMobN2O63QlFFKxfrDAGFw3RZkdW9DDy4PaHbK52BYhlJ?= =?iso-8859-1?Q?jTxKPRGfQiI4AnH7hQ5xVjE0UtyAIhq83uAmiBbHtWDZVXhfUA=3D=3D?= x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:CH3PR12MB8233.namprd12.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230040)(7416014)(1800799024)(366016)(376014)(8096899003)(921020)(38070700021)(7053199007); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?iso-8859-1?Q?IceED6vukakGjz/AEcs8Hv92WE6fH94ibGnZrBp7s98NNVw1wUjonOf4L8?= =?iso-8859-1?Q?0UOiZmJVXRnXiMtvDH+6O1CMbMbZUbBqgQrcWAUc7RKYLq7/PoHkS+eoq/?= =?iso-8859-1?Q?9ir8j1NijrqeTxIMUhHof1DyS/loTxJNPDNl0gDnCyi+jG+7du52+mROR0?= =?iso-8859-1?Q?pLEFDFPAtRvCzKaJ9FRdwAv6PrTu+b0NSdEmyCa/l3nU2V44eQxtfh0gda?= =?iso-8859-1?Q?vOa5bWe+waZ+xfYN9Tmr87/ReePWxewGk5IqL9DpOtXdWOiSTXB/1+fJSM?= =?iso-8859-1?Q?2eC66WWgOVUuyqKSTyJFhvq2+KnwKZDrdnXGHOP+0TXvOG6+g2VQkSbj6O?= =?iso-8859-1?Q?c3i+VmEairLtY+VkJmqjkimajKg7y9iav66kJiOBE4hJvMJtvusogOSh5A?= =?iso-8859-1?Q?eVLEj2mKRRupb9s7tzvfGtPO6pLpAEhCj9lekOsCTBj/VHNDbiJbK1qxpZ?= =?iso-8859-1?Q?dMfCMa8eGXfnEzmE/lxdJp5IMPxXQo0L3hFVo/hgykwWE2VgMejYLi9yIU?= =?iso-8859-1?Q?/+w0eU74nAA/rnTz1BM6HEfc5JlaZyPP0QX8024lZsKdPHH9ovHLPYYSNl?= =?iso-8859-1?Q?YiH2GXkqXmtdbpxy5ibYuoPJzkQ1kd/6+zLjywPzqgC5CxzxqlRjZPz5wE?= =?iso-8859-1?Q?JzRed+jkCG7yaCCvSIJMKSoC/PwpP/hsokHZIQeZwBKaoHgPrwB+cHPzR/?= =?iso-8859-1?Q?tBAQfhJZEU0apzNaRApZcDGZCueSd2OGN298aR3v+b9VhB7/9huooEouxt?= =?iso-8859-1?Q?h118e44WbzH6Ypze0cBXxE+zr0ExC0LEcbetAbdlI/RyVd+/kpnlT2wqlY?= =?iso-8859-1?Q?NDdGYcV52q12f5Ku/3HBF4BOzKXhX1TdtOu4LMQ21SYH9Grn3ps2y+8ja1?= =?iso-8859-1?Q?YO7cmk4r89CLMFBGLibZfYHXNl080d7bE9mi2604zaH4uCSOjixXQHo0Tm?= =?iso-8859-1?Q?2rG13fV13PnJ1a+eZnFulHjCC0h5zbjLiEZRcmp2FEKNp5ZWYAD3BaQeai?= =?iso-8859-1?Q?CYodKTC7ETOuTioMHJcq4sVU+HZzpTSc3G0w0hnj9eXHWtNLmXAkfDTzj7?= =?iso-8859-1?Q?Z+FW0JFvHdfl5uBGaomyzUb3cFD8N63vKYER+5HS1X9cAaiZ0jojUlTTyC?= =?iso-8859-1?Q?kApMJZMt9Li9hm8oFBsZs6mBMRbMV7AW5lEj7jWwWGmQO6KdlPt5LfYkC3?= =?iso-8859-1?Q?EbWFi5f+w8kbg72Yi/DBEKZh6zx8C2C1KayBykYmWobeAuaFYB7M/Ourwm?= =?iso-8859-1?Q?qAtIfhs46VMb3mnNBAKnniYeWMwb0T9Oqa6atNdl8FQ5ZR2kdpcmMRR3sc?= =?iso-8859-1?Q?egG6qQn+ipiTL4kPw7oQb+PbtSwZJNUvYKA2Stbn9HCrCVSJp4xo1g9NE0?= =?iso-8859-1?Q?nAhAFq0Wo4V3XX5gsikYcopDOGyL4YYdTpGgATU21bTGTwtk5O11/T/sHL?= =?iso-8859-1?Q?cSu/dqDI1VCxGdJYFKwGDDdzykWRpNlAV99cALptJF8miQeyNs+XZjEIlx?= =?iso-8859-1?Q?QA5wYfNZX1qDNxctoDrkuh5pAAL2DNv8OwDUkb/w+wXyoCDroTADtT6IQc?= =?iso-8859-1?Q?1SO+GDpiesaIf3iavQlittaUMur832mdpHFW3JQ07ARTzDBaK9k41cbcf/?= =?iso-8859-1?Q?02g69l82W94sY=3D?= Content-Type: multipart/alternative; boundary="_000_CH3PR12MB8233DABD201A97C7A71D8D2C86EEACH3PR12MB8233namp_" MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: CH3PR12MB8233.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 871cef9e-a55c-44eb-c02b-08de06dc0daa X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Oct 2025 02:32:12.4525 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: SkNbIaSnWerREpnQJRdl4AWKsUyL1mBdhmOZpYtFybODjFj+k8O8Ul+mH3rI94u+tbhc5frNoURM83LA8K1D2g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6693 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --_000_CH3PR12MB8233DABD201A97C7A71D8D2C86EEACH3PR12MB8233namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable [AMD Official Use Only - AMD Internal Distribution Only] Hi Pavan, Please find my response inline. ________________________________ From: Pavan Nikhilesh Bhagavatula Sent: Tuesday, June 10, 2025 7:59 PM To: Tummala, Sivaprasad ; david.hunt@intel.com = ; anatoly.burakov@intel.com ; Jerin Jacob ; radu.nicolau@intel.com ; Akhil Goyal ; cristian.dumitrescu@intel.com= ; Yigit, Ferruh ; kon= stantin.ananyev@huawei.com ; mb@smartsharesy= stems.com Cc: dev@dpdk.org ; haijie1@huawei.com ; s= table@dpdk.org ; Ande, Venkat Kumar ; Dengdui Huang Subject: Re: [EXTERNAL] [PATCH v2] examples/l3fwd: adjust Tx burst size bas= ed on Rx burst Caution: This message originated from an External Source. Use proper cautio= n when opening attachments, clicking links, or responding. >>Previously, the TX burst size was fixed at 256, leading to performance >>degradation in certain scenarios. >> >>This patch introduces logic to set the TX burst size to match the >>configured RX burst size (--burst option, default 32, max 512) >>for better efficiency. >> >>Fixes: d5c4897ecfb2 ("examples/l3fwd: add option to set Rx burst size") >>Cc: haijie1@huawei.com >>Cc: stable@dpdk.org >> >>Signed-off-by: Sivaprasad Tummala >>Tested-by: Venkat Kumar Ande >>Tested-by: Dengdui Huang >It would be good if the selected burst sizes of Rx and Tx are logged. ACK >On CN10K platform we see upto 5% improvement, and upto 30% improvement on = CN9K. >Tested-by: Pavan Nikhilesh >--- > examples/l3fwd/l3fwd.h | 8 ++------ > examples/l3fwd/l3fwd_common.h | 11 +++++++---- > examples/l3fwd/main.c | 2 ++ > 3 files changed, 11 insertions(+), 10 deletions(-) --_000_CH3PR12MB8233DABD201A97C7A71D8D2C86EEACH3PR12MB8233namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
[AMD Official Use Only - AMD Internal Distribution Only]

Hi Pavan,

Please find my response inline. 

From: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com&= gt;
Sent: Tuesday, June 10, 2025 7:59 PM
To: Tummala, Sivaprasad <Sivaprasad.Tummala@amd.com>; dav= id.hunt@intel.com <david.hunt@intel.com>; anatoly.burakov@intel.com &= lt;anatoly.burakov@intel.com>; Jerin Jacob <jerinj@marvell.com>; r= adu.nicolau@intel.com <radu.nicolau@intel.com>; Akhil Goyal <gakhi= l@marvell.com>; cristian.dumitrescu@intel.com <cristian.dumitrescu@intel.com>; Yigit= , Ferruh <Ferruh.Yigit@amd.com>; konstantin.ananyev@huawei.com <ko= nstantin.ananyev@huawei.com>; mb@smartsharesystems.com <mb@smartshare= systems.com>
Cc: dev@dpdk.org <dev@dpdk.org>; haijie1@huawei.com <h= aijie1@huawei.com>; stable@dpdk.org <stable@dpdk.org>; Ande, Venka= t Kumar <VenkatKumar.Ande@amd.com>; Dengdui Huang <huangdengdui@hu= awei.com>
Subject: Re: [EXTERNAL] [PATCH v2] examples/l3fwd: adjust Tx bu= rst size based on Rx burst

Caution: This mess= age originated from an External Source. Use proper caution when opening att= achments, clicking links, or responding.


>>Previously, the TX burst size was fixed at 256, leading to performa= nce
>>degradation in certain scenarios.
>>
>>This patch introduces logic to set the TX burst size to match the >>configured RX burst size (--burst option, default 32, max 512)
>>for better efficiency.
>>
>>Fixes: d5c4897ecfb2 ("examples/l3fwd: add option to set Rx bur= st size")
>>Cc: haijie1@huawei.com
>>Cc: stable@dpdk.org
>>
>>Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>= ;
>>Tested-by: Venkat Kumar Ande <VenkatKumar.Ande@amd.com>
>>Tested-by: Dengdui Huang <huangdengdui@huawei.com>

>It would be good if the selected burst sizes of Rx and Tx are logged. ACK

>On CN10K platf= orm we see upto 5% improvement, and upto 30% improvement on CN9K.

>Tested-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

>---
> examples/l3fwd/l3fwd.h        |&nbs= p; 8 ++------
> examples/l3fwd/l3fwd_common.h | 11 +++++++----
> examples/l3fwd/main.c         = |  2 ++
> 3 files changed, 11 insertions(+), 10 deletions(-)

--_000_CH3PR12MB8233DABD201A97C7A71D8D2C86EEACH3PR12MB8233namp_--