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Mon, 16 Aug 2021 18:49:00 +0000 To: Jakub Kicinski CC: Stephen Hemminger , , Aleksander Loktionov References: <20210812092513.3e5ed199@hermes.local> <20210816081456.46d2730c@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> From: Jesse Brandeburg Subject: Re: [Bug 213943] New: Poor network speed with 10G NIC with kernel 5.13 (Intel X710-T2L) Message-ID: <9507c745-2ccc-1ab3-77c7-e83b309181f6@intel.com> Date: Mon, 16 Aug 2021 11:48:58 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 In-Reply-To: <20210816081456.46d2730c@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-ClientProxiedBy: CO2PR04CA0191.namprd04.prod.outlook.com (2603:10b6:104:5::21) To CO1PR11MB4914.namprd11.prod.outlook.com (2603:10b6:303:90::24) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.1.214] (50.39.107.76) by CO2PR04CA0191.namprd04.prod.outlook.com (2603:10b6:104:5::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.13 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?bll0aVRiTld1REdxeVdZdkNnV0FTSDBHaGpacGFlZkp0RmJKWHc1MUV0Y0Qz?= =?utf-8?B?MFNCVWpEdGFpSHBTNnpsZFNNdHpQLzd4Vm5EVHdBNlNBOXRaT2ZTL1VuRUQx?= =?utf-8?B?TDg2ZjBCN0NBcEpLbGkxZk0ybWZWbml5a3BOaDY3Y1MrYWhrekxaeXlYcTBv?= =?utf-8?B?N2JQVnNETXhrQ3dielA1RDdIZ3RuNFVuMlFycW1pWmFwemlJZUdiVGVHSG9C?= =?utf-8?B?Tll4QlBrd3IvbEJwZ3NFWnF4ZFExZ3ppbFFuWHNLbWxpK0RBcUNtZzdMaUxn?= =?utf-8?B?UERPYmF1dGZlUlNvcERSTnNWOXdrZjdRWlpnUjAwMUJXc1dmUEJGWUFBTXZr?= =?utf-8?B?Um9NZlhDWmtNaWpLZzJSQ2xra25hZ0lVd0MyY1NRTEZ3ekFjbGlOdVhrcEFr?= =?utf-8?B?MXlrL2REYjJCcS9nOXVTUXNLVk41TkJYUTRMeWx1c3p5NGhoVTUwWjdvWTRi?= =?utf-8?B?NzBtUzN5eXVyVzJYcDNyMkhkTzdsYXNkYVNQS2lvWEFPMkF5WFFlbmJLMDRj?= =?utf-8?B?ejlCUThuZUJTOXhGazh3ait5eDB4bmVJYmZrdmpOa1FwRFlSVlBTOG9rZ3Zz?= =?utf-8?B?VVBtRkRaWFJtZTNvZGFvYzRzZUkzVFl3R0ZQeU00VlN6MlFFUlQ2bGEzZEti?= =?utf-8?B?TWpObGtnblArUVhWLzJwZmlKMTJudWo0WkRXbFE5MzFGVGZYR2NWbzlDRk55?= =?utf-8?B?L3FlZ3RodUJZTzA1OHJQbDZRZGNUUlhtNXlOdUxkdmZFQ3ExanRHSUxXaXl1?= =?utf-8?B?WmJwcEVwMzN0RjVrVkUwTG9May9NV2pzQkcxNUxsdmtXdndHcFZTMWxmakZT?= =?utf-8?B?OVZrL2hHS3NXb2hQbzBQQ0Z0SkgreGdmQk5xRmZ3QXFwYmVxaUFEb3RWU3NT?= =?utf-8?B?d3lNUS9OUkJST2REMU12YmdieTZSYk1kRlN6a1JlbzFSWHZ6U2tja1JpZ0FV?= =?utf-8?B?bzl0U0lqN0VONUJFTnlLVUhsZStIUEd6MlpRS01KaHIwOElvdG5QWWNaeGh2?= =?utf-8?B?VEJqR20xM243MFFHR0hUOFE5VGxyTUQ4MUo4ajgwT2JENG1XS0FjcXdmd3lB?= =?utf-8?B?ZlFmZ2o2NEw0YVNuMWZkQk9GNVdvWmFPWE5kVDdTUXQ5L3JrY3BrTmRPODFk?= =?utf-8?B?RlZ5OFFzdEpzN1NFUmthaVlEVS9xQUJzRWZ3TWVMSjh5encwTkVJcUw0dU9m?= =?utf-8?B?WkdWWlAyQWY4N0p2blFsWVdwWlgzS2hiTjFmeFBHQ3lsNXBjc0RNc3VUeVI1?= =?utf-8?B?WDVibGlzQkluLzZwQk1hQm14aGdIWUdtNC9BYUtseWFtL3pvblFmcGVYRHFh?= =?utf-8?B?MENONGJudlh1cE1qR1ZTZTQ0cGV4T0RzSjExZENnVW9tMGUyK21qS2o4UXdn?= =?utf-8?B?RlNheUxvNUhpL0VKKzlGUklCaG1MWTQ3L1pETU5VMzhnTkl0cnhRL054VzBX?= =?utf-8?B?WDJrUHJPM0pFYlNjallsYVlPeWM1Vkw5SDlhSkVwcFliV3JsQjZBT3lTY1pY?= =?utf-8?B?WXllSldpSmd5eTlIa1J2QkJBYUs2ZnZMcjV1TS92Y09OQUZDdXpJUURON09I?= =?utf-8?B?L3pDb1QwS3VTWVh0bXUxdWhQOFUySnZnd2w0bUVyYUZUdmlOTytjTUw3TWQ1?= =?utf-8?B?aDRnczBQUUtHaUZ6azFYZFFYUE9kWDJhK2xQUHJWbzRLUWJITzJERXRDdVhx?= =?utf-8?B?d1JtSm9CVkdRS2lhQkVFNXlMaHFEcFhrRUdsOXpVRTA3WW1JZTlwTmlVU1dq?= =?utf-8?Q?XJZudbA/aYOkn5jDnn5jjpgxZ6yj5pUcVy+5WiP?= X-MS-Exchange-CrossTenant-Network-Message-Id: fdda9816-2d7a-40f9-36f8-08d960e682c9 X-MS-Exchange-CrossTenant-AuthSource: CO1PR11MB4914.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Aug 2021 18:49:00.4487 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: zHg7kFFFX7DsEp5+V6X+wYhjlYZQipnhOUzG5S6fwX42jTIrjoozd7fxAhIEwq/lqJRxWijqiHfWPb5RLMsg4hJU6tDLgWjOmnQ7oIhTO2s= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1101MB2318 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 8/16/2021 8:14 AM, Jakub Kicinski wrote: > The problem still appear in 5.13.7 (last one at the moment). > Jesse, are you aware of anything that could cause this? Hey! Thanks for copying me on this report. I've added myself to the CC and I'll file an internal bug to get attention to the issue. FWIW, I haven't heard anything about a known issue like this, nor has the lead (Aleksander Loktionov) of i40e. So at this point we just need to investigate. I've also asked the reporter for some extra info in the Bugzilla. Thanks! Jesse