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Tue, 6 May 2025 19:00:13 +0000 Message-ID: <24a121fd-aa4d-43db-8c8c-477bca99a7ae@intel.com> Date: Tue, 6 May 2025 12:00:12 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] net/tun: expose queue utilization stats via ethtool To: Andrew Lunn , Alexander Shalimov CC: , , , , , , , References: <20250506154117.10651-1-alex-shalimov@yandex-team.ru> Content-Language: en-US From: Jacob Keller In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0110.namprd04.prod.outlook.com (2603:10b6:303:83::25) To CO1PR11MB5089.namprd11.prod.outlook.com (2603:10b6:303:9b::16) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PR11MB5089:EE_|DM6PR11MB4756:EE_ X-MS-Office365-Filtering-Correlation-Id: 26e3bb1c-9271-4bc7-89c7-08dd8cd03b9f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|366016; 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Utilization metrics are >> captured at the time of the ethtool invocation, providing a snapshot useful >> for correlation with guest and host behavior. > > This does not fit the usual statistics pattern, which are simple > incremental counters. Are there any other drivers doing anything like > this? I don't recall ever seeing anything like this. If there are, I feel it is a mistake regardless, and we shouldn't repeat it without good reason. +1 to looking at another option for reporting.