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Tue, 13 Jan 2026 22:19:28 +0000 Message-ID: Date: Tue, 13 Jan 2026 14:18:48 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 27/47] arm_mpam: resctrl: Add support for 'MB' resource To: Ben Horgan CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Zeng Heng References: <20260112165914.4086692-1-ben.horgan@arm.com> <20260112165914.4086692-28-ben.horgan@arm.com> Content-Language: en-US From: Reinette Chatre In-Reply-To: <20260112165914.4086692-28-ben.horgan@arm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0232.namprd04.prod.outlook.com (2603:10b6:303:87::27) To SN7PR11MB7566.namprd11.prod.outlook.com (2603:10b6:806:34d::7) 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: SN7PR11MB7566:EE_|CY8PR11MB7265:EE_ X-MS-Office365-Filtering-Correlation-Id: 87cc2b7c-65f5-4535-420a-08de52f1d13d X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|1800799024; 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This is the control that mba_sc uses, so ideally the class > chosen should be as close as possible to the counters used for mba_local. fyi ... [1] enabled total memory bandwidth to also be used as input to software controller and additionally enabled user space to set per resource group which memory bandwidth event is used as input to the software controller. Reinette [1] https://lore.kernel.org/all/20241206163148.83828-1-tony.luck@intel.com/