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Wed, 3 Sep 2025 03:01:00 +0000 Message-ID: Date: Tue, 2 Sep 2025 20:00:57 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v17 29/33] fs/resctrl: Introduce the interface to modify assignments in a group To: Babu Moger , , , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <281e3250d5fd715adcf734676c0e68f17a00fb59.1755224735.git.babu.moger@amd.com> From: Reinette Chatre Content-Language: en-US In-Reply-To: <281e3250d5fd715adcf734676c0e68f17a00fb59.1755224735.git.babu.moger@amd.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0245.namprd04.prod.outlook.com (2603:10b6:303:88::10) To SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB7573:EE_|DS0PR11MB7410:EE_ X-MS-Office365-Filtering-Correlation-Id: 7f3bedd1-18a9-4ed5-0dad-08ddea961c9a 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|366016|1800799024|376014|7416014|7053199007; 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When writing, '*' applies the changes > to all domains. > > Assignment states: > > _ : Unassign a counter. > > e : Assign a counter exclusively. > > Examples: > > $ cd /sys/fs/resctrl > $ cat /sys/fs/resctrl/mbm_L3_assignments > mbm_total_bytes:0=e;1=e > mbm_local_bytes:0=e;1=e > > To unassign the counter associated with the mbm_total_bytes event on > domain 0: > > $ echo "mbm_total_bytes:0=_" > mbm_L3_assignments > $ cat /sys/fs/resctrl/mbm_L3_assignments > mbm_total_bytes:0=_;1=e > mbm_local_bytes:0=e;1=e > > To unassign the counter associated with the mbm_total_bytes event on > all the domains: > > $ echo "mbm_total_bytes:*=_" > mbm_L3_assignments > $ cat /sys/fs/resctrl/mbm_L3_assignments > mbm_total_bytes:0=_;1=_ > mbm_local_bytes:0=e;1=e > > Signed-off-by: Babu Moger > --- Reviewed-by: Reinette Chatre Reinette