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Tue, 14 Jan 2025 22:30:56 +0000 Message-ID: <9223d698-d16a-43c8-95c1-9839b81c2c23@intel.com> Date: Tue, 14 Jan 2025 14:30:54 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 0/2] selftests/resctrl: SNC kernel support discovery From: Reinette Chatre To: Maciej Wieczor-Retman , , CC: , , , References: <808036fb-9a2c-44c3-ac6c-5406313a232a@intel.com> Content-Language: en-US In-Reply-To: <808036fb-9a2c-44c3-ac6c-5406313a232a@intel.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 SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB7573:EE_|CH0PR11MB8236:EE_ X-MS-Office365-Filtering-Correlation-Id: 5a5c9340-a307-4521-4128-08dd34eb1cd4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|366016; 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When enabled, NUMA-aware applications can >> achieve better performance on bigger server platforms. >> >> SNC support was merged into the kernel [1]. With SNC enabled >> and kernel support in place all the tests will function normally (aside >> from effective cache size). There might be a problem when SNC is enabled >> but the system is still using an older kernel version without SNC >> support. Currently the only message displayed in that situation is a >> guess that SNC might be enabled and is causing issues. That message also >> is displayed whenever the test fails on an Intel platform. >> >> Add a mechanism to discover kernel support for SNC which will add more >> meaning and certainty to the error message. >> >> Add runtime SNC mode detection and verify how reliable that information >> is. >> >> Series was tested on Ice Lake server platforms with SNC disabled, SNC-2 >> and SNC-4. The tests were also ran with and without kernel support for >> SNC. >> >> Series applies cleanly on kselftest/next. >> > > Could you please consider this series for inclusion? > > Thank you very much. > > Reinette > (bumping visibility of request made close to holidays) This series still applies cleanly to kselftest/next. Could you please consider it for inclusion? Thank you very much. Reinette