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Thu, 11 Jun 2026 05:02:07 +0000 Message-ID: <3de9f11b-d10f-4a1e-9239-e3cccdd36ce5@intel.com> Date: Thu, 11 Jun 2026 13:01:56 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [tip:sched/core] [sched/topology] 9e005ed211: stress-ng.kill.ops_per_sec 4.6% regression To: kernel test robot CC: , , , , K Prateek Nayak , Peter Zijlstra , Andrea Righi , References: <202606111053.c484a580-lkp@intel.com> Content-Language: en-US From: "Chen, Yu C" In-Reply-To: <202606111053.c484a580-lkp@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SI2PR01CA0002.apcprd01.prod.exchangelabs.com (2603:1096:4:191::21) To DM4PR11MB6020.namprd11.prod.outlook.com (2603:10b6:8:61::19) 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: DM4PR11MB6020:EE_|IA3PR11MB8988:EE_ X-MS-Office365-Filtering-Correlation-Id: 71553cc5-b40f-4d09-9296-08dec7769616 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|376014|366016|1800799024|11063799006|22082099003|18002099003|56012099006|3023799007; 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BTW the commit log indicates nr_idle_scan is initialized to a stale value 512, sds->alloc_flags = SD_SHARE_LLC, the wakeup before the next period LB in this LLC domain might have slight higher latency though. But consider your test last for 60 seconds which is much longer than the first period LB, this should not be a problem. thanks, Chenyu