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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?BnDchKtSKoVIJ3jC2nu+SubXJ3ywtGlGcsDjn1Ah769S06Ac5ZXWJ5N1N4iq?= =?us-ascii?Q?MwWdXBspFvJ/7lXPkdYzCi0YuBb97XUvJrPkcaP3AlY4huH5Fb2KPdTNKPvP?= =?us-ascii?Q?Ad9eVNsE63M/vmt/waK3+83XexRgRmBwLkwo0uLVEHfVNSeZD5E4yDo1D7HB?= =?us-ascii?Q?I4fUIdh6oWnBKAedtLfepTsjaDbqhB12xdiOa+y3KFcyMQ9wMeMTM8o6FcHF?= =?us-ascii?Q?NN9/tk+tPsvkk5H3zbErfWH1mmA+58yaGlDamoJDUHNGphcklenD2ZDNuE4w?= =?us-ascii?Q?P2e+GHHoPGzaFiVFuV/8X7vHjBSniIrS1u2yoy21fzk58qrWQinK5OuLcYo8?= =?us-ascii?Q?XegsGEYYnT3Kn7RVraVXTm3wttAIB7QVR2UoezQuNUbEApiar/n/llZ2ypoW?= =?us-ascii?Q?zB4qTb9Ro5yDU7rjwY6m8oYasdNNRZvhxtSNbBXcgygEH982k+AqmrLAuZcy?= =?us-ascii?Q?Lw1P3G5iyqbqi8lVhbuwK7zu8avBnwTwAiU2H+CLQ3Kgq0eW4gEQKqVjZX/B?= =?us-ascii?Q?C/LrzsgMDcEDpmmHO+66g0dYv1xmwpgiJbIfagAJAgYu08l19EhIUJLoh8Ex?= =?us-ascii?Q?zhLE3u7P0xgEfvnEa3c7Dr42W3Z5t7hbfkI1GYV3M2EpQEP1SL+fBM58VEnv?= =?us-ascii?Q?xJrnwK54HkJBuM9Nt9xjysX7mPtcR9a/sHBnXz/ObDzwb0UiDHnVxs3J3ctg?= =?us-ascii?Q?oCOAmoNiW3j4tfWQfb6B0LautTxhln0kXQk+fuVx38397MdbATKdWBQ/nQu5?= =?us-ascii?Q?MWc/GllC+PuU2y8l9GxHwSZNFW7lzCFoZbZuJEDKOuSs0Cv3K3/Qm91+8mVF?= =?us-ascii?Q?Iw0EaUGS92k5rGZ+avJOHXO7Q0xis6NFcNFYQciD5sD3VD1wyoguBp3NSARb?= =?us-ascii?Q?U7UDicDjb4zFJbHzdvXg1KdCfapgQa7kKi0gjrao3czpIOQH+nia29xSMW7V?= =?us-ascii?Q?FZs+pMfxfRKe8jdvkm/bKsaR8k7q/e23vCxZNe3Pxwnfqs5QMiYHlhg0VADe?= =?us-ascii?Q?e/3Nhwe0rBq8fVAvhbAmKw5DY9yo2UgWrksKPNdQAzsYFfeqDKSeCKKOGRCd?= =?us-ascii?Q?zdDnQdxDpJKOspZelkFQ5GKaWrVwuWwjMPwkZQedOwwjrq8HjGwwOOlquv+1?= =?us-ascii?Q?j0YmPRB4rwW1MepSDXmYNXtQ20YsinymSvBGvva4WbExb0xGiYm21iSNWym6?= =?us-ascii?Q?mxbCiICCaGCaAoEseKbUn2pnKbVk5Es0KkCLqtYunp5EzFjYPA+tLn3UizLm?= =?us-ascii?Q?/ZejjlMjLkdiQLYtE3MB2MOESMSt4AxCsPEP8oFpKiqEwboU5/H1W9IpePcf?= =?us-ascii?Q?Jf3txI9h7tBdC9oQclNIIn6FsW+tzQ/3c6Hpt0HPCs21x7ggnIsQujZudIUb?= =?us-ascii?Q?T3XYYdy2+eC+NfAkthpf1tyWhznC8JHxP9qYHai/3I8slsSHAmpS1eg0hl4g?= =?us-ascii?Q?uAVGbxOY7klvilroZuyIKTsioFof5JTeqV7knLm6OapYh+/Mec35QFVKcAVm?= =?us-ascii?Q?dN6nNJrlAS1Tx3933jp8+PiNx22muYl0Ds1So5VwqFVSh+08QaW1fSgM0fty?= =?us-ascii?Q?lmcAIDVMQcT0wpK2i19E7y019KknmBAtmCEnr3pF?= X-MS-Exchange-CrossTenant-Network-Message-Id: e1388203-ca8e-4637-51cb-08dba2de8555 X-MS-Exchange-CrossTenant-AuthSource: MN0PR11MB6206.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Aug 2023 07:08:00.8209 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: zNvgBHKeC6og68+X+jOaE0rZNEQJcUP6QOLewoc3kzVmRFtYfFCzudWC4x2fG0CB2TQ6krVChpj5qPqdJLECAw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR11MB7094 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023-08-22 at 14:48:50 +0800, Chen Yu wrote: > Hi Peter, Mike, > > On 2023-08-18 at 09:09:29 +0800, Chen Yu wrote: > > On 2023-08-16 at 15:40:59 +0200, Peter Zijlstra wrote: > > > On Wed, Aug 16, 2023 at 02:37:16PM +0200, Peter Zijlstra wrote: > > > > On Mon, Aug 14, 2023 at 08:32:55PM +0200, Mike Galbraith wrote: [snip...] > Reducing the spinlock contention could help improve the situation. > Feng Tang told me that there is a discussion on the LKML related to high > slub spinlock contention[2]. And Feng provides a hack patch which The discussion is at https://lore.kernel.org/all/ZL+R5kJpnHMUgGY2@feng-clx/ thanks, Chenyu