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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jan 2026 09:03:30.8135 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b4df90d3-0789-44b5-287c-08de59951d39 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0002992B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9418 Hello Zecheng, On 1/22/2026 2:03 AM, Zecheng Li wrote: > Hi all, > > This patch series improves CFS cache performance by allocating cfs_rq > and sched_entity together in the per-cpu allocator. It allows for > replacing the pointer arrays in task_group with a per-cpu offset. I tested this with a cgroup stress test and haven't seen any splats. Feel free to include: Reviewed-by: K Prateek Nayak Tested-by: K Prateek Nayak Peter, I suppose you'll still need this with sched/flat since all the intermediate sched_entities and cfs_rqs still l remain and afaict co-locating sched_entity and the group cfs_rq can help since prefetchers will very likely fetch the other when one of them is accessed. -- Thanks and Regards, Prateek