Le Mon, Apr 13, 2026 at 03:25:46PM -0400, Waiman Long a écrit : > On 4/13/26 3:43 AM, Qiliang Yuan wrote: > > Most kernel noise types (TICK, TIMER, RCU, etc.) are currently aliased > > to a single HK_TYPE_KERNEL_NOISE enum value. This prevents fine-grained > > runtime isolation control as all masks are forced to be identical. > > > > Un-alias service-specific housekeeping types in enum hk_type. This > > separation provides the necessary granularity for DHM subsystems to > > subscribe to and maintain independent affinity masks. > > Usually, if we want to run a latency sensitive workload like DPDK, we try to > minimize all sorts of kernel noises or interference as much as possible. Do > you have a good use case where it is advantageous to remove some types of > kernel noises from a given set of CPUs but not the others?
Right what we want to do here is to remove the aliases (HK_TYPE_TIMER, HK_TYPE_WQ, ...) and rename them to HK_TYPE_KERNEL_NOISE. Thanks. -- Frederic Weisbecker SUSE Labs
