[PATCH 09/17] sched/core: Add support for nohz_full CPUs
K Prateek Nayak
kprateek.nayak at amd.com
Mon Nov 24 15:36:06 AEDT 2025
Hello Shrikanth,
On 11/21/2025 10:10 AM, Shrikanth Hegde wrote:
>> Wouldn't the task be pinned if it is running on a nohz CPU?
>> We don't push out pinned tasks so this seems unnecessary.
>> Am I missing something?
>>
>
> No. Task will not be pinned if it running on nohz_full unless
> user has done a taskset. They are still part of sched domains.
>
> Pinning is usually true for isolcpus. You need to explicity set taskset
> for isolcpus since by default you won't go to those CPUs.
TIL! I was under the impression that nohz_full is a superset of isolcpus
but I was clearly mistaken. Thank you for clarifying.
--
Thanks and Regards,
Prateek
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