Re: [PATCH 09/17] sched/core: Add support for nohz_full CPUs

From
K Prateek Nayak <kprateek.nayak@amd.com>
Date
2025-11-24 04:36:18
Also in
lkml
Reply to
Shrikanth Hegde, 2025-11-21
Hello Shrikanth,

On 11/21/2025 10:10 AM, Shrikanth Hegde wrote:
quoted
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

Thread (42 messages) 42 messages, 9 authors, last reply 2026-03-26
Keyboard shortcuts
hback out one level
jnext message in thread / next series-diff position
kprevious message in thread / previous series-diff position
ldrill in
Escclose help / fold thread tree
?toggle this help