sched_ext: idle: Introduce SCX_OPS_BUILTIN_IDLE_PER_NODE

Browse source

Add the new scheduler flag SCX_OPS_BUILTIN_IDLE_PER_NODE, which allows
BPF schedulers to select between using a global flat idle cpumask or
multiple per-node cpumasks.

This only introduces the flag and the mechanism to enable/disable this
feature without affecting any scheduling behavior.

Cc: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Signed-off-by: Andrea Righi <arighi@nvidia.com>
Reviewed-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

...

This commit is contained in:

Andrea Righi 2025-02-14 20:40:05 +01:00 • committed by Tejun Heo

parent d73249f887

commit 0aaaf89df8

4 changed files with 46 additions and 11 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

kernel/sched/ext.c

View file

29

kernel/sched/ext_idle.c

View file

4

kernel/sched/ext_idle.h

View file

3

tools/sched_ext/include/scx/compat.h

View file