Re: [PATCH] cgroup/cpu: document cpu.stat nice_usec and core_sched.force_idle_usec

[Michal Koutný]

On Sat, Jul 18, 2026 at 04:01:00PM +0800, Tao Cui <cui.tao@xxxxxxxxx> wrote:
> From: Tao Cui <cuitao@xxxxxxxxxx>
> 
> cgroup_base_stat_cputime_show() unconditionally prints a fourth base
> stat, nice_usec, in addition to usage_usec/user_usec/system_usec, and
> also prints core_sched.force_idle_usec when CONFIG_SCHED_CORE is enabled.
> Neither field is currently described in the cpu.stat section of
> cgroup-v2.rst, which still states it "always reports the following three
> stats".

Just to better sense popularity of the fields -- have you found this out
by:
a) reading cpu.stat and being confused about semantics of the fields or
b) scanning files/code vs docs looking for discrepancies?

Thanks,
Michal

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