在 2022/1/13 上午4:42, Tejun Heo 写道:
> Hello,
>
> On Tue, Jan 11, 2022 at 05:56:01PM +0800, Cruz Zhao wrote:
>> +#ifdef CONFIG_SCHED_CORE
>> +void cpuacct_account_forceidle(int cpu, struct task_struct *tsk, u64 cputime)
>> +{
>> + struct cpuacct *ca;
>> + u64 *fi;
>> +
>> + rcu_read_lock();
>> + /*
>> + * We have hold rq->core->__lock here, which protects ca->forceidle
>> + * percpu.
>> + */
>> + for (ca = task_ca(tsk); ca; ca = parent_ca(ca)) {
>> + fi = per_cpu_ptr(ca->forceidle, cpu);
>> + *fi += cputime;
>> + }
>
> Please don't do this. Use rstat and integrate it with other stats.
>
> Thanks.
>
Thanks for suggestions, I'll try to do this using rstat. BTW, is it ok
to integrate it with cgroup_base_stat?
Best,
Cruz Zhao
