Hi Peter,
Thanks for the comments.
On 2020/12/8 22:16, Peter Zijlstra wrote:
> On Tue, Dec 08, 2020 at 09:49:57AM +0800, Aubrey Li wrote:
>> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
>> index c4da7e17b906..b8af602dea79 100644
>> --- a/kernel/sched/core.c
>> +++ b/kernel/sched/core.c
On Tue, Dec 08, 2020 at 09:49:57AM +0800, Aubrey Li wrote:
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index c4da7e17b906..b8af602dea79 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -3999,6 +3999,7 @@ void scheduler_tick(void)
> rq_lock(rq, &rf);
>
>
Add idle cpumask to track idle cpus in sched domain. Every time
a CPU enters idle, the CPU is set in idle cpumask to be a wakeup
target. And if the CPU is not in idle, the CPU is cleared in idle
cpumask during scheduler tick to ratelimit idle cpumask update.
When a task wakes up to select an idle
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