Re: [PATCH] use x86 cpu park to speedup smp_init in kexec situation

[Thomas Gleixner]

Kai,

On Wed, Dec 16 2020 at 16:45, shenkai wrote:
> 在 2020/12/16 5:20, Thomas Gleixner 写道:
>>
>>
> Thanks for your and Andy's precious comments. I would like to take a try on
>
> reconstructing this patch to make it more decent and generic.

>> It would be interesting to see the numbers just with play_dead() using
>> hlt() or mwait(eax=0, 0) for the kexec case and no other change at all.

Can you please as a first step look into this and check if the time
changes?

Thanks,

        tglx