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Date:   Wed, 16 Dec 2020 11:12:49 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     "shenkai \(D\)" <shenkai8@...wei.com>,
        Andy Lutomirski <luto@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
        hewenliang4@...wei.com, hushiyuan@...wei.com,
        luolongjun@...wei.com, hejingxian@...wei.com
Subject: Re: [PATCH] use x86 cpu park to speedup smp_init in kexec situation

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

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