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	for speck@linutronix.de; Wed, 06 Jun 2018 23:50:40 +0200
Date: Wed, 6 Jun 2018 23:50:39 +0200 (CEST)
From: Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [patch V2 12/12] x86/apic: Ignore secondary threads if
 nosmt=force
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To: speck@linutronix.de
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On Wed, 6 Jun 2018, speck for Linus Torvalds wrote:
> So I would really wanmt to have a big note along with the
> 
>   "This is more or less equivalent to disabling SMT in the BIOS"
> 
> because on some loads it might be a case of "less equivalent" than not.

Fair enough. I surely meant it in the sense of the kernels POV, not from
the performance perspective. I'll amend the changelog in case we come to
the conclusion that this whole thing is worthwhile.

I personaly like it for a completely non speculative reason. I often enough
cursed when I had to fiddle in the BIOS settings to test SMT vs. non SMT
stuff. Admittedly virtual machines have made that way simpler, but it's
still easier to just tweak the kernel command line :)

Thanks,

	tglx