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SubjectRe: [PATCH] x86: Add clflush before monitor for Intel 7400 series
Pallipadi, Venkatesh wrote:
>>>
>> I guess I'm a bit confused about the tradeoff of CLFLUSH versus simply
>> disabling MWAIT. This is a relatively recent processor and so
>> optimizing matters (if this was a P4 I would be more worried about what
>> has least impact on the kernel as a whole.)
>
> As of now this is only for a limited models of CPUs (MP CPUs)
> and not a norm. It is a errata on this CPU and not
> something that is going to become architectural.
>

Yes, I understand. However, there is still the option to disable MWAIT,
and the question is still open if it makes sense.

-hpa


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