> I don't have a reference, but I'd not be surprised to see on 
quoted text
> virtual
> machines for this to be even stronger; each invlpg would be a
> hypercall, compared to only one for the total flush.
> 

I agree that overhead could be more in virtual machines. Questions 
is that does VMs
are designed with evaluation of performance issues at 
micro-architetural level. Is this the best design for virtual 
machines or Linux ?

I don't see many numbers or published paper to make a claim.

Regards,
Vineet


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