Re: [Xen-devel] Windows SMP

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 31/12/2008 08:50, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote:

>> different. I can do that without too much fuss but if there is
>> something
>> faster then even better.
>> 
> 
> If you compare to VM-exit overhead for every TPR access, above
> is already far far faster. Of course fewer memory accesses used
> in inserted lines, less overhead you'll see then.:-)

It'll be plenty good enough, as you'll be saving probably on the order of
5000 cycles by not exiting and emulating. You'll be hard pushed to be worse
than 5% of that.

 -- Keir



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