* Alexander Graf <[email protected]> wrote:
> > So? I only inquired about latencies, asking what impact on
> > latencies is. Regardless of the circumstances we do not want to
> > introduce unbound latencies.
> >
> > If there are no unbound latencies then i'm happy.
>
> Sure, I'm just saying that the mechanism was invented for
> unmodified guests :).
Well, but that does not excuse the introduction of unbound latencies.
(if those latencies are introduced here - i don't know, i'm asking.)
> > Well, since user-space gets the MMIOs only once the guest exits
> > it's not independent, is it?
>
> If we don't know when a guest ends an MMIO stream, we can't
> optimize it. Period. [...]
But that's no excuse. If you cannot optimize them without
unnacceptable collateral damage then don't optimize it then.
That's why i asked what the damage is - if there's any damage.
Thanks,
Ingo
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