Avi Kivity <a...@redhat.com> wrote:
> On 02/09/2012 04:23 PM, Avi Kivity wrote:
> > > BTW do we really need fast slot creation/destruction?
> >
> > Not really, but it's good to have infrastructure that copes with
> > different workloads. If the patches keep the code simple I think it's a
> > good thing to have.
My patch is pretty simple.
> To qualify - taking several tens of milliseconds is out of the question
> as some workloads grind to a halt. But it doesn't need to be incredibly
> fast.
I think the problem is not how long it takes to create/invalidate a slot
but following faults and shadow pages reconstruction.
Similar to mmu shrinker problem we discussed before.
E.g. users will not expect sudden latency induced by pci hotplug.
Takuya
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