Re: [PATCH v2] KVM: halt-polling: poll if emulated lapic timer will fire soon

[Paolo Bonzini]

On 19/05/2016 16:52, Christian Borntraeger wrote:
>> > Would this work too and be simpler?
> Hmm, your patch does only fiddle with the grow/shrink logic (which might
> be a good idea independently of this change), but the original patch 
> actually takes into account that we have a guaranteed maximum time by a 
> wakeup timer - IOW we know exactly what the maximum poll time is.
> 

Yes, it's different.  The question is whether a 10us poll (40,000 clock
cycles) has an impact even if it's sometimes wrong.

Thanks,

Paolo