Re: [PATCH] KVM: don't sent IPI if the vcpu is not online

[Avi Kivity]

 On 09/06/2010 12:09 PM, Alexander Graf wrote:
> > It can also be running host kernel or user code.
> In that case it's the same as running guest code, no? We'll pass by the vcpu entry check asap.

Sure, but the IPI is wasted.  If you spend 10% of your time in host 
code, you can avoid 10% of the IPIs.

(actually less, since the atomic part of the guest switch has guest_mode 
enabled)

--
error compiling committee.c: too many arguments to function

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