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Re: [Xen-devel] [PATCH RFC V8 0/17] Paravirtualized ticket spinlocks

On 05/07/2012 05:52 PM, Avi Kivity wrote:
> > Having said that, it is hard for me to resist saying :
> >  bottleneck is somewhere else on PLE m/c and IMHO answer would be
> > combination of paravirt-spinlock + pv-flush-tb.
> >
> > But I need to come up with good number to argue in favour of the claim.
> >
> > PS: Nikunj had experimented that pv-flush tlb + paravirt-spinlock is a
> > win on PLE where only one of them alone could not prove the benefit.
> >
> I'd like to see those numbers, then.

Note: it's probably best to try very wide guests, where the overhead of
iterating on all vcpus begins to show.

error compiling committee.c: too many arguments to function

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