bhyve+windows 7 multicore performance

[Rodney W. Grimes]

> 
> On Wed, 4 Dec 2019, Darius Mihai wrote:
> 
> > 
> > 
> > On Wed, Dec 4, 2019, 18:22 Wojciech Puchar <wojtek at puchar.net> wrote:
> >       >>>
> >       >>> Try 4 cores, and drop the priority boost, you may be causeing
> >       >>
> >       >> Well i need more cores than 4 for that VM.
> >       >> I will try even number (10) and no nice.
> >       >
> >       > If 4 cores performs better than 10 cores why would you want
> >
> >       performs better per thread. Not as total.
> > 
> >
> >       removing -P option improved performance a bit. Well - a large bit.
> > 
> > 
> > If I remember correctly, windows runs PAUSE very often when idling,
> > so having many cores that stay idle may slow down the system
> > since -P forces context switches when that instruction is
> > executed.?
> > 
> > Darius
> Possibly. But for sure - this made things faster a lot. Actually close to 
> bare metal performance.

Does this close the issue of performance for you and I can remove this
thread from my list of active investigation?

THanks,
-- 
Rod Grimes                                                 rgrimes at freebsd.org