Re: kern.hz – Windows aequivalent, high CPU usage on bhyve copmared to ESXi

[Allan Jude]

On 2018-06-18 05:06, Harry Schmalzbauer wrote:
> Hello,
> 
> has anybody found out if Windows does something similar as FreeBSD with
> kern.hz when running on a hypervisor?
> 
> I haven't done meaningful measuring, but on bhyve I see 2-digit CPU load
> with idle windows (2012R2) guest.
> I never saw that on ESXi, it's much lower there, whil FreeBSD as guest
> on ESXi is even lower when idle.
> 
> Can somebody confirm this difference?
> Is there a way to spoof hypervisor vendor string (from userland)? Resp.
> has anyone done that to see if windows behaviuor changes?
> 
> Thanks,
> 
> -harry
> 
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What does your bhyve command line invocation look like?

-- 
Allan Jude