Re: Win 11 Pro has high CPU usage on idle in bhyve

Reply: Oleksandr Kryvulia : "Re: Win 11 Pro has high CPU usage on idle in bhyve"
In reply to: Mark Peek : "Re: Win 11 Pro has high CPU usage on idle in bhyve"
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From: Marco Orsatti <marco.dmc12_at_gmail.com>
Date: Thu, 17 Apr 2025 17:45:55 UTC

I actually connect to the VM via RDP (from another PC), but when I took the screenshot and looked at the CPU, there is no active connection, neither VNC nor RDP.

I have tested the various editions of Win11, Pro, LTSC, IoT, and they all have the same CPU problem.




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> Il giorno 17 apr 2025, alle ore 19:32, Mark Peek <mp@freebsd.org> ha scritto:
> 
> On Thu, Apr 17, 2025 at 10:19 AM Marco Orsatti <marco.dmc12@gmail.com <mailto:marco.dmc12@gmail.com>> wrote:
>> Thanks Kevin for the info.
>> 
>> I checked, but there is no Outlook Classic in the VM, I also used this script (https://github.com/Raphire/Win11Debloat) to remove unnecessary components, but the CPU is still very much in use.
>> 
>> It's really a strange behavior because from inside the VM the CPU usage is around 3% while at the same time from the Host it is at 240%
> 
> Since you're running in graphics mode you likely have a VNC client running to connect to it. Try disconnecting the VNC connection and check the bhyve CPU usage. Screen updates need to be sent over VNC so even little changes (blinking cursors, clock, etc.) will generate traffic and use CPU.
> 
> Mark