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% > Marco Orsatti > direttore > I.T. Museum > Museo dell’evoluzione Informatica > > www.itmuseum.it > p.zza Municipio, 15 - 46022 Felonica (MN) > Tel. +39 320 26 92 994 > Mail. [email protected] > Il giorno 17 apr 2025, alle ore 14:47, Kevin Oberman <[email protected]> ha > scritto: > > On Thu, Apr 17, 2025 at 2:16 AM Marco Orsatti <[email protected] > <mailto:[email protected]>> wrote: >> G’day >> >> I installed a windows 11 virtual machine with bhyve on FreeBSD 14.2 x64 and >> I always have a very busy CPU even when windows is in Idle. >> I tried different CPU configurations for the VM, but without success. >> >> This is the current configuration (vm-bhyve): >> >> loader="uefi" >> graphics_port="5950" >> graphics="yes" >> graphics_res="1024x768" >> xhci_mouse="yes" >> cpu=8 >> cpu_sockets=4 >> cpu_cores=2 >> #cpu_threads=1 >> memory=16G >> ahci_device_limit="8" >> network0_type="virtio-net" >> network0_switch=“firewall" >> disk0_type="ahci-hd" >> disk0_name="/dev/zvol/vm/win11" >> disk0_dev="custom" >> utctime="no" >> bhyve_options="-AP" >> >> The first VM is Windows 11, the second is FreeBSD, the third is Debian, and >> the others are Windows 10: >> >> >> >> >> >> Could it be an incompatibility between windows 11 and my CPU (E5-2690 v4)? >> >> Thanks >> >> Marco > > This is a long shot, but Microsoft has admitted that Outlook Classic can > cause Windows to spike CPU use that is significant. THey have no fix and your > problem is likely not this, but it is a possibility. Obviously, if you don't > run Outlook Classic, this is not the problem. You can see the article at > https://www.theregister.com/2025/04/16/classic_outlook_cpu_spike/ > -- > Kevin Oberman, Part time kid herder and retired Network Engineer. > E-mail: [email protected] <mailto:[email protected]> > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
