KVM | qemu | qemu-system-x86_64 | High CPU load with Windows 10 guest.

Your Windows 10 guests use much more CPU percents than older Windows 7 guests – even when doing really nothing? (process is qemu-system-x86_64) Do virsh edit GUEST Change <clock offset=’localtime’> <timer name=’rtc’ tickpolicy=’catchup’/> <timer name=’pit’ tickpolicy=’delay’/> <timer name=’hpet’ present=’no’/> <timer name=’hypervclock’ present=’yes’/> </clock> To <clock offset=’localtime’> <timer name=’hpet’ present=’yes’/> <timer name=’hypervclock’ present=’yes’/> </clock> Kudos to […]

Windows 10 1903 | Disconnected Remote Desktop Sessions cause heavy CPU load.

Its a display driver problem, Do gpedit.msc: Local Computer Policy Computer Configuration Administrative Templates Windows Components Remote Desktop Service Remote Desktop Session Host Remote Session Environment Use WDDM graphics display driver for Remote Desktop Connections to DISABLED Credits: https://answers.microsoft.com/en-us/windows/forum/all/dwmexe-high-cpu-one-core-on-target-system-after/dbce0938-60c5-4051-81ef-468e51d743ab