Linux Host: High CPU usage with idle Windows 10 guest

[rfried]

When Windows 10 is in idle mode, there still high CPU usage in host. Host is Kubuntu 18.04.

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rfried@rfried-mobl1 ~/dev/vim-bitwise master $ top
top - 16:34:02 up 6 days, 55 min,  8 users,  load average: 1.49, 1.84, 1.89
Tasks: 357 total,   1 running, 356 sleeping,   0 stopped,   0 zombie
%Cpu(s):  2.0 us,  7.1 sy,  0.0 ni, 90.5 id,  0.0 wa,  0.0 hi,  0.4 si,  0.0 st
MiB Mem :  32001.6 total,   1579.0 free,  13931.3 used,  16491.3 buff/cache
MiB Swap:   2048.0 total,   2036.5 free,     11.5 used.  17438.4 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                 
27416 rfried    20   0   11.1g   8.5g   8.3g S 138.1  27.2 681:52.72 VirtualBoxVM  

[rfried]

Virtualbox Log.

[rfried]

Correction. Host is Kubuntu 19.04.