id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
16535	High CPU on Host while Low CPU on Guest	archenroot		"I am referring here to very old bug found:
https://www.virtualbox.org/ticket/894

I am on Gentoo system with kernel 4.10.0 and guest is running Windows 10 x64 - hardware is Dell XPS 9550 with USB-C.

Situation is similar to that old bug, while having about 2-10% CPU usage in guest, the host VirtualBox processes consumes about 20-50%. I checked the USB config and I was using default OHCI 1.x, I switched it off, while GUI tells you that it will be enabled by default anyway on the start and tested again and voiala, the load dropped down. Note that I was experiencing this issue for few weeks.

Now I switched to xHCI and the load is still low. So it actually only happened on newly installed Windows 10 with default VM settings.

I think the only way to reproduce this behavior is to reinstall Windows in new guest again.

Regards,

Ladislav




"	defect	new	other	VirtualBox 5.1.14				other	other