Is it possible to speed up time on a virtual machine?

Question

virtual box

Of course, the time for a PC is set "hardware", but for a virtual machine, in theory, there is no reason to follow the hardware "time", it would be interesting to see how the OS will work if the "time is accelerated" (once every 15). Is it possible to do this?

Answer 1

Increase speed to 200% on guest machine:
VBoxManage setextradata "VM name" "VBoxInternal/TM/WarpDrivePercentage" 200
Decrease to 50% on guest machine:
VBoxManage setextradata "VM name" "VBoxInternal/TM/WarpDrivePercentage" 50
Just before that, check in the machine settings so that the guest machine does not synchronize time with the host:
VBoxManage setextradata "VM name" "VBoxInternal/TM/TSCTiedToExecution" 1
Other commands:
mirspo.narod.ru/vbox4/ch09.html#changetscmode

Answer 2

So, what exactly needs to change?

Answer 3

Performance depends on processor cycles, not system time.
If the timer goes faster, almost nothing will change, except for places where delays are artificially introduced using the timer (for example, in the graphical interface, the effect of the appearance of the menu will work out faster).