Recently I made the switch to Ubuntu 12.10 as my main OS for my laptop. For the longest time, I've been running Windows 7 with Ubuntu 12.04 inside VirtualBox. As I found myself more and more inside the virtualbox, I decided to switch roles.
The problem I'm seeing is that running windows 7 inside VirtualBox on top of a linux host seems to be slower than when the roles were reversed. One thing in particular I noticed was on the Windows 7 guest vm, the CPU frequency reflected the default frequency (2GHz). To contrast this, I created a Windows 7 VM on top of a windows 7 host and it shows the turbo mode frequency and is much snappier than my VM being hosted on Ubuntu.
Is there anything special I need to do to enable the turbo mode? Are there any other steps I can do to make the virtual machine run better? The VM I created has 4 Cores, 8 GB RAM and 256GB video memory dedicated to it. Since I'm a .NET developer, I need some horsepower when I'm running Windows...
If it's of any help, here are the specs of the machine I'm trying to get this to work on:
Processor: i7-2630QM RAM: 16GB Video: NVidia GTX 460M Storage: 128 GB Crucial M4 SSD, 750GB HDD