I am having some trouble with poor I/O running a Windows 7 VM on VirtualBox on FreeBSD 9.0.
I would like to change my virtual disk type to immutable, and then change the location of the differencing disk to a 5gb ramdisk using mdmfs.
Does that seem like it would provide a performance improvement for disk I/O? I am already using virtio for the network so I believe the problem has been isolated to the disk.