- For KVM, there is a 5-10% penalty on both read and write.
- For XEN, the penalty is much larger for read/write, but seek time is better.
Xen: 7GB memory, 8 VCPU
KVM: 8GB memory, 8 VCPU
Native: 8GB memory, 8CPU
bonnie++ -s 24576 -x 10 -n 512