FreeBSD on a vps

I’ve just finished creating a couple of FreeBSD routers running Quagga for our office and I’d forgotten how much I liked FreeBSD. Prior to this past couple of weeks I hadn’t used it since 2.1.

I’m thinking of getting a KVM vps and installing FreeBSD on there but I’m just wondering about CPU utilization. Assuming your average two core KVM is it going to cause problems for the provider when I’m compiling packages from source? What about compiling a custom kernel?

Any tidbits of useful information I’d need for running it under KVM? I recall reading something about virtio drivers?

Thanks.