I have no idea how AWS run their VMs, was just saying a slow storage driver could give such results.
Oh, absolutely - not to contest that! There's a whole lot of academia on 'para-virtualized' and so on in this light.
That's interesting to hear about FreeBSD; basically all of my experience has been with Linux/Windows.
I have no idea how AWS run their VMs, was just saying a slow storage driver could give such results.