one impressive thing about KVM is how fast vmexits are. it's sometimes hard to appreciate that a lot until you have Hyper-V as a comparison

(Especially on x86)

@never_released interesting. Are there any good overall perf comparisons between hyper-v and kvm?
@never_released are you looking at specific vmexits? Would be interested to know what we're doing that's causing that delta...
@benpye it's pretty much generalised. an MMIO vmexit ends up overall being ~10x more expensive versus KVM