[ahepp]

What drove you to choose that over something like containers?

[droelf]

Yeah, boot time, isolation (proper VM vs containers), and ease of use on a larger Hetzner box.

[ahepp]

Did you notice a substantial difference in those factors between more traditional micro VMs that use OCI images (like Firecracker) and unikernels?

[m00dy]

shorter cold-boot times.

[ahepp]

If we’re talking about cold boot times, wouldn’t the relevant metric for unikernels be the hypervisor’s boot time?

[zozbot234]

How would that compare with containers running on Firecracker or other virtio-based μVM's?

[wmf]

A unikernel on Firecracker is probably going to start faster than a container on Linux on Firecracker.

[ahepp]

I assume they meant using an OCI image for the rootfs of a firecracker VM, not running a container inside a firecracker VM.

Still difficult to see how the unikernel could be slower, but I doubt the difference would be huge? Don't have anything to back that up though.