[$] The Firecracker virtual machine monitor
Cloud computing services that run customer code in short-lived processesare often called "serverless". Butunder the hood, virtual machines (VMs) are usually launched to run that isolatedcode on demand. The boot times for these VMs can be slow. This is the causeof noticeable start-up latency in a serverless platform like Amazon WebServices (AWS) Lambda. Toaddress the start-up latency, AWS developed Firecracker, a lightweightvirtual machine monitor (VMM), which it recentlyreleasedas open-source software. Firecracker emulates a minimal device modelto launch Linux guest VMs more quickly. It's an interesting exploration ofimproving security and hardware utilization by using a minimal VMM built withalmost no legacy emulation.