On kraft.cloud we can (done internal stress tests for this) run thousands of specialized VMs (aka unikernels) scaled to zero, meaning that when a request for one of them arrives we can wake it up and respond within the timescales of an RTT. You can take it out for a spin, just use the -0 flag when deploying to do scale to 0 (https://docs.kraft.cloud/guides/features/scaletozero/).
Interesting – are we talking actual Linux VMs here, with binary-compatible syscalls etc., or something that applications need to be specifically built or packaged for in some way?
