[publysher]

Your remark about isolation is not entirely true: when you run multiple services in one VM, there are still a number of shared resources.

Most notably, all services will share the same heap, so one ill-behaved service can bring down all the other services. The only way to prevent this, is to run each service in a separate VM.

And at that point, you are once again comparing one Go runtime per service with one JVM per service.