If JVM is purported to be so good in terms of performance, why not just create a JOS too? The VMs is only as fast as the OS from my basic understanding. It woul

If JVM is purported to be so good in terms of performance, why not just create a JOS too? The VMs is only as fast as the OS from my basic understanding. It would mean an easy port of applications in JOS to other JVMs too.