> The way virtual machines work, however, is by packaging the operating system and code together. The operating systems on the virtual machines believes that it

> The way virtual machines work, however, is by packaging the operating system and code together. The operating systems on the virtual machines believes that it has a server to its own, but in reality, it’s sharing the server with a bunch of other virtual machines — all of which run their own operating systems and don’t know of each other. Underneath it all is the host operating system that makes all of these guests believe they are the most important thing in the world. You can see why this is a problem. The guest virtual machines basically run on emulated servers, and that creates a lot of overhead and slows things down (but in return, you could run lots of different operating systems on the same server, too). Wait a second. Isn't this the whole point of hardware virtualization support? So that hypervisors don't have all those VM overhead slowing things down?