[Mordekay]

On linux you cannot simply run a command and magically you can set your server to 1000fps. You need to run your own kernel. If you have a VPS only or no root access you cannot do anything like that. If your host however says that he is "a professional game-server host" then he can do that, most likely against an extra fee.

But 1000fps is a fairly tale, your server won't become magically the best with this.