The value of JIT is that you do not need to pay any attention to it and it takes no effort to set up. It is still good to know it is there -- a lot of developer

The value of JIT is that you do not need to pay any attention to it and it takes no effort to set up. It is still good to know it is there -- a lot of developers I work with did not understand why a Java application is slow for a bit before it becomes faster. They just take it as a fact of life. (Of course JIT is just a part of this, you also have classes loaded, various mechanisms implementing lazy initialization getting initialized the first time it is used, etc.)