Create and develop a game is hard task, but optimize one is even harder. You can ruin a perfect game design and a beautiful artset by filling the source code with useless and/or unnecessary stuff. In order to keep things in control a performance monitor comes in handy.
Mrdoob stats provides a simple info box that will help you monitor your code performance. It can tell you the following:
- FPS Frames per second, how many frames were rendered in 1 second. The higher the number, the better.
- MS Milliseconds needed to render a frame. The lower number, the better.
- MEM Memory your code is using, if it increases per frame is VERY wrong.
- MAX Maximum memory the application reached.
It is another great tool to know what is happing under the hood.