FPSMeter can measure:
- frames per second
- number of milliseconds between frames
- number of milliseconds it takes to render one frame
FPSMeter rendering is optimized and chained to requestAnimationFrame (with a polyfill for older browsers), so it should be as smooth and as fast as possible. It also supports multiple instances on one page, has show/hide methods that also pause the meter rendering, and color heatmaps that make themes even more pretty!