Time/performance metrics?

Good morning,
I work with 3D tiles tilesets (Meshs & texture) with CesiumJS.
I would like get time/performance metrics? As for instance loading/displaying time, or memory/CPU consumption/sollicitation. Or other?
If you are aware of this kind of cesiumJS tools / functions ?

Thanks a lot.

Cesium has a 3D Tiles Inspector that you can add to your app to track performance:
Sandcastle example.

Here is another Scene Rendering Performance example with FPS tracking.