rasterDuration property Null safety
The duration to rasterize the frame on the raster thread.
To ensure smooth animations of X fps, this should not exceed 1000/X milliseconds. That's about 16ms for 60fps, and 8ms for 120fps.
Implementation
Duration get rasterDuration => _rawDuration(FramePhase.rasterFinish) - _rawDuration(FramePhase.rasterStart);