Binary package “wmcube” in ubuntu xenial

spinning 3D object that shows the current CPU load

 wmcube is a dockapp that displays a realtime rotating 3D object which
 indicates current CPU load. The higher the load, the faster the
 object spins. On SMP machines one instance can be run for each
 processor.
 .
 Originally wmcube could spin only a cube, hence the name.