CPU Profiling - Redraw Viewports?


I am running a saved stat file through the Frontend to do CPU profiling and am noticing that ‘Redraw Viewports’ is my problem.

Does anyone know exactly what that is?
It sounds like it should be easy to understand but I really don’t know what that refers to.


I am having this exact issue running Unreal Engine 4.20. Anyone know what Redraw Viewports is? Is there any sort of glossary for profile terminology?

I’m guessing that it has to do with the engine being forced to wait/skip a frame for some reason and then you’ll get a high number called this.
I think if you make sure to optimize until you don’t get a frame skip then this will disappear.