A question about CPU usage

GPU usage is constantly around %20 when Create is idle. Is it normal?

yes that is about normal depending on the exact gpu. it has to maintain the gpu cycles just to refresh the UI even if there is not much going on. even a blank scene.

two things you can check

  1. make sure “Eco Mode” is on when you are in Real-time mode. it’s in the render settings dialogue. it should be on by default. this makes a huge difference for calming gpu use after 100 cycles.
  2. make sure “stop rendering while minimized” is on in the preferences. again this should be on by default.

even with both of these on, it won’t really drop the gpu use all the way to zero until you minimize the app totally.