Migration Assistant

migration assistant (MA) running for 15 hours. From: 2011 MacBook Pro/High Sierra To: 2018 MacBook Pro/Mojove. Wondering if moving 475gb of data should take this long, or if this is normal.

• no error messages
• progress bar almost to the end
• both units spinning wheel (not rainbow, just network spinning wheel)

At what point do I terminate the process?

Thanks....