How To Tell If cdn-sync Is Working Correctly?

Hi,

Just upgraded our Satellite to 5.8. Activated new manifest successfully. When I run cdn-sync the only output I see is:

sudo cdn-sync -v
12:04:16 Total time: 0:00:00

How can I confirm this command is working correctly? satellite-sync took an hour or more to run even when there were no updates.

Thanks!

Jim