Yeah, ever since I have upgraded to 2.1-Rel my PRIQ queues just don't make sense.
They show crazy numbers, sometimes in the Gb range, they take a minute or two to stabilize to real numbers.
Like a VOIP queue should show roughly 50pps/64Kbits + 10% overhead or so per call.
It used to show that pretty much instantly when a call was started in 2.0.X.
Now it takes a minute for it to even crawl up to 64kbits.