How can I measure the advertising intervals of a peripheral?

[Malvin2000]

I would like to know how frequently my peripheral is sending advertising and data packets. I've tried using ble-sniffer-osx but it doesn't actually reveal any device names for some reason, so it's not trivial to use. Is it possible to do this using Xcode's Bluetooth Explorer utility to do this?

[ChipChipperson]

Clearly I'm not asking a question that cannot be answered concisely, nor obviously am I interested in edge cases, right? Generally, I'm just inquiring after the possibility of measuring the frequency of data packets sent from a peripheral to a central, in any given scenario (device/chipset, etc). For maximum groking, procurement of either an Frontline or Ellisys is in order :) Thanks again!