What is Exact Througput

Hi guys,

I'm trying to figure out max throughput on LTM. So I've seen "Dashboard", "Performance Graph(Throughput)", "CLI Command(tmsh show sys performacne)". These values are all different. dashboard value changes in every 3 sec.( Performance graph(per 10sec), show sys perforamance throughput(8~15sec))

I'd like to know. What is real(?) Throughput? and Why there is difference?, What is difference? How LTM displays the throughput value. (polling OID internally? or something)

If you know about this, HELP ME. Thank you, in advance.