[amibroker] metrics on the afl timing

[murthysuresh]

Hello
I have turned on the afl timing. I see a entry back 22518, fwd 100000. 
what does it mean. how do i determine if it is right or wrong. 
obviously the builtin formulas like back 364 fwd=0/
I am running the woodies cci afl.
Regafds

Suresh