quesiton about PerfSocket_UDP.cpp

["John J. Sheftic" <jjs9504 --at-- it.rit.edu>]

I am trying to determine some jitter variations in my wireless network and was trying to record the differences in transit time across the network.  Since Jitter is an unsigned value it is difficult to tell exactly if packets are consistently arriving
late or both early and late compared to the average.  In the PerfSocket_UDP.cpp class I noticed a deltaTransit variable and that looks promising.  What exactly is deltaTransit calculating and what unit is it reported in.  I need to be able to see if
packets are arriving early and then late causing Jitter to rise or whether it is a consistent late arrival.  Thanks for your help.