How to measure the data throughput of TCP/IP connection between a FPGA and PC?

actually Cris72 answered what I wanted to say.

but you want to know what test pin meant in this case.

I will describe it as much as I can.

see attached file "figure1.jpg"

this is simple block diagram of your system right?

also see "figure2.jpg"

inside of StratixIV, it has an IP-core( or cores) to communicate to DSP board.

it may have some other pins which are not connected currently or not important to use.

see "figure3.jpg"

if you know what IP cores do.

you can get start signal and end signal.

put the signals on the PIO-pins.

then you can see when transfer starts and ends.

if you don't know what I am saying, you'd better forget what I say.

studying this skill takes some days.( or even months)

guessing why you think your calculation maybe wrong is.

the result is too slow compare to 100MB/sec. isn't it right?

TCP/IP is not as fast as its theory.

if you got 10MB/sec.this is the result of it. At least for now.

bye bye:D