gdiff output/algorithm

[delanym]

This paper https://www.w3.org/TR/NOTE-gdiff-19970825.html
mentions that the delta produced by rsync can be represented as a gdiff file. I don't know if this means its using the same algorithm, or its simply about capturing the difference?

I wanted to see how efficient the rsync algorithm is so I ran
rsync -iv --no-W a.jar b.jar

sent 1,441,864 bytes  received 9,635 bytes
total size is 2,526,246  speedup is 1.74

Is there some way to output the gdiff for the transfer?

My end goal is to cross-check that the javaxdelta is functioning correctly and efficiently.