I was interested on the relative sub-project size in Equalizer, so I’ve quickly hacked together a small perl script extracting this data from the CMake output. Note that this is not an exact measure of the project complexity since (I believe) it only counts the number of files in each project, and not the lines of code or compile time.
Collage, the network library, is quite a big part and the one which will probably grow in relative size in the future. The Equalizer client library is relatively big, mostly since it contains a lot of code for window-system coupling. The server library is relatively small, considering that it contains all the rendering algorithms. On the examples side, eqPly is unsurprisingly the biggest one as it contains the most features.