> Does this also apply for data that's already compressed?
Assuming that rsync runs close to line speed on your computer, then a 1.5x speed up would be by definition impossible for already-compressed data. Moreover, rsync already offers compression, so any improvement would have to be from multiplexing. Maybe that does get 1.5x on some connections, but I'd be skeptical until I saw some real data.
Assuming that rsync runs close to line speed on your computer, then a 1.5x speed up would be by definition impossible for already-compressed data. Moreover, rsync already offers compression, so any improvement would have to be from multiplexing. Maybe that does get 1.5x on some connections, but I'd be skeptical until I saw some real data.