$ rsync -P /tmp/1g 127.0.0.1:/tmp/1g.2
1g
  1,073,741,824 100%   22.71MB/s    0:00:45 (xfr#1, to-chk=0/1)

$ rsync -P /tmp/1g -e "ssh -T" 127.0.0.1:/tmp/1g.2
1g
  1,073,741,824 100%   20.39MB/s    0:00:50 (xfr#1, to-chk=0/1)

$ rsync -P /tmp/1g -e "ssh -o Compression=no" 127.0.0.1:/tmp/1g.2
1g
  1,073,741,824 100%  193.42MB/s    0:00:05 (xfr#1, to-chk=0/1)