Best rsync options to transfer data between two Mac

I am about to move my data from my old iMac to a brand new MacBook Pro. I would like to start over with a fresh install on B and copy just a subset of my data, reinstalling applications from scratch, so I am not considering using Migration assistance.

I am thinking to use rsync to do the job, but I am confused about which options I should use.

Reading man pages, I came out with this:

rsync -vazHE --progress -e ssh andrea@imac:/remote/dir /local/dir/ 2> errors.log

• v: verbose
• a: archive, to keep times, symlinks, permissions, groups, owners and traverse directories recursively
• z: to compress data
• H: to keep any hard-link
• E: to keep extended attributes
• progress: to keep an eye on job progress

Am I not considering some other useful options?

Personally, I'd be inclined to drop the z switch. Compression is only really useful over very slow connections (mobile data, dial-up) as the CPU is likely to become the bottleneck. I've certainly seen a drop in throughput with compression enabled.

Assuming your network is trusted, you would do well to use a more efficient, but perhaps less secure SSH cipher as this will probably speed up the operation a little (it certainly helps with VNC over SSH, or X11 forwarding over SSH).

• Run ssh -Q cipher on both systems and pick a cipher common to both
• Use it with rsync -vhaHE --progress -e "ssh -c aes256-cbc" andrea@imac:/remote/dir /local/dir/ 2> errors.log

PS: I also use the -h switch to get more human readable numbers in MB/s as opposed to b/s

Turns out blowfish and arcfour were disabled by default for security reasons (as of OpenSSH 6.7), so the above suggestion no longer works.

However, the good news is you can use one of your system's secure ciphers instead.

To see a list, run: ssh -Q cipher and then use the one of your choosing:

rsync -azvP --progress -e "ssh -c <insert-cipher-here>" user@hostname:/source /destination