rsync compression (-z) and timestamp

Paul Slootman paul+rsync at
Tue Jan 27 13:49:52 GMT 2009

On Tue 27 Jan 2009, Paul Slootman wrote:

> No, the data over the wire is compressed with the -z option; not the
> file.

Correction: more specifically, the data between the sender and the
receiver processes is compressed.

Unfortunately this also happens when the transfer is local and -z
happens to be passed as an option; the result is that the transfer is
slowed down significantly without any benefit at all. Rsync should
perhaps give a warning about the useless use of -z and maybe ignore it?


More information about the rsync mailing list