I've found that the -W option is generally faster even over a network
- in my case, the network is a LAN, 100Mb/s full duplex, and not heavily
loaded at 4am. Computers at either end are 533MHz Alphas so the
rsync checksumming is fast, but regardless the -W options seem to speed
things up.
On Wed, 7 Mar 2001, Dave Dykstra wrote:
> I have long assumed but never verified that not using -W to disable the
> rsync incremental algorithm on a local copy, especially on NFS-mounted
> files, would be much slower than using -W. I just did a measurement on a
> copy between two nfs-mounted ~5MB files with and without -W and found it
> took over 3 times longer without the -W.
>
> Can anybody think of a scenario on a local copy where not doing -W would be
> desired (other than debugging)? If not, maybe it should be the default if
> both the source and destination are on the local host. Perhaps at least
> for debugging their should be an option to do the opposite behavior.
>
> - Dave Dykstra
>
>
--
Robert Scholten Tel: +61 3 8344 5457 Mob: 0412 834 196
School of Physics Fax: +61 3 9347 4783
University of Melbourne email: [EMAIL PROTECTED]
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