To clarify a little more, trying to do deltas locally doesn't actually get you anything, because you still have to do all the same disk work on each end locally even if only deltas were sent over the network. If both ends are the same machine, generating and reintegrating deltas is just more cpu work and no less disk work.

You can prove it to yourself by forcing it to do deltas by using localhost::module/path/to/stuff as either the source or dest and see if it goes any faster.

--
bkw

On 2/22/2013 4:31 PM, Kevin Korb wrote:
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Both of your paths are local.  In that case rsync forces --whole-file.

The delta transfer is only for reducing network bandwidth usage when
rsync is operating over the network.

On 02/22/13 16:28, Tony Abernethy wrote:
Check the TIMESTAMPS on both source and target. (you probably want
-av or such (instead of -vr) to include ...)

-----Original Message----- From: rsync-boun...@lists.samba.org
[mailto:rsync-boun...@lists.samba.org] On Behalf Of Grant Sent:
Friday, February 22, 2013 3:24 PM To: rsync@lists.samba.org
Subject: speedup is always 0.99

I'm syncing from a USB disk to my hard disk like this:

rsync -vr /path/to/usb/disk/dir/ /path/to/hard/disk/dir/

But the speedup is always 0.99 which I think means it is just
copying the files each time instead of syncing them.  What could be
wrong?

- Grant


- --
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
        Kevin Korb                      Phone:    (407) 252-6853
        Systems Administrator           Internet:
        FutureQuest, Inc.               ke...@futurequest.net  (work)
        Orlando, Florida                k...@sanitarium.net (personal)
        Web page:                       http://www.sanitarium.net/
        PGP public key available on web site.
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