rsync - Mar 2004 - Q regarding large transfers.

Hi,

I read in the FAQ that rsync uses ~100 bytes/file of RAM when building
the list. I wonder, is there a way to measure how long this process takes
(adding one file to the file list)?

I would like to synchronize terrabytes of data but I'm afraid the scanning
process will take a _very_ long time.

Does rsync have some smart caching algorithm up its sleeve so it does not
have to perform a total rescan upon the next synchronization?



Rgds

/PL

Per Lanvin
+46-708-555384

Inceritus
Box 29138
100 52 Stockholm

On Wed, Mar 17, 2004 at 02:22:06PM +0100, Per Lanvin
wrote:
> I wonder, is there a way to measure how long this process takes
> (adding one file to the file list)?
You could time the initial file-scan section using a stop-watch (use the
options "-v --progress" and it will tell you when it is done scanning
the files and how many there were).
> I would like to synchronize terrabytes of data but I'm afraid the
scanning
> process will take a _very_ long time.
The count of the files is the important stat, and yes, it can take a
very long time.  If the filesystem data is cached in memory (by the OS),
it will be fairly fast, otherwise it will do a lot of disk I/O.

..wayne..