Hello Rsync devs,

We're investigating ways to provide large scale software updates for multi-gigabyte games, and have recently begun to explore whether rsync may fit the bill. In particular, the checksum-updating patch looks like it might be able to solve our biggest concerns about CPU load on the update server, since the actual content being served will change quite rarely.

Would an rsync server running 3.0 CVS + the checksum-updating patch still retain the precomputed checksum advantage when talking to an older 2.6.9 client? Or would a 3.0 client be required on both sides?

Alternatively, would it be difficult to backport the checksum-updating patch to a 2.6.9 server?

Lastly, does anyone have any empirical data on how well an rsync server with checksum-updating works with large number (eg: hundreds to thousands) of simultaneous clients? If not, we'll be happy to provide some data from our own testing if we do end up going down this path.

Thanks,
-Gav

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Gavriel State Founder & CTO
TransGaming Inc.
[EMAIL PROTECTED]
http://www.transgaming.com

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