Feature request: Caching checksums in a file

[Matt McCutchen]

On Sat, 2008-11-22 at 17:05 +0100, Rene Bartsch wrote:
> when using RSync for mirroring, the checksums of a file are calculated for each transfer. But that
> causes a lot of CPU/IO load on the server machine and degrades throughput even if there's plenty
> of network bandwidth. So I want to propose a pre-calculating feature for checksums.

I think Wayne is working on a feature along these lines.  Take a look at
the "checksum-*" maintained patches at:

http://rsync.samba.org/ftp/rsync/patches/

Matt