rsync speed

[Karl.Rossing at Federated.CA]

Hi,

I poked around the website and did some digging in the list archives but 
thought i'd better pose my question here.

I'm using rsync to synchronize two directories on a Solaris 8 e450 server. 
rsync copies about 22GB per night. It seems to take 50 minutes for the 
copy to complete. which seems a little bit slow.

I'm currently running
# /opt/bin/rsync -v
rsync version 2.3.1 Copyright Andrew Tridgell and Paul Mackerras

If i upgrade to 2.5.6 can i expect to see a speed increase.

Thanks

Karl