[maemo-users] [maemo-users] Unison and large transfers

From: Mike Lococo mpl22 at cornell.edu
Date: Wed Dec 13 08:07:54 EET 2006

Is anyone else using unison to sync directories of several hundred 
megabytes?  In addition to using it for backup, unison is my preferred 
method of transferring files to and from the 770.  However, when I move 
a large volume of data (for example a 300MB audio book from 
librivox.org, or a recompressed movie from archive.org) I find that it 
often fails or behaves erratically.  Transfer speeds fluctuate wildly, 
the device gui often becomes unresponsive, and occasional reboots occur.

The reliability of the transfer can be improved by throttling the speed 
using SSH.  By switching to 3DES encryption and turning on compression, 
network speed is cpu throttled at around 175KB/sec.  The peak throughput 
is reduced, but the erratic slowdowns disappear and the device appears 
much more stable during the transfer.

Is anyone else experiencing similar behavior?


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