[lug] NSLU2 as backup device

Lee Woodworth blug-mail at duboulder.com
Thu Jun 15 12:03:35 MDT 2006


bgiles at coyotesong.com wrote:
>> bgiles at coyotesong.com wrote:
>> [...]
>>> The next most likely culprit is probably computing the hashes... unless
>>> that's cached somewhere.
>> Yes, on a fast network rsync can be relatively slow because hashing
>> makes it CPU bound.  You can turn that off and transfer entire files.
> 
> It's on a 100MB wired network but only 133MHz and 32M of memory.
How many files? rsync makes a list of all the files it is going
to transfer in memory. With only 32M you may be swapping.

> 
> Hmmm, even an idle system (running 'top', admittedly) has a load average
> around 2.5.   Ah...., it's running 'updatedb' in the background.  That's
> entirely local and should have finished hours ago....
> 
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