[auton-users] an interesting observation about scp

Dan Pelleg dpelleg+ at cs.cmu.edu
Fri Oct 11 09:14:55 EDT 2002


Here's a way to make scp go faster. Maybe it's well-known, but I just found
out about it. It'll significantly help on big transfers (say, 10MB or more).

What you do, is simply use a less CPU-intensive encryption
method. Obviously this only helps if the CPU is the bottleneck, but that is
the case when you're copying on the CMU network and using sub-Ghz
processors.

A lightweight cipher to use is "blowfish". To use it you just type
"scp -c blowfish" wherever you would type "scp".

-- 

  Dan Pelleg



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