[Bug 1337] SCP performance twice as slow as RCP

[bugzilla-daemon at bugzilla.mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=1337





--- Comment #5 from Darren Tucker <dtucker at zip.com.au>  2007-07-14 11:20:56 ---
(In reply to comment #4)
[...]
> So compressing zeros (easy), and transfering much less data,
> takes twice as long?

What kind of system is that?  (CPU, memory, OS, anything else
relevant?)

I attempted to reproduce your result on a Linux box (1.8GHz celeron)
but got the opposite result which is more along the lines of what you'd
expect.  The first is a file of zeros, the second is from /dev/urandom:

$ scp -C /tmp/50m localhost:/dev/null
50m                                     100%   50MB   7.1MB/s   00:07
$ scp -C /tmp/50mr localhost:/dev/null
50mr                                    100%   50MB   2.0MB/s   00:25


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