macports ssh slower than osx ssh

[Rainer Müller]

On 2014-04-09 16:47, Brad Allison wrote:
> Why is macports ssh 4 seconds slower than osx built in ssh when using
> gss-api?
> 
> brad-allison-pro:~ brad.allison$ time /opt/local/bin/ssh -2 -v -l root
> m2inf-kerberostest-01 date > /tmp/kerbtest-ssh-macports.txt 2>&1
> 
> real    0m20.890s
> user    0m0.007s
> sys     0m0.008s
> 
> 
> brad-allison-pro:~ brad.allison$ time /usr/bin/ssh -2 -v -l root
> m2inf-kerberostest-01 date > /tmp/kerbtest-ssh-osx.txt 2>&1
> 
> real    0m15.894s
> user    0m0.011s
> sys     0m0.008s

It's really hard to tell where the additional time is spent without
doing full profiling of the processes.

Maybe the implementation in kerberos5 used by the openssh port is just
slower than Heimdal used by the system openssh?

Could also be that the MacPorts version makes more attempts to verify
different host keys (for example supporting ECDSA) and that adds
additional filesystem lookups and round trip times.

Rainer