from the same server using WinSCP and sftp on cygwin.
Sftp/cygwin almost maxed out the available bandwidth
of the narrowest section of the entire connection,
which is the upstream path of the ADSL circuit on
the server, which is 1Mbps.
Meanwhile WinSCP reports only 200-300Kbps on the same
This means if sftp took 1 hour to copy one file,
WinSCP would take 3-4 hours. That's a huge difference.
The server is openssh/cygwin.
What makes it run so slow?