This is the mail archive of the
mailing list for the Cygwin project.
Re: sshd and scp/sftp: slow throughput on windows machines
- From: "Max Stein" <Grizzly99 at gmx dot de>
- To: <cygwin at cygwin dot com>
- Date: Sat, 18 Mar 2006 22:52:00 +0100
- Subject: Re: sshd and scp/sftp: slow throughput on windows machines
- References: <20060318210347.8FB7A2680@dot.warande.net>
1. Is it possible to increase the bandwith by having the client aggregate
multiple sessions through a single pipe?
Could you please give me some advice how this can be achieved? I am not an
SSH guru yet.
2. It would seem that PPTP connections can be much faster. E.g. a FreeBSD
MPD running on a 400 Mhz Pentium II can sustain a 50 Mbit/s datastream at
CPU usage of 25%.
W2k and XP have easy to configure PPTP clients.
(See also W2003 RAS.)
Why should a point to point tunnel improve the performance? Using Linux on
the client and server machines I achieved a throughput of 10.8 MB/s whereas
the theoretical maximum on a 100 MBit/s ethernet network would be 12.5 MB/s.
There must be another way. Why is the Linux implementation of SSH able to
provide a much better throughput for scp/sftp
than cygwin's implementation running on the same hardware? It is not a
problem of the Windows operating system because usual FTP tranfer yields
simalar fast throughput of 10-11 MB/s like SSH running on Linux.
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html