BrowserUk,

1. What happens if you run your client on the server using the loopback address?

This is how I tested previously, and the performance was excellent. I'm using the Linux 'System Monitor' on both machines to see the speed of the network transfers. That's how I could see it pegged at 10Mbps. The cores on the server machine never went above 3%, and the cores on client machine never went above 5%.

2. What throughput do you see from using wget between the two machines?

This is how I first discovered the difference. Both wget and ftp could get near 97% of the wire speed with the 'System Monitor'. wget actually showed performance greater than 100%, but that's probably a rounding error.

Both machines are new, and I originally installed 64bit Debian Linux 7.x. But the GNOME and KDE desktops were both broken. So I went back to 6.10, but already there are 374 patch updates in past month. Bottom line, this just may be a quick of the OS at this time. I'm using 32bit Perl because none of the CPAN modules I need compile using the 64bit gcc, but that's another issue I'll look into once I get these servers in production.

Thanks for the help.

Regards...Ed