Woeful NIC transfer speeds.

[James McDonald]

I have a problem with my network transfer speeds outgoing on my linux
box

This is the transfer speed from a laptop to my linux box.

ttcp -r -s -f m
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 192.168.2.7
ttcp-r: 16777216 bytes in 14.92 real seconds = 8.58 Mbit/sec +++
ttcp-r: 11727 I/O calls, msec/call = 1.30, calls/sec = 785.91
ttcp-r: 0.0user 0.2sys 0:14real 1% 0i+0d 0maxrss 0+2pf 0+0csw

This is the transfer from the linux box to a laptop

ttcpw -r -s -f m
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 192.168.2.6
ttcp-r: 1022872 bytes in 161.49 seconds = 0.05 Mbit/sec +++
ttcp-r: 310 I/O calls, msec/call = 533.44, calls/sec = 1.92
ttcp-r:

note the transfer rate 8.58 Mbit/sec +++ for the laptop --> linux box
note the transfer rate 0.05 Mbit/sec +++ for the linux box --> laptop

Now for the above tests I was using the embedded via-rhine lan adaptor on
an ASrock motherboard this is a 2 month old motherboard using 512MB RAM
and an Athlon 1GHz chip.

Changing to a 8139too PCI card has given me 1.5MB/s both ways.

Can anyone tell me what sort transfer speeds that I should be getting. I
would like to change out all my NIC's so that i get somewhere near the
advertised 100MB/s speeds....

Cheers
James
-- 
James McDonald
(Would you like fries with that MCSE?)

Singleton Australia

61+ (0)2 65712401
61+ 0428 320 219

17:35:00 up 2 days, 16:19, 6 users, load average: 0.06, 0.13, 0.09 Linux
2.4.22 #1 Mon Sep 1 20:03:11 EST 2003 athlon i386 GNU/Linux