Del Optiplex w/ 1GB eth card , win7
mini-itx system, jetway nf98, intel i3,1 GB onboard eth card, crux w/ 220.127.116.11 custom
The network: cat 5e or 6 all around. systems are less than a foot from each other. longest cable is 6 feet. have tried variations of router only, router and switch, switch, or direct connect (no router, or switch) (switch & router are gig too btw)
i mount the crux system on the windows system using samba
i mount the windows share on the crux system using 'mount -t cifs'
NOTE: variations of only one mount at a time, both mounts at a time, prob anything you can think of
Transfer 1: while using the win7 system, i start>run>\192.168.x.xxx\share and up pops an explorer box displaying the contents of my internal drive on the crux system. i then drag a 10g file from the share to the desktop of the win7 system. 10g file was made 'dd if=/dev/sda of=/a/10g.dd bs=1M count=10240' THIS results in a transfer at speeds: 55mb/s (lowest) to 105mb/s (highest) and avgerages about 75mb/s. [these results are above goal]
Transfer 2: while using the crux system, i mount the win7 share ('mount -t cifs-o //192..../share /a'), and ls -l /a displays contents of win7 drive's share. i then time a copy of a 10g file from the share to the internal drive of the crux system. THIS results in transfer speeds: 5m23s so ~ 31 mb/s
why are the results so different?
the highest i can set mtu on crux w/ this card is 4000, but that seems to have affect of zero.
i also try dd, using bigger block sizes, which gives little improvement
EDIT: It occurred to me that it might be the windows7 copy is faster/better. SO, from the windows machine, in cygwin, i executed 'time cp //192.../share/10g.dd /cygdrive/c/../Desktop Resulted in 2m51s ~ 59mb/s