kenton Posted August 19, 2004 Report Share Posted August 19, 2004 Computer 1 (Linux): Onboard RealTek 10/100 Network (SiS 700 series) Computer 2 (Windows): Onboard nForce MCP Network Adapter Hub: 3COM 10/100 Fast Ethernet Both computers are in 100Mbps/Full Duplex operation. I'm moving about 6GB of files from computer to computer right now barely getting over 1MB/s. I noticed it and restarted both computers to no avail. Still about 1.3MB/s. Quote Link to comment Share on other sites More sharing options...
tyme Posted August 19, 2004 Report Share Posted August 19, 2004 I transferred from my desktop to my laptop over scp and never broke 2MB/s, across a 100mb switch. so i'm sort of curious about this too...i know there's a reason for it. Quote Link to comment Share on other sites More sharing options...
kenton Posted August 19, 2004 Author Report Share Posted August 19, 2004 Heh, yeah. If you're using a SWITCH, and I'm using a HUB, and you barely hit 2MB, and I'm (now) at 1.5MB/ps, then yes -- there is a problem. Quote Link to comment Share on other sites More sharing options...
jlc Posted August 19, 2004 Report Share Posted August 19, 2004 try the following stuff for windows make sure it is set to 100 http://www.networklab.co.uk/cmodem/trouble.html for Linux/mdk try ethtool http://www.its.monash.edu.au/projects/edge...plex/linux.html urpmi ethtool if it isn't installed by default. Try forcing 100mb full duplex and see if that helps speed things up. Quote Link to comment Share on other sites More sharing options...
tyme Posted August 19, 2004 Report Share Posted August 19, 2004 Heh, yeah. If you're using a SWITCH, and I'm using a HUB, and you barely hit 2MB, and I'm (now) at 1.5MB/ps, then yes -- there is a problem. <{POST_SNAPBACK}> well, technically speaking, my switch should have a slightly faster transfer rate ;) less packet collision. but really, it averaged 1.4-1.7 even so, it -is- a damned fast transfer rate. I transfered 1.5gb in about 15-20 minutes. not bad ;) Quote Link to comment Share on other sites More sharing options...
jlc Posted August 19, 2004 Report Share Posted August 19, 2004 Another thing you could try is adding this to your modprobe.conf in /etc options e100 e100_speed_duplex=4 This is just an example because on the box I'm typeing from has an e100 nic in it. alias eth0 e100options e100 e100_speed_duplex=4 http://www.scyld.com/eepro100.html <-- you can see on the left hand side, more cards. Quote Link to comment Share on other sites More sharing options...
papaschtroumpf Posted August 19, 2004 Report Share Posted August 19, 2004 Is the transfer of files from windows to windows machine any faster? I always though that windows file transfers were "pacing" themselves. I didn;t measure the speed but I noticed that hte lights on my switch blink on/off and that seems to indicate the the transmission is not "continous". I don't know if this is a "feature" of the samba server. Quote Link to comment Share on other sites More sharing options...
feralertx Posted August 19, 2004 Report Share Posted August 19, 2004 Heh, yeah. If you're using a SWITCH, and I'm using a HUB, and you barely hit 2MB, and I'm (now) at 1.5MB/ps, then yes -- there is a problem. <{POST_SNAPBACK}> well, technically speaking, my switch should have a slightly faster transfer rate ;) less packet collision. but really, it averaged 1.4-1.7 even so, it -is- a damned fast transfer rate. I transfered 1.5gb in about 15-20 minutes. not bad ;) <{POST_SNAPBACK}> 1.5 GB are (1.5x1024=)1536MB --> 1536 MegaBytes Your NIC works at 100 Megabits per second (Mbps), and 1 byte = 8 bites, so 100/8 = 12.5, your NIC works at 12.5 MB/second, but thats just in theory. In reallity top ethernet speed is about 1/3 of the peak rate, so that makes a 100 Mbps NIC speed to be somewhere around (12.5 / 3 =) 4 MB/sec, and then you have overheat and other factors that do dicrease this speed. Mine works at about an average of 2.5 - 3 MB/sec, so i wouldnt consider yours' speed as a 'dammed fast transfer rate' but just as a lower-than-average though still normal transfer rate. Now we divide 1536 MB / 1.5 MB = 1024 seconds 1024 seconds / 60 = 17 minutes Those figures are more or less what you said you got. Quote Link to comment Share on other sites More sharing options...
tyme Posted August 19, 2004 Report Share Posted August 19, 2004 yeah, what you said :P i didn't know the exact bit/byte translation, can't seem to keep that in my head. when i said "damned fast transfer rate" i was comparing it to, say, downloading from a server on broadband ;) but there are, of course, many more factors in that equation. Quote Link to comment Share on other sites More sharing options...
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