Copying large files over lan
I'm copying a home made video from one computer to another over a 10/100 lan connecting. The file is 600mb but windows says its gonna take about 84 mins to copy it. Then i look at the network adapters in task manager they are only working at about 1%
Is there anyway to get windows to use the full speed of the net adapters to speed up file transfers ?
Any good suggestions would be appreciated .
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That's weird, 600mb wouldn't take 80 mins on our 10/100 LAN, it'd probably take about 10 minutes or something.
I don't think Windows lets your transfer at the full speed of the LAN purely to stop your network for becoming super slow.
I have never seen my LAN at 100%.
I'm not sure how task manager measures network throughput but I bet it's closer to the payload than the actual data that's sent.
Still, 1% usage is pretty poor.
Two questions:
1. Is there anything between the two computers, like a switch, hub, router, or are they linked directly by a single cable?
2. Are both NICs operating at 100Mbps in full-duplex mode.
edit: 600MB should take a little over a minute to transfer on an otherwise idle 100Mbps network, by my reckoning anyway.
Last edited by Steve; 20-11-2006 at 09:48 PM.
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Hi Steve,
A question from me, and I'm sure 'Thatblokeiknow' would also like to ask this question:
To use the full 100mbps line properly would you have to change the LAN settings on each PC from auto to 100mb full duplex?
Bet its AV/firewall related
Still, it could be a process hogging CPU time aswell amongst other things.
Sending files over the LAN does require a bit of CPU time as XP likes to digitally sign everything it sends
"In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."
Nope. Usually auto negoitiate will negotiate 100mb/full anyway.Originally Posted by Craig321
However I've seen a few systems that transfer individual files a lot faster on 100MB/half than on 100MB/full.
Dunno why - the 100MBit/full was faster when transferring 4 or more files at once.
"In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."
That's odd.
Full duplex allows communication both ways simultaneously, so with a good sliding window there can literally be a constant stream of data.
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Hmmmm, I really don't think I'd be able to do 600mb in just over 1 minute on my network. It's not painfully slow, but I don't think it's that quick, transfers never use 100% network for some reason.
Craig.
My network passes through a router and generaly transfers at around 80% 10mbs i have noticed in the past that the firewall takes it down to around 60% 7.5mbs
I had an issue the other day when a file was going through at 3% so i restarted and it went through as normal general rule of thumb if you dont know whats wrong restart
Exactily, hence why I didn't beleive the engineer that pojnted this out to me at first. That was untill i tried it out for myself on my own terms and saw what he said occur.That's odd.
Full duplex allows communication both ways simultaneously, so with a good sliding window there can literally be a constant stream of data.
This was on a Dell Dimension with a 1GHZ P3 transferring data do something a bit faster using Windows 2000 pro on both machines.
"In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."
Ahh the old "if in doubt, restart"My network passes through a router and generaly transfers at around 80% 10mbs i have noticed in the past that the firewall takes it down to around 60% 7.5mbs
I had an issue the other day when a file was going through at 3% so i restarted and it went through as normal general rule of thumb if you dont know whats wrong restart
BTW its a good troubleshooting proverb
"In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."
Couple of things to bear in mind :
Most networks running at whatever speed, arent going to be 100% efficient. You will lose speed due to router /cable quality , collisions etc.
That said, it should certainly be faster than it is for you.
Other things to consider - are you sure that the bottleneck is the network itself? Could it actually be the OS causing the problems? could your hard drives be having dificulties writing the data as quick as its coming in? Are there other processes that are hogging CPU / Memory?
I always find that windows sucks badly for copying stuff around - especially large files. Have you tried doing it through DOS / CmD prompt? Maybe that would prove to be quicker.
Good Luck
just out of interest what firewall are you using and after disabling it did your speeds increase ?
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windows firewall on?
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It was Sygate, I dare say that it probably was not directly responsable more down to it and other windows proceses beating down on my little 2.2 p4 coping with the file transfer
I dont have much call for a firewall now i am behind a router
i had a problem with sygate where it would hog 100% 100% of the time killing the pc. also try rebooting the router you would be surprised what it does. if in doubt reboot works for everything with some sort of cpu.
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