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File Copying with Windows...

By rahammers ·
My question is in short "What should the expected copy rate (in Mbps) be with standard P.C. equipment and an up to date Windows OS?" I'm not looking for a technical formula, rather just a general "rule of thumb" transfer rate for "general" equipment.

LAN topology of 100/full duplex. Machines are everyday desktops.

Second part...

How much would a clean but latent network segment have on the transfer? Example...Transfer 1 -100/full network, no errors and ~ 1 ms round trip. Transfer 2 - 100/full network, no errors and ~ 29 ms round trip.

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by uppulurivasu In reply to File Copying with Windows ...

Hi,
generally in a good working Windows Network of 100Mbps a copy of 650 MB file takes nearly 20 min.
If you have slow copy in your network check for if you have a pretty old anti virus and if so the older generation of anti virus and not so intelligent enough so they scan the complete file when it is written on to the HDD.
Its only a suggestion
Regards,
Srinivas

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by rahammers In reply to

Thank you,

Your numbers closely match what I am getting on my network. I also believe that software/os and disk speed is the greatest limiting factor. Not many errors on my network yet rarely approach high transfer rates.

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by Koks In reply to File Copying with Windows ...

Hi rahammers!
In our lan network, I get approximately 9000-10000 kbytes/s transfer speed between lan stations. But note that this is a small office lan and most of the time there is no much traffic going on network. Lan is used for internet connection sharing and simple file sharing. It is a 100Mbps/full duplex lan.

Hope this helps.

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by rahammers In reply to

u say you're sustaining a copy rate of 10000 kilobytes per second or roughly = to 74 megabits per second. Did you really mean this or should it have been Megabits per second? I have what I believe to be a fairly clean network and never get close to that. I have always assumed it was due to slow file access and serving with the machines. I am fairly new to tech republic, I believe you can send me a note on this using my user id...so if you have time I would be interested in continuing this discussion.

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by LiamE In reply to File Copying with Windows ...

First off the 2nd part - a 29ms latency will do little to the copy speed of a big file but will slow things down a bit if you are copying lots of little files.

Now the first part. A 100Mbps network doing nothing else will be able to sustain a transfer rate of about 7-8 MB/sec when copying large files, less when copying lots of small files.

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by rahammers In reply to

I like your answer (your the only one that wayed in on the 2nd part), however you say you're sustaining a copy rate of 7-8 Megabytes per second or roughly = to 60 megabits per second. Did you really mean this or should it have been Megabits per second? I have what I believe to be a fairly clean network and never get close to that. I have always assumed it was due to slow file access and serving with the machines. I am fairly new to tech republic, I believe you can send me a note on this using my user id...so if you have time I would be interested in continuing this discussion.

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by rahammers In reply to File Copying with Windows ...

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