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Wired speed question.

Discussion in 'General Discussion' started by Pmolan, Jul 23, 2007.

  1. Pmolan

    Pmolan LI Guru Member

    Wow I love this site, I just found it today. Here's a question that I've always wondered about. Say I can download a 100 meg file in like 30 seconds or so from a website from any computer on my network. (I don't know exactly how long). If I wated to transfer that same file from one computer to another on the network, it can take 5 minutes. This has been true from several routers that I have been through in the past. Why would this be slower on the internal network when it obviously uses the same router/wire to get there in the first place?
  2. t4thfavor

    t4thfavor Network Guru Member

    I would take a bet that the webserver is a much faster machine than the one's on your internal. And that it is able to serve data from the disk at a blinding speed. Where as when you are transferring internally you are only going to a basic desktop pc with one or two un-raided disks.
  3. bleagh

    bleagh Network Guru Member

    100 meg in 30 seconds? You must have a very fast internet connection for such speeds! You would need at least a 30 megabit connection to download 100 meg in 30 seconds.

    For the more common 7 megabit connection it would take over 2 minutes to download 100 meg.

    Even so, you SHOULD be able to transfer a 100 meg file from one computer to another on the same local network in well less than a minute. If you are NOT able to do this, then there is clearly something WRONG!

    For example, it takes me about 2 minutes 15 seconds to download a 100 meg file with my 7 megabit DSL, assuming I get max download from the sever (I often don't which means it takes even longer).

    If I transfer the same 100 meg file from my FASTER computer (10,000 RPM harddrive) to my SLOWER computer (7,500 RPM harddrive) over the local 100 Mbps connection (through my wrt54gs) it takes maybe 20 seconds. But transfering from my slower to my faster computer takes around 40 seconds.

    I have notice that if I try transfering a multi-directory structure with many (some large) files in each directory, that it can sometimes take much longer than it should. And it such cases it is usually much faster if I just transfer one directory at a time rather than trying to do all at once. (This seems to be more of a problem with my win98se computer than with my winXP computer though.)

    But any way you look at it, transfering large files accross a local network should be MUCH faster than downloading the same from the internet. If it is not, then there is something WRONG with your system!
  4. Pmolan

    Pmolan LI Guru Member

    Im not sure about the 100/30 sec. Its fast as hell though. But for the purpose of this question, if it takes 100/30 from the internet, it will take 5 min or so to transfer to another computer. Example PC1 dl 100/30 from the internet. PC2 dl 100/30 fom the internet. PC1 to PC2 5 minutes. Same wires, same router. I didnt know if there was an internal setting I could mess with, or a protocol missing.
  5. t4thfavor

    t4thfavor Network Guru Member

    SInce its not entirely clear to me, you aren't talking about wireless transfers, are you?
    If so that is your bottleneck.

    Wireless is half duplex, so it is automatically half as fast as advertised, add two wireless pc's transferring between each other and your at less than a quarter advertised speed.

    (not exact measurements, but you get the ides)
  6. silentaccord

    silentaccord Network Guru Member

    Even if it is a wireless-to-wireless transfer, it shouldn't be any slower than about 50% of the wan-to-wireless transfer speed. What protocol are you using to transfer the files between the 2 computers (HTTP, FTP, etc.) and how are you initiating the connection? If you're entering an address and it's not the lan ip address of the host machine (e.g., 192.168.x.x), try that and see if it makes a difference.
  7. bleagh

    bleagh Network Guru Member

    Personally I just use file sharing. But I cannot say what is best for other users.

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