Slow File Transfer Over Network

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  1. Posts : 5
    Windows 7
    Thread Starter
       #11

    lol File transfer with vista is slower thn windows 7.
    A=Desktop xp
    B=Notebook 7
    C=Notebook vista
    A-B=1.5mb
    B-A=2mb
    A-C=1.3mb
    C-B=900kb o_O

    After i saw that all are slow i thought problem is wireless I installed xp on my notebook(drive d: ) to check if it from wireless or not and speed was about 5.5mb per second.
      My Computer


  2. Posts : 1,377
    Win7x64
       #12

    Darcyn said:
    lol File transfer with vista is slower thn windows 7.
    A=Desktop xp
    B=Notebook 7
    C=Notebook vista
    A-B=1.5mb
    B-A=2mb
    A-C=1.3mb
    C-B=900kb o_O

    After i saw that all are slow i thought problem is wireless I installed xp on my notebook(drive d: ) to check if it from wireless or not and speed was about 5.5mb per second.
    6.75MB/sec is the theoretical maximum, so 5.5 is a good outcome.

    Did you test those transfer speeds in [safe mode + net] in each case?
      My Computer


  3. Posts : 5
    Windows 7
    Thread Starter
       #13

    Yes same speeds under safe mode anyway i'll buy a external disc tomorrow i can copy files fast over. Using 2 os under 1 computer may cause harm? If it cause i ll delete xp.
      My Computer


  4. Posts : 1
    Windows 7 Professional 64 bit
       #14

    Win7 File Transfers slow: Disable Large Send Offload v2


    I found a good lead on another board ( Windows 7 Ultimate - Painfully slow file transfer on ethernet network (cables only) ). Since the problem had a lot of leads which didn't work, I thought I'd cross-post a solution that worked for me.

    Specifically, my problem was that file transfers FROM Win7 to XP were slow, measured by seeing network utilization in the Task Manager at about 1%. Transfers from XP to Win7 typically used 80-99% of the network bandwidth. These results were achieved whether the transfer was "push" or "pull".

    What worked for me: I went to Local Area Network properties, Configure, Advanced Tab, and disabled Large Send Offload v2. The advice to disable autotuning, RSS, set Speed & Duplex to a specific value, remove from homegroup, did nothing. Ultimately, the settings which worked on my Dell XPS 8100 Win7 Pro 64-bit workstation were as follows:

    ARP Offload - Enable
    Ethernet@WireSpeed -Enable
    Flow Control - Auto
    Interrupt Modulation - Enable
    IPv4 Checksum Offload - Rx & Tx Enabled
    Large Send Offload (IPv4) - Enable
    Large Send Offload v2 (IPv4) - Disable
    Large Send Offload v2 (IPv6) - Disable
    Network Address - Not present (radio button)
    NS Offload - Enable
    Priority & VLAN - Priority & VLAN Enabled
    Receive Side Scaling - Enable
    RSS Queues - RSS 4 Queues
    Speed & Duplex - Auto
    TCP & UDP Checksum Offload (IPv4) - Rx & Tx Enabled
    TCP & UDP Checksum Offload (IPv6) - Rx & Tx Enabled
    VLAN ID - 0
    Wake Up Capabilities - Both
    WOL Speed - Lowest Speed Advertised

    Hope this proves helpful to someone else.
      My Computer


  5. Posts : 1
    Windows 7 Pro x64
       #15

    Thank you for the tip jelion. Your suggestion helped a bit.

    To test this I transferred a 7.5GB mpg from my Win7 Pro x64 to an old Linkstation NAS shared folder. The process fluctuated between 5.3M/s, 6.7M/s and 8.0M/s, but mainly transferred at 8.0M/s. The process took a little over 18 minutes. Before applying your tip I would see 7M/s tapering off to slower speeds over time when transferring the same video. The latest transfer test is entirely acceptable performance for me, as it takes away the frustration of hours long processes or ones that failed altogether in the past.

    I think the real issue for slow or failed file transfers between Win7 to a NAS or an XP shared folder has more to do with packet size mismatches than anything else. I say this because I was having fits trying to map network drives. It turns out the root cause was the LAN adapters for these devices were not set to use a standard 15xx MTU.

    My LAN is gigabit. The LInkstation, the XP box and the Win7 box are all wired through a 1GB/s switch which is also my router. The Win7 box is using a gigabit capable motherboard ethernet connection, the XP machine is using a gigabit PCI NIC card, and the Linkstation allows 1GB/s as well.

    I could not even see the Linkstation or XP PC in my Win7 network until I made sure all devices were set to us a "standard" MTU of 15xx as opposed to disparate jumbo frame sizes that I had no way of making precisely the same value. For the PCs this meant disabling jumbo frames and for the NAS, choosing 15xx in the settings. I have the speed set at 1GB/s for all devices.

    Voila! The devices popped right up in the "Map Network Drive" browsing window and once created they open instantaneously with a double click.

    My suggestion to anyone having file transfer issues is to take a hard look at the frame size settings first.

    I just ran another transfer test. About 400 .m4a music files amounting to 2.2GB transferred from my XP PC to an iTunes folder on the Win7 PC in less than 2 minutes. This is at about 28M/s.
    Last edited by Alert5; 20 Feb 2011 at 16:21. Reason: Follow up test
      My Computer


 
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