Speeding up USB transfers.


  1. Darkfalz
    Posts : 8
    Windows 7 Professional x64
       New #1

    Speeding up USB transfers.


    Hotfix

    Instructions

    Works for me and doesn't require installation of any USB 3.0 "boost" software (also works for USB 2.0, although YMMV).
      My Computer
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  3. Darkfalz
    Posts : 8
    Windows 7 Professional x64
    Thread Starter
       New #2

    Benches

    USB 2.0 Controller/USB 2.0 HDD
    Size Read Write
    64k 34.6 26.6
    128k 39.4 28.1
    256k 41.3 29.2
    512k 42.8 30.0
    1024k 43.2 30.2
    2048k 43.2 30.3

    USB 3.0 Controller/USB 2.0 HDD
    Size Read Write
    64k 39.4 34.8
    128k 43.4 37.1
    256k 45.5 38.8
    512k 46.4 39.5
    1024k 47.0 39.7
    2048k 46.8 39.7

    USB 3.0 Controller/USB 3.0 HDD
    Size Read Write
    64k 202.3 208.2
    128k 218.4 215.9
    256k 218.4 216.3
    512k 219.2 216.9
    1024k 218.9 217.4
    2048k 220.4 215.9

    Diminishing returns above 512k, at least for HDDs. Difference when transferring files was more pronounced than with these CrystalDiskMark benches, even 128k makes a huge difference. 2MB caused problems with my USB 2.0 drive (just stopped randomly during file transfer) but it's perfect on 512k, suspect the controller just wasn't designed for such large transfers. No SDD to test sorry.
      My Computer
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