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Re: [nslu2-linux] Re: Slug with USB-Hub

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  • Marcel Nijenhof
    ... I don t think so. ... USB 1.1 allowed a maximum transfer rate of 12Mbits/second. 12 Mbits/s = 1.5 MB/sec without overhead. With usb 1.1 the maxium speed is
    Message 1 of 3 , Nov 1, 2005
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      On Mon, 2005-10-31 at 23:45 +0000, chandersawh wrote:
      > hdparm -tT /dev/sda
      >
      > /dev/sda:
      > Timing cached reads: 168 MB in 2.03 seconds = 82.76 MB/sec
      > Timing buffered disk reads: 22 MB in 3.10 seconds = 7.10 MB/sec
      >
      > looks like your 'buffered' reads are at 1.1 speeds

      I don't think so.

      >From http://www.everythingusb.com/usb2/faq.htm:
      USB 1.1 allowed a maximum transfer rate of 12Mbits/second.

      12 Mbits/s = 1.5 MB/sec without overhead. With usb 1.1 the maxium
      speed is 1 MB/sec.

      Marceln
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