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Upload speed and times

3667 Views 40 Replies Latest reply: Nov 26, 2007 7:58 AM by jbwest2 RSS
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Ken Ronkowitz Calculating status...
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Nov 1, 2006 2:40 PM
I have uploaded several large video files into iTunes U lately and the time required has been extremely long on all efforts at different times of the day.

Using my university connection (100 Mbps though I'm sure I wasn't getting that upload speed)it took just now 25 minutes
to upload a 393Mb MPEG-4 file.

Has anyone else uploaded large files and experienced slow speeds?

I'm not sure if I'm getting throttled down by the college, Apple or both.
  • Ken Newquist Calculating status...
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    Nov 2, 2006 6:19 AM (in response to Ken Ronkowitz)
    Unfortunately we haven't uploaded anything nearly that big yet, so I can't comment on large file upload speeds. Most of ours have been in the 20-30 mb range.

    That said, we're going to start working with faculty soon, and I expect we'll see quite a few large files then, so I'll be able to comment more in a week or two.

    Ken
    PowerBook G4, Mac OS X (10.4.7)
  • Duncan Bernhardt Level 3 Level 3 (870 points)
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    Nov 6, 2006 8:54 AM (in response to Ken Ronkowitz)
    Hi Ken,

    The connection between Apple and your campus is the limiting factor in upload times. You are connected to your campus' network via a 100 Mbps link, but your campus' connection to Apple is much slower.

    25 minutes to upload a file of this size seems like a reasonable amount of time based on our testing. Its important to remember that upload time is often quite slower than download time for files of the same size.
    Mac OS X (10.4.6)
  • Duncan Bernhardt Level 3 Level 3 (870 points)
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    Nov 17, 2006 8:19 AM (in response to Ken Ronkowitz)
    There is a 500 megabyte file size limit on uploads.

    How big was your file? How long did the upload proceed before timing out?
    Mac OS X (10.4.6)
  • richwolf Level 3 Level 3 (725 points)
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    Nov 18, 2006 12:53 PM (in response to Ken Ronkowitz)
    Ken,

    Hmmm ... interesting question. I'm sure Apple has some kind of official answer ... but I've never noticed a timeout while logged into iTunes U using my "Administrator" credential. I "think" the lognest I've ever been logged into iTunes U (inactively) as an admin was something like an hour ... but usually I'm just in to setup a new course for someone at our site.


    MacBook Pro   Mac OS X (10.4.8)   I lied. I'm running Leopard
  • jmeredith Calculating status...
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    Dec 8, 2006 10:12 AM (in response to Duncan Bernhardt)
    I have tried several times unsuccessfully to upload a 271MB .mp4. After about 20-30 minutes it times out. I don't think I'ver ever gotten more than 50% of the file uploaded before the connection times out.

    Is there some way this can be adjusted on our site?

    Randy meredith
    Dir. Academic Technology
    Spring Arbor University
    Macbook, Mac OS X (10.4.7)
  • richwolf Level 3 Level 3 (725 points)
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    Dec 8, 2006 2:21 PM (in response to jmeredith)
    Our biggest file is 263.9 MB. It uploaded without a hitch. I know this is not very helpful to you guys ... sorry ... but I put it out as a data point.
    MacBook Pro, Mac OS X (10.4.8), I lied. I'm running Leopard
  • Duncan Bernhardt Level 3 Level 3 (870 points)
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    Dec 9, 2006 10:50 AM (in response to Ken Ronkowitz)
    For people having trouble uploading can you post the following information if you have it:

    ISP

    Connection type/speed (This is most applicable to home users as campus users will likely not know how the campus network is connected to the internet.)

    Results of the speed test at http://www.dslreports.com/stest.
    Mac OS X (10.4.6)
  • jmeredith Level 1 Level 1 (0 points)
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    Dec 13, 2006 7:37 AM (in response to Ken Ronkowitz)
    I continue to have problems uploading a 272Mb mp4 from Campus. We have multiple T1s, our sysadmin has tweaked bandwidth for me so I can upload a bit faster. The problem is, my upload NEVER succeeds - it times out every time. It seems to time out around the 30 minute mark.

    To compound the problem, the video I'm trying to upload is a presentation by our president.

    Any idea how I can avoid losing my hair (or worse)?
    Macbook, Mac OS X (10.4.8)
  • Duncan Bernhardt Level 3 Level 3 (870 points)
    Currently Being Moderated
    Dec 13, 2006 12:58 PM (in response to jmeredith)
    You can't upload a file greater than 500 megs to iTunes U, but there is not limit on the amount of time an upload can take.

    Are you able to upload smaller files okay?

    Can you upload other mp4 files okay?

    What is the exact error you get when this problem happens? Attaching a screen shot would be most helpful.
    Mac OS X (10.4.6)
  • haggerty Calculating status...
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    Dec 13, 2006 2:30 PM (in response to Ken Ronkowitz)
    I work in the same office as Ken and I also noticed that it took quite a while to upload large files with a PC. As a test I tried using my other computer, which is a Mac, at the same time. The Mac always uploads files much quicker than the PC (the difference is amazing).

    Does Apple throttle back PC users and give more bandwidth to Mac users?
    Mac Mini PowerMac, Mac OS X (10.4.4)
  • Duncan Bernhardt Level 3 Level 3 (870 points)
    Currently Being Moderated
    Dec 13, 2006 6:17 PM (in response to haggerty)
    Apple does not limit the bandwidth of PC users in anyway shape or form.

    Are you using Internet Explorer or Firefox on the PC? I'll bet you are using Internet Explorer. There are known issues with IE and uploading files. IE 6 is known to be very slow in uploading large files, IE 7 is supposed to fix this problem.

    Try Firefox on the PC, if that helps then it is the known IE 6 issue.
    Mac OS X (10.4.6)
  • jmeredith Level 1 Level 1 (0 points)
    Currently Being Moderated
    Dec 14, 2006 6:08 AM (in response to Duncan Bernhardt)
    Even though I'm using our campus connection, I ran the speed tests just to provide an additional data point.

    I ran the test (San Francisco route) 3 times, the mean of the 3 results are provided below:

    3894 / 1658 kbps
    475.8 / 67.5 KB/sec

    It seems this ought to plenty fast enough not have my session time out.
    Macbook, Mac OS X (10.4.7)
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