Confusing Storage Statistics

Discussion in 'MacBook Pro' started by ninjaslim, Jan 1, 2012.

  1. ninjaslim macrumors member

    Joined:
    Jul 27, 2010
    #1
    I have attached a screenshot of my storage statistics. What is this listed under audio as 18.45 EB? What is an EB? Where is any of this stored? I use iTunes Match for all of my audio.
     

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  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
  3. thundersteele macrumors 68030

    Joined:
    Oct 19, 2011
    Location:
    Switzerland
    #3
    That's a zero, or maybe a -1

    Apple uses unsigned long 64 bit numbers for a lot of stuff internally.

    2^64 = 18446744073709551616L = 18.46 EB

    I think integers start with 1,2,3 and so on. So a zero doesn't fit in properly, and neither do negative numbers. So what the OS apparently does is to take 2^64 as zero and then go down from there to get the negative numbers. I've seen this happen in a few places now in OSX.
     

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