New Macbook Pro SSD space used discrepancy?

Discussion in 'MacBook Pro' started by fizzwinkus, Jul 14, 2012.

  1. fizzwinkus macrumors 6502a

    Jan 27, 2008
    I just got my Macbook Pro with ssd, and noticed last night that the space free as reported by the finder and activity viewer are different:
    its as if everything i deleted is still counted in activity monitor. is this normal? a part of trim?


  2. jwksmith macrumors member

    Apr 27, 2008
    Just a thought, but did you remember to empty your trash ?
  3. Lindono macrumors member

    May 1, 2012
    The reason for this is, as I understand it, one of them (the Finder I believe) reports the space available, minus the "Time Machine Snapshot" stored on the disk, because in theory, Mac OS will make room by deleting some of the snapshot, as needed. Activity Monitor just gives you the facts.
  4. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    That is exactly what it is. If you go to this screen you will find the amount shown here under backups will equal the amount of the discrepancy.


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