Why does my mac use soo much ram?

Discussion in 'Mac Basics and Help' started by Micjose, Apr 17, 2011.

  1. Micjose macrumors member

    Joined:
    Sep 4, 2009
    Location:
    Portland, OR
    #1
    Ok i have an early 2009 imac cd2 2.66ghz 4gb ram. Each time i look at my activity monitor it always shows around 150-350mb ram free while i have Mail, Itunes, and Safari open. Why? its not like im using any intense apps
     
  2. applefan289 macrumors 68000

    Joined:
    Aug 20, 2010
    Location:
    USA
    #2
    Same here, I have a 27" late '09 core 2 duo iMac, and last time I checked the activity monitor, it was using a ton just when I had Safari open...I don't know why that's the case...
     
  3. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #3
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)

    Were you a windows user before osx??
     
  4. plinden macrumors 68040

    plinden

    Joined:
    Apr 8, 2004
    #4
    Are you looking at only free (the green) or combining free and inactive?

    Inactive is also free, it's just still allocated to applications that used it in case you want to restart them, but will be allocated to newly started applications if free goes to zero.

    That's why eg. Word is faster to open on subsequent launches than the first time. The second time, the RAM is already allocated. Eventually, that RAM will be used for other applications so the OS will have allocate RAM to it again and launch time will increase.

    Remember, unused RAM is wasted RAM.
     
  5. Micjose thread starter macrumors member

    Joined:
    Sep 4, 2009
    Location:
    Portland, OR
    #5
    Yes i was..
    Oh ok i didn't know. I was just looking at the green. Inactive shows 1gb. Isn't that still pretty low?
     
  6. plinden macrumors 68040

    plinden

    Joined:
    Apr 8, 2004
    #6
    Not really. What's your Page Ins/Page outs?
     
  7. Micjose thread starter macrumors member

    Joined:
    Sep 4, 2009
    Location:
    Portland, OR
    #7
    Page ins: 3.69gb
    Page outs: 440mb

    whats this mean?
     
  8. plinden macrumors 68040

    plinden

    Joined:
    Apr 8, 2004
    #8
    Page outs are when the OS needs to write RAM contents to disk when RAM usage is getting too high. If the Page In/out ratio is high (like yours is) your memory usage is ok.

    OS X memory management isn't perfect, but it usually gets a good balance between usage and performance.

    If you're not seeing any slowdowns and your page outs are low, you shouldn't worry about it.
     
  9. Dave Felix macrumors 6502a

    Dave Felix

    Joined:
    Apr 9, 2011
    Location:
    Scranton, Pennsylvania
    #9
    speaking of it.. is it okay then to have zero page out??
     

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