High Virtual Memory Size

Discussion in 'MacBook' started by ndassassin, Jun 16, 2009.

  1. ndassassin macrumors newbie

    Joined:
    Jun 1, 2009
    #1
    Hey guys, I have a unibody 13" Macbook and I just put in 4gb ram today. I noticed today that my VM size is 70.14GB. This doesn't seem normal to me... is it? If not how can I get it to where it needs to be?
     
  2. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #2
    Does it decrease when you reboot?

    I haven't restarted for a while, and my 2GB system has 31.16GB in VM at the moment...
     
  3. Nukemkb macrumors 6502a

    Nukemkb

    Joined:
    Mar 12, 2006
    Location:
    Columbia, SC
    #3
    From what I've read that other's have posted - I don't think its abnormal. A quick check of mine...

    Picture 1.png
     
  4. -tWv- macrumors 68000

    -tWv-

    Joined:
    May 11, 2009
    Location:
    Ohio
    #4
    This isn't abnormal. Mine is 66GB
     

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  5. egk69 macrumors 6502

    Joined:
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  6. richard.mac macrumors 603

    richard.mac

    Joined:
    Feb 2, 2007
    Location:
    51.50024, -0.12662
    #6
    i think its just a bug Apple havent addressed yet. if you add a new activity column by right clicking on the title bar, e.g. "# Ports", it decreases fair size; from 38 GB to 6 GB for me with 1 GB of RAM.
     
  7. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #7
    I'm not sure which one is the bug, lol

    When I add "ports" or "messages sent" it goes from 30GB to 5GB. When I remove them, it shoots right back up.
     
  8. pesc macrumors regular

    Joined:
    Jan 20, 2006
    #8
    The total virtual memory size is the sum of the virtual size of all processes. Note that (1) much virtual memory is shared between processes because they use the same libraries, frameworks, etc and (2) just because a memory object is mapped to the virtual adress space of a process, it doesn't have to be allocated in physical memory or even be in a page file.

    So that's what I understand the "total virtual memory size" is. A quite uninteresting number if you ask me.

    I can't explain why the number should change if you display "number of ports" though.
     

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