Can someone explain this in Activity Monitor?

Discussion in 'macOS' started by wwwluckyro, Nov 25, 2007.

  1. wwwluckyro macrumors member

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    #1
    Even after a fresh reboot, I get this huge virtual memory usage in Activity Monitor.

    I mean, 41 GB of virtual memory? wtf..

    I'm running Mac OS X Leopard 10.5.1 on a Intel Mac mini with 1GB RAM.

    So yeah, can someone please explain this strange behavior? Can this be something really bad? Any ideas on how to fix?

    Thank you :)

    Edit: I added the attachment. I don't know why it didn't show up the first time.
     

    Attached Files:

  2. rendezvouscp macrumors 68000

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  3. wwwluckyro thread starter macrumors member

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    #3
    What do you mean? I just turned on the computer then I checked Activity Monitor.
     
  4. rendezvouscp macrumors 68000

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    #4
    That's quirky. I can replicate it on my system too (19 processes, 39.16GB of virtual memory right now). I don't know why it's reporting such a high number if the listed processes don't consume that much virtual memory.
    -Chasen
     
  5. wwwluckyro thread starter macrumors member

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  6. koobcamuk macrumors 68040

    koobcamuk

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    #6
    I have about 11GB VM and I wondered why it is so high for almost every app?!
     
  7. mad jew Moderator emeritus

    mad jew

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    #7
    I've just noticed I'm getting the same issue on my new MacBook. 37GB of Virtual Memory immediately after a restart is bizarre. Any word on this?
     
  8. wwwluckyro thread starter macrumors member

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    #8
    Still same problem after that long.. I found no solution or explanation for this. The computer doesn't appear slow, it just doesn't feel right. Can anyone explain this? :confused:
     
  9. xUKHCx Administrator emeritus

    xUKHCx

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    #9
    Been covered a few times.

    At this point in time my VM is 50GB and it is constantly around there whenever I look
     
  10. richard.mac macrumors 603

    richard.mac

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    #10
    ok im under the impression that virtual memory is an amount set by a process and that it doesnt particularly use all of that memory allocation. the amount of memory that should be monitored is the real memory. ive been told by other people on this forum (cant remember exact post) to ignore virtual memory usage.

    http://guides.macrumors.com/Virtual_memory

    the virtual memory size in Leopard is definitely a lot bigger than Tiger but my real memory usage only looks to to be a little more than Tiger.

    my virtual memory ATM is 43.72 GB while i have 867 MB or active/wired memory out of 1.5 GB.
     
  11. wwwluckyro thread starter macrumors member

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    #12
    Thanks, xUKHCx

    I think I'm gonna run YASU and probably a defragmentation tool to see if it helps. I know YASU helps .. once it cleared a few gigs :eek: shocking how files are forgotten like that.
     
  12. DoFoT9 macrumors P6

    DoFoT9

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    #13
    12gb Vm for me running leopard with 4days UT...

    it depends on how much hard drive space you have, i only have around 23gb free.. not sure about the rest of yous
     
  13. saltyzoo macrumors 65816

    saltyzoo

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    #14
    There's nothing to "help". There's nothing wrong with your applications using virtual memory.
     
  14. richard.mac macrumors 603

    richard.mac

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    #15
    i have 22 GB free
     
  15. wwwluckyro thread starter macrumors member

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    #16
    I meant to say if there will be any difference :)
     
  16. eXan macrumors 601

    eXan

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    #17
    Relax, guys! I have 41 GBs of VM now and only 1.3 GB free on my HD (1 GB RAM) on my MacBook and its working perfectly fine :p
     
  17. Cromulent macrumors 603

    Cromulent

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    #18
    Okay to clear a few things up.

    Virtual memory is the theoretical maximum amount of memory that each application could use if it needed it. It does not mean that the application is actually using that much. It is just the application has told the OS that it may need that amount and that the OS should be prepared to allocate some or all of it if the application needs it in the future.

    Virtual memory does not tell you anything about the amount of RAM or HDD space that is being used on your computer and should basically be ignored. The important value is real memory usage.
     
  18. wwwluckyro thread starter macrumors member

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    #19
    Thanks for clearing that up, Cromulent.

    I also like your signature :)
     
  19. eXan macrumors 601

    eXan

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    #20
    The quote or Mac Pro specs? :D
     
  20. wwwluckyro thread starter macrumors member

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  21. mad jew Moderator emeritus

    mad jew

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    #22
    Okay, so it's a bug in Activity Monitor. Add another column (any one will do) and the Virtual Memory goes back to being a more realistic figure (for me at least).
     
  22. eXan macrumors 601

    eXan

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    #23
    Doesn't work for me...
     
  23. saltyzoo macrumors 65816

    saltyzoo

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    #24
    LOL Have you guys ever heard of snipe hunting?
     
  24. DoFoT9 macrumors P6

    DoFoT9

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    #25
    nope never...
    wat is it?
     

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