What's with activity monitor and its inability to grasp percentages?

Discussion in 'MacBook Pro' started by lilcosco08, Jan 14, 2011.

  1. lilcosco08 macrumors 65816

    lilcosco08

    Joined:
    May 27, 2010
    Location:
    Dayton
    #1
    So currently iMovie is using 131% of my CPU.

    My Mac is really pushing it to the limit :D
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    If you have used MRoogle to search, you'd have found that this has been covered many times before.
     
  3. sammich macrumors 601

    sammich

    Joined:
    Sep 26, 2006
    Location:
    Sarcasmville.
    #3
    1 core = 100% max

    2 cores = 200% max

    iMac i7 have a max of 800%

    Top end Mac Pro has a max of 2400%.

    Enjoy.
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    Yeah, my 12 core Mac Pro goes up to 11999% when doing something in Facebook too, when in MySpace it goes up to 23456%.

    It has to do with you having a Mac with two or more cores and one core being symbolised as 100%, ergo 5 cores can be up to 500%, if the application takes advantage of it.

    And yes, MRoogle.
     
  5. lilcosco08 thread starter macrumors 65816

    lilcosco08

    Joined:
    May 27, 2010
    Location:
    Dayton
    #5
    It's..
    It's a joke...
     
  6. JamesGorman macrumors 65816

    JamesGorman

    Joined:
    Dec 31, 2008
    Location:
    Winnipeg
    #6
    Does hyper threading count? Would my macbook pro than have a 400% maximum?
     
  7. axu539 macrumors 6502a

    Joined:
    Dec 31, 2010
    #7
    Yep. You have 4 virtual cores to work with.
     
  8. mark28 macrumors 68000

    Joined:
    Jan 29, 2010
    #8
    I think Apple should change it. A 400% cpu usage doesn't make sense. If you got 4 cores and they are all working to the max, it should report 100%, not 400%.
     
  9. JamesGorman macrumors 65816

    JamesGorman

    Joined:
    Dec 31, 2008
    Location:
    Winnipeg
    #9
    Cool, I thought this anyway, but just wanted to confirm!!
    Thanks
     

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