Starcraft2 180% CPU usage?

Discussion in 'MacBook Pro' started by RealEyes, Aug 7, 2012.

  1. RealEyes macrumors regular

    Joined:
    Jun 23, 2012
    #1
    rMBP 2.6/16

    is using 180% CPU okay? o_O;

    Temps look fine, all below 200F.
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    That is more than okay, since you have 4 cores.
    And 93° C is still below the 105° C Tmax (maximum CPU temperature befor automatic shutdown).

    Playing a 3D game is CPU intensive, thus the CPU usage and the heat (CPU gets hot due to more power being used due to more cycles it has to run).
     
  3. geoffreak macrumors 68020

    geoffreak

    Joined:
    Feb 8, 2008
    #3
    100% is just one core's maximum. If you have 4 cores (or two with Hyper-Threading), you will have 400% maximum. If you have 8 cores (or four with Hyper-Threading), you will have 800% maximum.
     
  4. dusk007 macrumors 68040

    dusk007

    Joined:
    Dec 5, 2009
    #4
    Apple calculates load a bit odd.

    When windows says 20% or 100% they are talking normalized to the max load of the entire CPU.
    Apple's activitiy monitor normalizes to the max load of a single thread. Which can result in a load of 380% on a dual core chip with 2 threads.
     

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