Kernel & Root

Discussion in 'Mac Pro' started by Reality4711, Sep 25, 2016.

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  1. Reality4711 macrumors 6502

    Reality4711

    Joined:
    Aug 8, 2009
    Location:
    scotland
    #1
    What is 'kernel_task' in activity monitor?
    Why does it appear many times sometimes and hardly ever others?

    Regards Sharkey
     
  2. !!! macrumors 6502

    Joined:
    Aug 5, 2013
    #2
    kernel_task is your operating system. It's the first process that launches, and it handles all the low level stuff, memory management, CPU management, hardware accesss, etc.
     
  3. frou macrumors regular

    frou

    Joined:
    Mar 14, 2009
    #3
    Strictly speaking, I think that would be `launchd` ... which is macOS's "init process" in conventional Unix speak.

    Unlike all the other processes shown in Activity Monitor, I don't think `kernel_task` is a real process. Apple just chose to present it as a pseudo-process in the CPU tab so they could reuse that existing UI for an easy way to show some kernel statistics.

    Nothing to worry about. There shouldn't be more than one instance of it, though!
     
  4. Reality4711 thread starter macrumors 6502

    Reality4711

    Joined:
    Aug 8, 2009
    Location:
    scotland
  5. !!! macrumors 6502

    Joined:
    Aug 5, 2013
    #5
    The EFI Firmware starts the kernel, then the kernel starts launchd.
     
  6. frou macrumors regular

    frou

    Joined:
    Mar 14, 2009
    #6
    The power cable is plugged into the wall.
     

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