kernel_task process disk usage is too high?!!

Discussion in 'macOS' started by thinhpham, Jan 19, 2017.

  1. thinhpham macrumors newbie

    Joined:
    Jul 27, 2014
    #1
    Hi all,

    I've recently realized that the kernel_task process (I don't know what it is) is having huge numbers in disk usage, over 10 gigs of bytes written!

    Screen Shot 2017-01-19 at 11.58.51 PM.png

    The question is: What is this? Is that bad? And how to fix?

    Thank you,
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    Totally normal and nothing is wrong. kernel_task is a core part of the OS that is sort of like the traffic police for many different processes. So apps that write to the disk do it through kernel_task.

    Here is mine from a moment ago.

    Screen Shot 2017-01-19 at 11.19.11 AM.png
     
  3. thinhpham thread starter macrumors newbie

    Joined:
    Jul 27, 2014
    #3
    So where does it write the data to? The startup disk or whatever disk drive is being used? I found this significant number while downloading video files from the internet but saved to an external drive.
     
  4. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #4
    Any disk writes get logged there, either internal or external.
     
  5. Fishrrman macrumors G4

    Joined:
    Feb 20, 2009
    #5
    OP:

    Do you use Spotify, by any chance?

    I recall reading that it can write many gb per day, for no particular reason at all.
     
  6. thesunwave, Apr 9, 2017
    Last edited: Apr 10, 2017

    thesunwave macrumors newbie

    thesunwave

    #6
    Hi, how do you think, it's ok with 5 days uptime. In my computer kernel_task can write up to 1tb per week. And yes, I use Spotify, but they were fixed the bug.

    Upd: I found out the reason. Lack of RAM. I have 8gb, but it is not enough for stable work. MAC OS use swap and write a lot of data to him.
     

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