kernel_task process disk usage is too high?!!

thinhpham

macrumors newbie
Original poster
Jul 27, 2014
29
4
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,
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,119
8,799
California
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
 

thinhpham

macrumors newbie
Original poster
Jul 27, 2014
29
4
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.

View attachment 684470
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.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
29,119
8,799
California
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.
Any disk writes get logged there, either internal or external.
 

Fishrrman

macrumors P6
Feb 20, 2009
17,152
5,515
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.
 
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.
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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lauramc

macrumors newbie
May 22, 2018
1
0
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!

View attachment 684460

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

Thank you,
[doublepost=1527003674][/doublepost]I tried all the things for months to fix the issue. The solution that finally worked for me was clearing the system/app cache. I moved all the files/folders to another folder and rebooted.
https://macpaw.com/how-to/clear-cache-on-mac