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I ran top in kali linux 2018.1 and was unable to figure out a few things.

What does I stands for in the process status coloumn. I know about R,S,D,K,T and Z but don't have any idea about I.

Also while monitoring the with top it came to my notice that total task count is way more than sleeping+running taks count. Souldn't it be total=running+sleeping.


  • 1
    I probably stands for "idle". The top manual should tell you this.
    – Kusalananda
    Apr 13, 2018 at 14:37
  • I have gone through the man page but 'I' was not there Apr 13, 2018 at 14:42
  • I'm guessing, but you'll probably find that the number of idle tasks is the total number of tasks minus the number of sleeping tasks (i.e. 63).
    – Kusalananda
    Apr 13, 2018 at 14:59

1 Answer 1


I stands for “idle”.

Regarding the number of tasks, top shows the total number of tasks, and the numbers of running, sleeping, stopped, and zombie tasks. This ignores uninterruptible tasks and idle tasks, which should account for the difference. You can see the detailed counts by state with the following command:

ps -e -o state | sort | uniq -c

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