Difference between Process and Kernel Thread

1. Process:
Process is an activity of executing a program. Process is of two types – User process and System process. Process control block controls the operation of the process.

2. Kernel Thread:
Kernel thread is a type of thread in which threads of a process are managed at kernel level. Kernel threads are scheduled by operating system (kernel mode).



Difference between Process and Kernel Thread:

PROCESS KERNEL THREAD
Process is a program being executed. Kernel thread is the thread managed at kernel level.
It is high overhead. It is medium overhead.
There is no sharing between processes. Kernel threads share address space.
Process is scheduled by operating system using process table. Kernel thread is scheduled by operating system using thread table.
It is heavy weight activity. It is light weight as compared to process.
It can be suspended. It can not be suspended.
Suspension of a process does not affect other processes. Suspension of kernel thread leads to all the threads stop running.
Its types are – user process and system process. Its types are – kernel level single thread and kernel level multi thread.

Attention reader! Don’t stop learning now. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.