Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I want to know about kernel processes, like [migration], [kswapd], etc. Where are kernel processes like these documented?

share|improve this question
I don't know if there is such a thing. They're used fairly extensively inside the kernel, there are a lot of different ones. Some are even, for example, specific to a single driver. Some documentation is scattered across the kernel documentation tree. Google can often help. – derobert Aug 22 '12 at 13:35
Have you gone through Kernel_source_code/Documentation ? – SHW Aug 30 '12 at 14:16

I really doubt that there is a single place where you can find all the details. Best way would be to browse the kernel source code along with online help and

Professional Linux Kernel Architecture (link to Amazon) by Wolfgang Mauerer provides information about a few daemons:

  1. kswapd(Chap. 18)
  2. softirq (Chap 14)
  3. migration (Chap 2)...

Understanding the Virtual Memory Manager (free) by Gorman also provides in-depth details about kswapd.

share|improve this answer

The only book I found after a quick search is "Linux" from Michael Koffler. But from what I found on Google Books is does not explain this in depth (just name and what the daemon is for).

share|improve this answer

There is a book called Linux Kernel Development by Robert Love. He is a linux expert and works with google, I've found the pdf book available free for download via google servers. It has some very good information about linux kernel, will be helpful to you.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.