design and implementation ?

Raphael Marmier raphael at
Tue May 10 08:55:20 PDT 2005

justin at xxxxxxxxxxxxxxxxxx wrote:

I'd like to get an understanding of the inner architecture of
DragonFlyBSD (i'm a kernel newbie, sort of).
Is reading "Design and Implementation of FreeBSD system" worth it,
considering it is based on FBSD 5, and DFly derives from v 4 ?
Or should I go with the previous "Design and Implementation of 4.4" ?
Problem is to make relationships between classical, former orientations
and actual implementation of DFLy...
(Reading the source code without orientation seems daunting...)
Or any other pointers ?

Even FreeBSD-4 had diverged some from 4.4BSD, which the earlier edition of
the book is based on, so there will be some changes.
You may want to check at your local library system or university libraries
- there may be an edition of the "Design and Implementation..." book
there, and browsing it that way may answer your question for you.  It'll
certainly be cheaper!
You could always jump in the deep end, so to speak, and dive into the
DragonFly code, and see what you can puzzle out from the comments and code
there.  That's a hard road, though.
I suppose you may find this document helpfull:


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