Pointers for understanding vfs/buffer/filesystem architecture

ALeine aleine at austrosearch.net
Sat Jul 30 15:24:16 GMT 2005

Eric Anderson wrote:
> I've very interested in learning about FreeBSD's implementation
> of  vfs/buffer cache/fs archicture.

You may want to download the following graphical overview of the
UFS/FFS filesystem that was made by Poul-Henning Kamp earlier
this year, it's very useful:


If you want to print it out you'll need 18 sheets of paper.

You may also want to use something like doxygen (devel/doxygen in the
ports tree) to generate source code graphs and make browsing through
source code easier. Another resource that you may find helpful is
Robert Watson's FXR site:


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