Question about Reverse Mappings in FreeBSD.

[Alan Cox]

On Fri, Mar 18, 2011 at 7:30 PM, J L <dimitar9909 at gmail.com> wrote:

> I read an article about Reverse Mappings technique in memory management
> part. It improves a lot from Linux 2.4 to 2.6. I am wondering is FreeBSD
> also have this feature? Which source files should I go to find these? I
> want
> to do some study on this.
> Wish someone can enlighten me. Thank you.
>


Reverse mappings are implemented by the machine-dependent layer of the
virtual memory system, which is called the "pmap".  Look for files named
pmap.c in the source tree, such as sys/amd64/amd64/pmap.c.  In particular,
look for the code that manages pv entries.

Alan