ZFS committed to the FreeBSD base.

[Kris Kennaway]

On Wed, May 23, 2007 at 05:32:31AM -0400, Kris Kennaway wrote:

> I would actually be interested to know how Solaris gets away with
> this.  It sounds like there must be less of a distinction between
> memory allocated to the kernel and to userland, and the ability for
> memory to flow between these two with some form of backpressure when
> userland wants memory that is currently gobbled by up solaris ZFS.
> 
> This kind of system probably makes good sense (although maybe there
> are trade-offs), but anyway it's not how FreeBSD does it.

After some further thought I guess the difference is just that on a
64-bit kernel you don't have KVA issues and can indeed map all of
physical RAM into the kernel for caching.

Kris