ZFS committed to the FreeBSD base.
kris at obsecurity.org
Wed May 23 10:06:32 UTC 2007
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.
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