Is it possible to see memory over 3GB on 32-bit FreeBSD?
Erik Trulsson
ertr1013 at student.uu.se
Wed Feb 17 20:23:38 UTC 2010
On Wed, Feb 17, 2010 at 03:02:17PM -0500, Bill Moran wrote:
> In response to Yuri <yuri at rawbw.com>:
>
> > I know that 32-bot Linux can see something like 3.6GB.
> > Is this possible on FreeBSD?
> >
> > I see this message in system log:
> > real memory = 6442450944 (6144 MB)
> > avail memory = 3123482624 (2978 MB)
>
> Most systems usually see about 3.5G ... don't know why FreeBSD would see
> less than that.
It very much depends on what hardware you have in the system. Just
about every expansion card or I/O device will reserve some of the
address space for its own use. Some devices will need a lot of space -
a graphics card with 256MB of RAM on it will use (at least) 256MB of
the address space for example.
>
> amd64 is the way to go. If you _must_ stick with i386, you can try PAE
> in your kernel, but I don't know if that's even supported any more.
>
> --
> Bill Moran
> http://www.potentialtech.com
> http://people.collaborativefusion.com/~wmoran/
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Erik Trulsson
ertr1013 at student.uu.se
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