64bit FreeBSD performance
obrien at freebsd.org
Tue Dec 6 12:01:21 PST 2005
On Mon, Dec 05, 2005 at 08:09:08PM +0100, O. Hartmann wrote:
> David O'Brien wrote:
> >Your statement is hard to parse - to figure out what you're really
> >saying. VMware 5.5 runs fine on AMD Athlon64 3700 (754-pin) systems if
> >you are running a 32-bit host and want to run 64-bit guests. If you want
> >to run a 64-bit guest you need a revision D or later Athlon64. 64-bit
> >754-pin Semprons qualify. It isn't an issue of the number of pins the
> >CPU has. You cannot run a 64-bit guest on a 939-pin rev.CG Athlon64.
> Just for my information: what is the difference between those 'older'
> socket 939-athlon64 and newer CPUs that they aren't capable of running a
> 64-bit guest system?
Opteron/Athlon64 rev.D added segment limits to long mode.
> Well, I'm just only familiar with the so called 'market-names' of the
> Athlon64 chip series, like 'Winchester' or 'Venice'.
Those are the core code names - which not only include architecture
changes, but metal layers and other fab things. I only care about the
architecture database revisions. I.E. only the things that software can
"see", vs. fab things the OC'ers care about.
-- David (obrien at FreeBSD.org)
More information about the freebsd-amd64