DragonFly users List (threaded) for 2005-04
amd64 Re: New Release
On Thu, Apr 14, 2005 at 08:52:10AM -0700, Danial Thom wrote:
>> As a stupid user I wonder what it takes
>> generally to support the AMD 64
>> bit extension, what are the typical issues in
>> supporting both 32 and 64
>> bit code? Links would be very welcome too :-)
>A better question is what does it take to do it
>well, or whether its worthwhile. In FreeBSD, the
>amd64 is so clunky its unusable on a server, IMO.
>I shiver at the thought of trying linux, or
>windows, but I am curious. Is there a way with
>GCC 3+ to utilize the extra registers without
>running in full-blown 64bit mode?
Linux on amd64 (3400+/400) is very good. Takes about
2 seconds (casual observation) to go from 1000Mhz to
2200Mhz (in 4 steps), when a load shows up and vice
versa. Don't know the numbers, but hot air comes
out when it's running and it's *very* cool at the
slow speed. Also the 60Mb/sec nvidia sata is sweet.
(I've not been able to resolve mplayer video, vlc
audio, and (analog) audio recording though, I think
that's all related to the arch, because the chipsets
are 'supported'.) Don't know about using gcc 3+
for 'amd64' registers, interesting idea, probably
happens, eg I configure powerstep in the kernel but
I think I run 32 bit binaries too, I think.
You need a new MS OS to use the processor features,
including powerstep, (assuming it actually works in
windows), so it runs hot in dfly and w2000.
George Georgalis, systems architect, administrator Linux BSD IXOYE
http://galis.org/george/ cell:646-331-2027 mailto:george@xxxxxxxxx