Re: reading ultralinux's faq
On Fri, Nov 14, 2003 at 08:45:18PM +0000, Martin wrote:
> > I've read that linux for sparc64 has got a 32 bit userland.
> >
> > Why? What's wrong with 64 bit?
> Nothing is wrong with it par-say BUT in most cases it is unnecessary.
> Whne in 64-bit mode you use a lot more memory to run the same program -
> thus the current strategy - 64bit where you actually need 64bit
> arithmetic and larger address spaces; 32 everywhere else.
64-bit in most cases is slower. Unless you need the memory mapping, or
other various 64-bit things (like netfilter tools would be nice, to
bypass the 64/32 ioctl translations).
> Or at least that's how I understand it. Also if I am correct Debian
> stable has recently got all of the tools to build / run 64bit binaries;
> think the gcc flags are -m32 and -m64 respectively. If you want a fully
> 64bit system then source debs might eb the way to go.
Debian stable does not have that. It's Debian unstable that is currently
ramping up 64-bit support. Also, you don't want a fully 64-bit system.
--
Debian - http://www.debian.org/
Linux 1394 - http://www.linux1394.org/
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