On Tue, Aug 20, 2002 at 04:31:06PM +0200, Franz Georg K?hler wrote: > On Tue, Aug 20, 2002 at 10:11:46AM -0400, Ben Collins <[EMAIL PROTECTED]> > wrote: > > On Tue, Aug 20, 2002 at 02:28:21AM -0400, Scott Robert Ladd wrote: > >> I am a tad confused here, so bear with me... > >> > >> Okay: I have an Ultra 10, on which I've installed Debian 3.0r0. As I > >> understand it, the kernel operates in 64-bit mode, while any programs I > >> write and run operate in 32-bit mode. Is that correct? > >> > >> Is there anyway to change user space such that it is 64-bit? > >> > >> This came up when I built gcc 3.2; the configure script couldn't figure out > >> my installation. As it is explained to me by someone in the gcc mailing > >> list, what I managed to build was a 32-bit version of the compilers, given > >> that my user space is 32-bit. > >> > >> Why isn't user space 64-bit by default? Is it that many GNU/Linux programs > >> aren't compatible with 64-bit? > > > > You don't want 64bit userspace is very very slow compared to 32bit. The > > only reason you would want 64bit binaries is if a single program needs > > to access > 4gigs of memory (note, this has nothing to do with just > > having > 4gigs of memory). > > What is solaris' behaviour on this?
Solaris has 64bit libs available (default is 32bit), and a 64bit build environment. Just like we do. -- Debian - http://www.debian.org/ Linux 1394 - http://linux1394.sourceforge.net/ Subversion - http://subversion.tigris.org/ Deqo - http://www.deqo.com/
