On Sun, Dec 01, 2002 at 08:46:40PM -0800, David S. Miller wrote:
> X86_64 on the other hand seems to run x86 binaries in a similar
> fashion. I don't know how people currently doing this port intend
> to do the useland, but I bet it would benefit from a mostly 32-bit
> userland just like sparc64/ppc64 does, both in space and performance.
Except that x86-64 binaries get to use 16 more registers, can use
pc-relative addressing modes, and have a sane function calling
convention. So things tend to run a bit faster in 64-bit mode.
r~
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