[Gllug] Kernel compile taking forever...!

[Andrew Halliwell]

And verily, didst Tethys announce to the hordes:
> 
> 
> Jack Bertram writes:
> 
> >64-bit code runs slower on an UltraSPARC than 32-bit code?
> 
> In some cases, yes. There's also a space penalty for having 64 bit
> binaries (which in part contributes to the performance hit due to
> increased load times). That's why Solaris generally runs with a
> 32 bit userland, with a few specific 64 bit apps where the benefits
> of being 64 bit outweigh the downsides.

Opteron's a different kettle of fish though.
Any penalty you get from increased load times should be more than negated by
the fact you've to a boatload of new registers, which of course, should
reduce memory requests and thus, increase speed.

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