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Re: comps discussion at fudcon and the future



On Fri, 2009-01-16 at 11:59 -0600, Matthew Woehlke wrote:
> Yes, that's better :-). That said, why on earth would you want to run 
> 32-bit processes on a 64-bit OS when 64-bit flavors are available?

You're running on a platform that isn't stooopid.  Only on x86 do x86_64
processes get "faster" due to access to more CPU registers.  But it
comes with a cost of much higher memory consumption.  On non x86 arches,
such as ppc, or s390, or sparc, the 32bit process has the full register
access and will run faster in 32bit mode and consume less memory than
the 64bit counterpart.  You still want a 64bit kernel there for various
reasons (like not even being able to run a 32bit kernel) but the
userland should be mostly 32bit.

-- 
Jesse Keating
Fedora -- FreedomĀ² is a feature!
identi.ca: http://identi.ca/jkeating

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