x86-64 on i386 (was Re: Promoting i386 version over x86_64?)

[Nicolas Mailhot]

Le mardi 15 décembre 2009 à 16:54 +0000, Paul Jakma a écrit :

> I personally think the model used by many Unixes from the 90s makes a 
> lot of sense - 32bit userpace by default, 64bit kernel, 64bit for a 
> select few applications that actually need the benefits of x86_64 
> (memory/bit more performance), but hey..

Apples and oranges. 64bit on other arches only changes memory accesses,
x86_64 changes a lot more than just that, and the other changes in
x86_64 trump the memory costs.

-- 
Nicolas Mailhot
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