>
> You seems to be misrepresenting the kernel change.  Since Linux 2.2 you
> could mix and match kernels (SMP or not) with systems (SMP or not)
> however you'd like.  SMP was automatically detected and utilized.
>
> The "SMP Alternatives" added in 2.6.17 allows an SMP kernel become a true
> UP kernel AND avoid the locking overhead (the reverse can be true too).
> A UP system still has the bloat of all those NO-OPs though.
>
>     http://lwn.net/Articles/164121/
>     http://lwn.net/Articles/163810/
>
> I think this change maybe a bit too recent for support by distributions.
>
>         -Paul
>


Ah, you are correct, I was thinking of something else. The 2.6.17
kernel is masked in gentoo's portage, I've been meaning to try it.

slide
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