On Fri, 2004-12-17 at 08:09 +0100, Jay Turner wrote: > On Fri, Dec 17, 2004 at 11:25:38AM +1100, Guy Waugh wrote: > > I guess this raises the question 'what is the difference between the > > [non-SMP] ia32e kernel and the [SMP] x86_64 kernel'? > So, for RHEL3, I would stich with the ia32e kernel, as it has > optimizations which are specific to the ia32e processor. Starting with > RHEL4, those optimizations have been integrated into the x86_64 kernel and > you'll again have a choice of UP or SMP kernels. actually it's the other way around... the x86-64 kernel had optimizations that don't work on the em64t cpus so we had to add a second kernel without those optimizations..
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