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Re: Do I need 64Bit if RAM is more than 4 GB?

Frederik Schueler wrote:
> Bob Proulx wrote:
> > Our own benchmarks at work show about a 7%-8% decrease in performance
> > when you turn on CONFIG_HIGHMEM64G.  This was for a configuration like
> > this: xw8000 dual P4 3.06GHz w/ 6GB ram running two 3GB processes.
> Maybe this is related to the missing IOMMU on em64t systems?

The Intel Xeon is 32-bit only.  I have no benchmarks for the em64t yet.


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