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


On Thu, Sep 09, 2004 at 07:23:24PM -0600, 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?


Frederik Schueler

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