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At 1:45 AM -0800 1/13/98, Jonathan Shapiro wrote:
>Suppose that the average ratio of page tables to pages is 1:32 (which I
>think will prove optimistic -- numbers are very welcome). Then on a 64GB
>phys mem system, we should expect that something close to 2GB will be used
>for page tables (I'm ignoring page size changes for this discusion). This
>is more than the kernel can map simultaneously into its 0.5 Gbyte window.

I take it that the systems of interest don't have Sparc-like instructions which directly access physical addresses.

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• [ Next ] In reply to: Jonathan Shapiro