Re: [resend][PATCH] mm: increase RECLAIM_DISTANCE to 30

[David Rientjes]

On Fri, 8 Oct 2010, Christoph Lameter wrote:

> It implies that zone reclaim is going to be automatically enabled if the
> maximum latency to the memory farthest away is 3 times or more that of a
> local memory access.
> 

It doesn't determine what the maximum latency to that memory is, it relies 
on whatever was defined in the SLIT; the only semantics of that distance 
comes from the ACPI spec that states those distances are relative to the 
local distance of 10.
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