Re: [PATCH 0/4] x86_64 boot -v2: Add linked listof structsetup_data to boot protocol

From: Paul Jackson
Date: Fri Mar 28 2008 - 09:36:29 EST


YH wrote:
> interesting, that 512nodes/4096 box physics memory is not continuous?

If each node board is stuffed with the same amount of RAM,
and that amount of RAM is a power of two size, then you
are correct that it would be continuous.

But if the nodes are stuffed with unequal amounts of RAM,
or if its not a power of two, then, because we are doing
what Andi figures (breaking the addr into bit fields, for
efficient implementation) then we can end up with many holes.

--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@xxxxxxx> 1.940.382.4214
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