[openib-general] Timeline of IPoIB performance

Grant Grundler iod00d at hp.com
Mon Oct 10 16:30:54 PDT 2005


On Mon, Oct 10, 2005 at 02:26:52PM -0700, Grant Grundler wrote:
...
> If it's interleaving, every other cacheline will be "local".

ISTR AMD64 was page-interleaved but then got confused by documents
describing "128-bit" 2-way interleave. I now realize the 128bit
is refering to interleave between two "banks" of memory behind
each memory controller. ie 2 * 128-bit provides in the 32-byte
cacheline size that most x86 programs expect.

Anyway, I'm hoping that we'll see a consistent result if node interleave
is turned off.

sorry for the confusion,
grant



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