RE: Ways to deprecate /sys/devices/system/memory/memoryX/phys_device ?
From: Luck, Tony
Date: Fri Sep 11 2020 - 15:39:31 EST
> It's actually really hard to map a DIMM to a physical address.
> Interleaving can mean that one page actually spans a bunch of DIMMs.
Heh! If NUMA mode is turned off your single page may have cache lines
from *every* DIMM in the system. Even with NUMA turned on the page
will have cache lines from every DIMM on the socket.
-Tony