Re: [PATCH -V10 RESEND 0/6] NUMA balancing: optimize memory placement for memory tiering system

[Peter Zijlstra]

On Tue, Dec 07, 2021 at 10:27:51AM +0800, Huang Ying wrote:
> After commit c221c0b0308f ("device-dax: "Hotplug" persistent memory
> for use like normal RAM"), the PMEM could be used as the
> cost-effective volatile memory in separate NUMA nodes.  In a typical
> memory tiering system, there are CPUs, DRAM and PMEM in each physical
> NUMA node.  The CPUs and the DRAM will be put in one logical node,
> while the PMEM will be put in another (faked) logical node.

So what does a system like that actually look like, SLIT table wise, and
how does that affect init_numa_topology_type() ?