Re: [RFC PATCH 0/5] New fallback workflow for heterogeneous memory system
From: Michal Hocko
Date: Thu Apr 25 2019 - 02:37:32 EST
On Thu 25-04-19 09:21:30, Fan Du wrote:
> However PMEM has different characteristics from DRAM,
> the more reasonable or desirable fallback style would be:
> DRAM node 0 -> DRAM node 1 -> PMEM node 2 -> PMEM node 3.
> When DRAM is exhausted, try PMEM then.
Why and who does care? NUMA is fundamentally about memory nodes with
different access characteristics so why is PMEM any special?