Re: [RFC][PATCH v2 00/21] PMEM NUMA node and hotness accounting/migration

From: Fengguang Wu
Date: Fri Dec 28 2018 - 08:16:22 EST

On Fri, Dec 28, 2018 at 01:15:15PM +0100, Michal Hocko wrote:
On Fri 28-12-18 17:42:08, Wu Fengguang wrote:
Those look unnecessary complexities for this post. This v2 patchset
mainly fulfills our first milestone goal: a minimal viable solution
that's relatively clean to backport. Even when preparing for new
upstreamable versions, it may be good to keep it simple for the
initial upstream inclusion.

On the other hand this is creating a new NUMA semantic and I would like
to have something long term thatn let's throw something in now and care
about long term later. So I would really prefer to talk about long term
plans first and only care about implementation details later.

That makes good sense. FYI here are the several in-house patches that
try to leverage (but not yet integrate with) NUMA balancing. The last
one is brutal force hacking. They obviously break original NUMA
balancing logic.