Re: Draft for basic NUMA observability

Hello

I think you should remove numa_warn() and numa_error() from 0001.
AFAICS they are dead code (even with all your patches applied), and
furthermore would get you in trouble regarding memory allocation because
src/port is not allowed to use palloc et al.  If you wanted to keep them
you'd have to have them in src/common, but looking at the rest of the
code in that patch, ISTM src/port is the right place for it.  If in the
future you discover that you do need numa_warn(), you can create a
src/common/ file for it then.

Is pg_buffercache really the best place for these NUMA introspection
routines?  I'm not saying that it isn't, maybe we're okay with that
(particularly if we can avoid duplicated code), but it seems a bit weird
to me.

-- 
Álvaro Herrera               48°01'N 7°57'E  —  https://www.EnterpriseDB.com/
"No me acuerdo, pero no es cierto.  No es cierto, y si fuera cierto,
 no me acuerdo."                 (Augusto Pinochet a una corte de justicia)