From: Tomas Vondra <tomas.vondra@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Add support for basic NUMA awareness
Date: Mon, 07 Apr 2025 21:18:10 +0000
Message-ID: <E1u1tr8-003BbL-20@gemulon.postgresql.org> (raw)
Add support for basic NUMA awareness
Add basic NUMA awareness routines, using a minimal src/port/pg_numa.c
portability wrapper and an optional build dependency, enabled by
--with-libnuma configure option. For now this is Linux-only, other
platforms may be supported later.
A built-in SQL function pg_numa_available() allows checking NUMA
support, i.e. that the server was built/linked with the NUMA library.
The main function introduced is pg_numa_query_pages(), which allows
determining the NUMA node for individual memory pages. Internally the
function uses move_pages(2) syscall, as it allows batching, and is more
efficient than get_mempolicy(2).
Author: Jakub Wartak <jakub.wartak@enterprisedb.com>
Co-authored-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Tomas Vondra <tomas@vondra.me>
Discussion: https://postgr.es/m/CAKZiRmxh6KWo0aqRqvmcoaX2jUxZYb4kGp3N%3Dq1w%2BDiH-696Xw%40mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/65c298f61fc70f2f960437c05649f71b862e2c48
Modified Files
--------------
.cirrus.tasks.yml | 2 +
configure | 187 ++++++++++++++++++++++++++++++++++++
configure.ac | 14 +++
doc/src/sgml/func.sgml | 13 +++
doc/src/sgml/installation.sgml | 22 +++++
meson.build | 23 +++++
meson_options.txt | 3 +
src/Makefile.global.in | 6 +-
src/backend/utils/misc/guc_tables.c | 2 +-
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_proc.dat | 4 +
src/include/pg_config.h.in | 3 +
src/include/port/pg_numa.h | 40 ++++++++
src/include/storage/pg_shmem.h | 1 +
src/makefiles/meson.build | 3 +
src/port/Makefile | 1 +
src/port/meson.build | 1 +
src/port/pg_numa.c | 120 +++++++++++++++++++++++
18 files changed, 444 insertions(+), 3 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: tomas.vondra@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Add support for basic NUMA awareness
In-Reply-To: <E1u1tr8-003BbL-20@gemulon.postgresql.org>
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