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| author | Tomas Vondra | 2025-04-07 20:51:49 +0000 |
|---|---|---|
| committer | Tomas Vondra | 2025-04-07 21:08:17 +0000 |
| commit | 65c298f61fc70f2f960437c05649f71b862e2c48 (patch) | |
| tree | c6f990de6bee1ab4c8b01f18c9e9b8f44e9dcc7c /configure.ac | |
| parent | 17bcf4f5450430f67b744c225566c9e0e6413e95 (diff) | |
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
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index fc5f7475d07..2a78cddd825 100644 --- a/configure.ac +++ b/configure.ac @@ -1054,6 +1054,20 @@ fi # +# libnuma +# +AC_MSG_CHECKING([whether to build with libnuma support]) +PGAC_ARG_BOOL(with, libnuma, no, [build with libnuma support], + [AC_DEFINE([USE_LIBNUMA], 1, [Define to build with NUMA support. (--with-libnuma)])]) +AC_MSG_RESULT([$with_libnuma]) +AC_SUBST(with_libnuma) + +if test "$with_libnuma" = yes ; then + AC_CHECK_LIB(numa, numa_available, [], [AC_MSG_ERROR([library 'libnuma' is required for NUMA support])]) + PKG_CHECK_MODULES(LIBNUMA, numa) +fi + +# # XML # AC_MSG_CHECKING([whether to build with XML support]) |