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| author | Tomas Vondra <tomas.vondra@postgresql.org> | 2025-04-07 22:51:49 +0200 |
|---|---|---|
| committer | Tomas Vondra <tomas.vondra@postgresql.org> | 2025-04-07 23:08:17 +0200 |
| commit | 65c298f61fc70f2f960437c05649f71b862e2c48 (patch) | |
| tree | c6f990de6bee1ab4c8b01f18c9e9b8f44e9dcc7c /src/backend/utils/misc/guc_tables.c | |
| parent | 17bcf4f5450430f67b744c225566c9e0e6413e95 (diff) | |
| download | postgresql-65c298f61fc70f2f960437c05649f71b862e2c48.tar.gz postgresql-65c298f61fc70f2f960437c05649f71b862e2c48.zip | |
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 'src/backend/utils/misc/guc_tables.c')
| -rw-r--r-- | src/backend/utils/misc/guc_tables.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c index f596fda568c..d54df555fba 100644 --- a/src/backend/utils/misc/guc_tables.c +++ b/src/backend/utils/misc/guc_tables.c @@ -566,7 +566,7 @@ static int ssl_renegotiation_limit; */ int huge_pages = HUGE_PAGES_TRY; int huge_page_size; -static int huge_pages_status = HUGE_PAGES_UNKNOWN; +int huge_pages_status = HUGE_PAGES_UNKNOWN; /* * These variables are all dummies that don't do anything, except in some |