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| author | Michael Paquier <michael@paquier.xyz> | 2021-09-08 12:02:30 +0900 |
|---|---|---|
| committer | Michael Paquier <michael@paquier.xyz> | 2021-09-08 12:02:30 +0900 |
| commit | bd1788051b02cfddcd9ef0e2fd094972f372b8fd (patch) | |
| tree | a0bc449c2d8a6b6e91fe96d7b2353c3d91339085 /src/backend/utils/misc/guc.c | |
| parent | fd0625c7a9c679c0c1e896014b8f49a489c3a245 (diff) | |
| download | postgresql-bd1788051b02cfddcd9ef0e2fd094972f372b8fd.tar.gz postgresql-bd1788051b02cfddcd9ef0e2fd094972f372b8fd.zip | |
Introduce GUC shared_memory_size
This runtime-computed GUC shows the size of the server's main shared
memory area, taking into account the amount of shared memory allocated
by extensions as this is calculated after processing
shared_preload_libraries.
Author: Nathan Bossart
Discussion: https://postgr.es/m/F2772387-CE0F-46BF-B5F1-CC55516EB885@amazon.com
Diffstat (limited to 'src/backend/utils/misc/guc.c')
| -rw-r--r-- | src/backend/utils/misc/guc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 467b0fd6fe7..c339acf0670 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -664,6 +664,7 @@ static int max_index_keys; static int max_identifier_length; static int block_size; static int segment_size; +static int shared_memory_size_mb; static int wal_block_size; static bool data_checksums; static bool integer_datetimes; @@ -2338,6 +2339,17 @@ static struct config_int ConfigureNamesInt[] = }, { + {"shared_memory_size", PGC_INTERNAL, RESOURCES_MEM, + gettext_noop("Shows the size of the server's main shared memory area (rounded up to the nearest MB)."), + NULL, + GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE | GUC_UNIT_MB + }, + &shared_memory_size_mb, + 0, 0, INT_MAX, + NULL, NULL, NULL + }, + + { {"temp_buffers", PGC_USERSET, RESOURCES_MEM, gettext_noop("Sets the maximum number of temporary buffers used by each session."), NULL, |