diff options
Diffstat (limited to 'src/include/pg_config_manual.h')
| -rw-r--r-- | src/include/pg_config_manual.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h index ee7dab0bd60..5e2ae6f88e7 100644 --- a/src/include/pg_config_manual.h +++ b/src/include/pg_config_manual.h @@ -57,6 +57,14 @@ #define NUM_USER_DEFINED_LWLOCKS 4 /* + * When we don't have native spinlocks, we use semaphores to simulate them. + * Decreasing this value reduces consumption of OS resources; increasing it + * may improve performance, but supplying a real spinlock implementation is + * probably far better. + */ +#define NUM_SPINLOCK_SEMAPHORES 1024 + +/* * Define this if you want to allow the lo_import and lo_export SQL * functions to be executed by ordinary users. By default these * functions are only available to the Postgres superuser. CAUTION: |