diff options
Diffstat (limited to 'src/include/miscadmin.h')
| -rw-r--r-- | src/include/miscadmin.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h index 06a86f9ac1..14bd574fc2 100644 --- a/src/include/miscadmin.h +++ b/src/include/miscadmin.h @@ -263,6 +263,15 @@ extern PGDLLIMPORT double hash_mem_multiplier; extern PGDLLIMPORT int maintenance_work_mem; extern PGDLLIMPORT int max_parallel_maintenance_workers; +/* + * Upper and lower hard limits for the buffer access strategy ring size + * specified by the VacuumBufferUsageLimit GUC and BUFFER_USAGE_LIMIT option + * to VACUUM and ANALYZE. + */ +#define MIN_BAS_VAC_RING_SIZE_KB 128 +#define MAX_BAS_VAC_RING_SIZE_KB (16 * 1024 * 1024) + +extern PGDLLIMPORT int VacuumBufferUsageLimit; extern PGDLLIMPORT int VacuumCostPageHit; extern PGDLLIMPORT int VacuumCostPageMiss; extern PGDLLIMPORT int VacuumCostPageDirty; |