max_fsm_pages

Sets the maximum number of disk pages for which free space will be tracked in the shared free-space map.

Reading PG 8.3·documented in 5 of 24 versions, 7.4 to 8.3

7.4 8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

Historical documentation for a PostgreSQL version that is no longer supported.

Type: integer
Context: See manual
Measured default: No measurement for this version
Unit: —

Definition PG 8.3 manual

Sets the maximum number of disk pages for which free space will be tracked in the shared free-space map. Six bytes of shared memory are consumed for each page slot. This setting must be at least 16 * max_fsm_relations. The default is chosen by initdb depending on the amount of available memory, and can range from 20k to 200k pages. This parameter can only be set at server start.

Version history 2

8.3 → 8.4 removed
8.1 → 8.2 changed

Definition snapshot: english-manuals:077eda99e435b4041bede0216ed… · English manual source