diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index 72bc1ff17e3..cb527bedbc1 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1,5 +1,5 @@ @@ -1151,6 +1151,10 @@ SET ENABLE_SEQSCAN TO OFF; be tracked in the shared free-space map. Six bytes of shared memory are consumed for each page slot. This setting must be more than 16 * max_fsm_relations. The default is 20000. + The last few lines of a database-wide VACUUM VERBOSE + can help in determining if the the default setting is suitable. + A NOTICE message is also printed during such an operation + if the current setting is too low. This option can only be set at server start. @@ -1167,6 +1171,10 @@ SET ENABLE_SEQSCAN TO OFF; free space will be tracked in the shared free-space map. Roughly fifty bytes of shared memory are consumed for each slot. The default is 1000. + The last few lines of a database-wide VACUUM VERBOSE + can help in determining if the the default setting is suitable. + A NOTICE message is also printed during such an operation + if the current setting is too low. This option can only be set at server start.