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Diffstat (limited to 'doc/src/sgml/monitoring.sgml')
| -rw-r--r-- | doc/src/sgml/monitoring.sgml | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml index 9842f82091..df5242fa80 100644 --- a/doc/src/sgml/monitoring.sgml +++ b/doc/src/sgml/monitoring.sgml @@ -3870,6 +3870,32 @@ SELECT pid, wait_event_type, wait_event FROM pg_stat_activity WHERE wait_event i <row> <entry role="catalog_table_entry"> <para role="column_definition"> + <structfield>writebacks</structfield> <type>bigint</type> + </para> + <para> + Number of units of size <varname>op_bytes</varname> which the process + requested the kernel write out to permanent storage. + </para> + </entry> + </row> + + <row> + <entry role="catalog_table_entry"> + <para role="column_definition"> + <structfield>writeback_time</structfield> <type>double precision</type> + </para> + <para> + Time spent in writeback operations in milliseconds (if + <xref linkend="guc-track-io-timing"/> is enabled, otherwise zero). This + includes the time spent queueing write-out requests and, potentially, + the time spent to write out the dirty data. + </para> + </entry> + </row> + + <row> + <entry role="catalog_table_entry"> + <para role="column_definition"> <structfield>extends</structfield> <type>bigint</type> </para> <para> |