diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/ref/pgtesttiming.sgml | 2 | ||||
| -rw-r--r-- | doc/src/sgml/system-views.sgml | 74 |
2 files changed, 75 insertions, 1 deletions
diff --git a/doc/src/sgml/ref/pgtesttiming.sgml b/doc/src/sgml/ref/pgtesttiming.sgml index 1fcdbf7f06e..afe6a12be4b 100644 --- a/doc/src/sgml/ref/pgtesttiming.sgml +++ b/doc/src/sgml/ref/pgtesttiming.sgml @@ -161,7 +161,7 @@ PostgreSQL documentation <para> <screen><![CDATA[ Testing timing overhead for 3 seconds. -Per loop time including overhead: 16.40 ns +Average loop time including overhead: 16.40 ns Histogram of timing durations: <= ns % of total running % count 0 0.0000 0.0000 0 diff --git a/doc/src/sgml/system-views.sgml b/doc/src/sgml/system-views.sgml index e1ac544ee40..d3ff8c35738 100644 --- a/doc/src/sgml/system-views.sgml +++ b/doc/src/sgml/system-views.sgml @@ -82,6 +82,11 @@ </row> <row> + <entry><link linkend="view-pg-dsm-registry-allocations"><structname>pg_dsm_registry_allocations</structname></link></entry> + <entry>shared memory allocations tracked in the DSM registry</entry> + </row> + + <row> <entry><link linkend="view-pg-file-settings"><structname>pg_file_settings</structname></link></entry> <entry>summary of configuration file contents</entry> </row> @@ -1086,6 +1091,75 @@ AND c1.path[c2.level] = c2.path[c2.level]; </sect1> + <sect1 id="view-pg-dsm-registry-allocations"> + <title><structname>pg_dsm_registry_allocations</structname></title> + + <indexterm zone="view-pg-dsm-registry-allocations"> + <primary>pg_dsm_registry_allocations</primary> + </indexterm> + + <para> + The <structname>pg_dsm_registry_allocations</structname> view shows shared + memory allocations tracked in the dynamic shared memory (DSM) registry. + This includes memory allocated by extensions using the mechanisms detailed + in <xref linkend="xfunc-shared-addin-after-startup" />. + </para> + + <table> + <title><structname>pg_dsm_registry_allocations</structname> Columns</title> + <tgroup cols="1"> + <thead> + <row> + <entry role="catalog_table_entry"><para role="column_definition"> + Column Type + </para> + <para> + Description + </para></entry> + </row> + </thead> + + <tbody> + <row> + <entry role="catalog_table_entry"><para role="column_definition"> + <structfield>name</structfield> <type>text</type> + </para> + <para> + The name of the allocation in the DSM registry. + </para></entry> + </row> + + <row> + <entry role="catalog_table_entry"><para role="column_definition"> + <structfield>type</structfield> <type>text</type> + </para> + <para> + The type of allocation. Possible values are <literal>segment</literal>, + <literal>area</literal>, and <literal>hash</literal>, which correspond + to dynamic shared memory segments, areas, and hash tables, respectively. + </para></entry> + </row> + + <row> + <entry role="catalog_table_entry"><para role="column_definition"> + <structfield>size</structfield> <type>int8</type> + </para> + <para> + Size of the allocation in bytes. NULL for entries of type + <literal>area</literal> and <literal>hash</literal>. + </para></entry> + </row> + </tbody> + </tgroup> + </table> + + <para> + By default, the <structname>pg_dsm_registry_allocations</structname> view + can be read only by superusers or roles with privileges of the + <literal>pg_read_all_stats</literal> role. + </para> + </sect1> + <sect1 id="view-pg-file-settings"> <title><structname>pg_file_settings</structname></title> |