diff options
| -rw-r--r-- | doc/src/sgml/pgbuffercache.sgml | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/doc/src/sgml/pgbuffercache.sgml b/doc/src/sgml/pgbuffercache.sgml index fd2446d6542..b2b5bce480c 100644 --- a/doc/src/sgml/pgbuffercache.sgml +++ b/doc/src/sgml/pgbuffercache.sgml @@ -135,12 +135,11 @@ </para> <para> - When the <structname>pg_buffercache</structname> view is accessed, internal buffer - manager locks are taken for long enough to copy all the buffer state - data that the view will display. - This ensures that the view produces a consistent set of results, while not - blocking normal buffer activity longer than necessary. Nonetheless there - could be some impact on database performance if this view is read often. + Since buffer manager locks are not taken to copy the buffer state data that + the view will display, accessing <structname>pg_buffercache</structname> view + has less impact on normal buffer activity but it doesn't provide a consistent + set of results across all buffers. However, we ensure that the information of + each buffer is self-consistent. </para> </sect2> |