From bdd5726c347016ea34e9fb68d1b8b71046e25d2e Mon Sep 17 00:00:00 2001
From: Andres Freund
Date: Fri, 19 Sep 2014 16:33:16 +0200
Subject: Add the capability to display summary statistics to pg_xlogdump.
The new --stats/--stats=record options to pg_xlogdump display per
rmgr/per record statistics about the parsed WAL. This is useful to
understand what the WAL primarily consists of, to allow targeted
optimizations on application, configuration, and core code level.
It is likely that we will want to fine tune the statistics further,
but the feature already is quite helpful.
Author: Abhijit Menon-Sen, slightly editorialized by me
Reviewed-By: Andres Freund, Dilip Kumar and Furuya Osamu
Discussion: 20140604104716.GA3989@toroid.org
---
doc/src/sgml/pg_xlogdump.sgml | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'doc/src')
diff --git a/doc/src/sgml/pg_xlogdump.sgml b/doc/src/sgml/pg_xlogdump.sgml
index 1d1a2cea870..d9f4a6a499c 100644
--- a/doc/src/sgml/pg_xlogdump.sgml
+++ b/doc/src/sgml/pg_xlogdump.sgml
@@ -179,6 +179,18 @@ PostgreSQL documentation
+
+
+
+
+
+ Display summary statistics (number and size of records and
+ full-page images) instead of individual records. Optionally
+ generate statistics per-record instead of per-rmgr.
+
+
+
+
--
cgit v1.2.3