diff --git a/src/backend/commands/analyze.c b/src/backend/commands/analyze.c
index 8af12b5c6b..fea1bd6f44 100644
--- a/src/backend/commands/analyze.c
+++ b/src/backend/commands/analyze.c
@@ -312,6 +312,7 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 	Oid			save_userid;
 	int			save_sec_context;
 	int			save_nestlevel;
+	PgStat_Counter startblockreadtime = 0;
 
 	if (inh)
 		ereport(elevel,
@@ -347,6 +348,7 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 	if (IsAutoVacuumWorkerProcess() && params->log_min_duration >= 0)
 	{
 		pg_rusage_init(&ru0);
+		startblockreadtime = pgStatBlockReadTime;
 		if (params->log_min_duration > 0)
 			starttime = GetCurrentTimestamp();
 	}
@@ -686,10 +688,11 @@ do_analyze_rel(Relation onerel, VacuumParams *params,
 			TimestampDifferenceExceeds(starttime, GetCurrentTimestamp(),
 									   params->log_min_duration))
 			ereport(LOG,
-					(errmsg("automatic analyze of table \"%s.%s.%s\" system usage: %s",
+					(errmsg("automatic analyze of table \"%s.%s.%s\" system usage: IO read time %.2f s, %s",
 							get_database_name(MyDatabaseId),
 							get_namespace_name(RelationGetNamespace(onerel)),
 							RelationGetRelationName(onerel),
+							(double) (pgStatBlockReadTime - startblockreadtime)/1000000,
 							pg_rusage_show(&ru0))));
 	}