2026-03-12 20:23:15

tpt/ash/ash_log_file_sync.sql

@@ -0,0 +1,18 @@
+-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
+-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+SELECT
+    POWER(2, TRUNC(LOG(2,NULLIF(time_waited,0)))) up_to_microsec
+  , COUNT(*)
+  , SUM(time_waited)
+  , MAX(time_waited)
+FROM
+    v$active_session_history a
+WHERE
+    a.event = 'log file sync'
+GROUP BY
+    POWER(2, TRUNC(LOG(2,NULLIF(time_waited,0)))) 
+ORDER BY
+    up_to_microsec
+/
+