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2026-03-12 20:23:15

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2026-03-12 21:23:47 +01:00
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tpt/awr/awr_log_file_sync.sql Normal file
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-- 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
CAST(begin_interval_time AS DATE) begin_time
, AVG(CASE WHEN event_name = 'log file sync' THEN time_waited_micro/nullif(total_waits,0) END) avg_log_file_sync
, AVG(CASE WHEN event_name = 'log file parallel write' THEN time_waited_micro/nullif(total_waits,0) END) avg_log_file_parallel_write
FROM
dba_hist_snapshot
NATURAL JOIN
dba_hist_system_event
WHERE
event_name IN ('log file sync', 'log file parallel write')
AND begin_interval_time > SYSDATE - 15
GROUP BY CAST(begin_interval_time AS DATE)
ORDER BY
begin_time
/