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shortmon_cell.sql
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shortmon_cell.sql
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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.
-- shortmon_cell.sql : script by Tanel Poder (http://blog.tanelpoder.com)
COL wait_class FOR a15
COL event FOR a35
COL time_range HEAD "WAIT_TIM_BUCKET_US+" FOR A26 JUST RIGHT
COL avg_wait_us HEAD "AVG_WAIT_IN_BKT_US" FOR 9,999,999,999
COL pct_event FOR a9
COL pct_total FOR a9
COL cell_path FOR a16
BREAK ON state ON wait_class ON event SKIP 1 NODUPLICATES ON CELL_PATH SKIP 1
-- TODO: ignore latest sample (0 waits)
SELECT /* (hint disabled) LEADING(@"SEL$4" "S"@"SEL$4" "A"@"SEL$4") USE_HASH(@"SEL$4" "A"@"SEL$4") */
session_state state
, wait_class
, event
, cell_path
, ROUND(AVG(time_waited)) avg_wait_us
, LPAD(REPLACE(TO_CHAR(POWER(2,TRUNC(LOG(2,CASE WHEN time_waited < 1 THEN NULL ELSE time_waited END))),'9,999,999,999')||' ..'||TO_CHAR(POWER(2,TRUNC(LOG(2,CASE WHEN time_waited < 1 THEN NULL ELSE time_waited END)))*2, '9,999,999,999'), ' ',''), 26) time_range
, COUNT(*) samples
, LPAD(TO_CHAR(TO_NUMBER(ROUND(RATIO_TO_REPORT(COUNT(*)) OVER (PARTITION BY session_state, wait_class, event) * 100, 1), 999.9))||' %',8) pct_event
, '|'||RPAD( NVL( LPAD('#', ROUND(RATIO_TO_REPORT(COUNT(*)) OVER (PARTITION BY session_state, wait_class, event) * 10), '#'), ' '), 10,' ')||'|' pct_event_vis
, LPAD(TO_CHAR(TO_NUMBER(ROUND(RATIO_TO_REPORT(COUNT(*)) OVER () * 100, 1), 999.9))||' %',8) pct_total
, '|'||RPAD( NVL( LPAD('#', ROUND(RATIO_TO_REPORT(COUNT(*)) OVER () * 10), '#'), ' '), 10,' ')||'|' pct_total_vis
FROM
v$active_session_history
, v$cell
WHERE
1=1
AND v$cell.cell_hashval = v$active_session_history.p1
AND sample_time BETWEEN &1 AND &2 -- sysdate-1/24 AND sysdate
--AND sample_time BETWEEN TIMESTAMP'2012-04-29 19:30:00' AND TIMESTAMP'2012-04-29 19:30:59'
AND (REGEXP_LIKE(wait_class, 'User I/O')) --OR REGEXP_LIKE(event, '&1'))
GROUP BY
session_state
, wait_class
, event
, cell_path
, POWER(2,TRUNC(LOG(2,CASE WHEN time_waited < 1 THEN NULL ELSE time_waited END)))
ORDER BY
session_state
, wait_class
, event
, cell_path
, time_range NULLS FIRST
, samples DESC
/