Files
oracle/vg/top_session_by_cpu.sql
2026-03-12 21:23:47 +01:00

130 lines
4.2 KiB
SQL

@@header
/*
*
* Author : Vishal Gupta
* Purpose : Display top session by statname
* Usage : @<filename> <statname> [<toprecordcount>]
* Parameters : 1 - Instance Number (Use % as wildcard)
* 2 - Number of top record counts
*
*
* Revision History:
* ===================
* Date Author Description
* --------- ------------ -----------------------------------------
* 11-Apr-12 Vishal Gupta First cut
*
*/
/************************************
* INPUT PARAMETERS
************************************/
DEFINE inst_id="&&1"
DEFINE toprecordcount="&&2"
COLUMN _inst_id NEW_VALUE inst_id NOPRINT
COLUMN _toprecordcount NEW_VALUE toprecordcount NOPRINT
set term off
SELECT DECODE('&&inst_id','','%','&&inst_id') "_inst_id"
, DECODE('&&toprecordcount','','20','&&toprecordcount') "_toprecordcount"
FROM DUAL;
set term on
PROMPT
PROMPT **********************************************************************************
PROMPT * Top &toprecordcount Session by CPU Usage in current call
PROMPT *
PROMPT * Input Parameters
PROMPT * - Instance Number = '&&INST_ID'
PROMPT * - Top row count = '&&toprecordcount'
PROMPT **********************************************************************************
COLUMN name HEADING "Stat Name" FORMAT a40
COLUMN cpu_time HEADING "CPU Time" FORMAT a12 JUSTIFY RIGHT
COLUMN "%age" HEADING "%age" FORMAT 999.00
COLUMN inst_id HEADING "I#" FORMAT 99
COLUMN sid HEADING "SID" FORMAT 9999
COLUMN sess HEADING "Session" FORMAT a15
COLUMN spid HEADING "SPID" FORMAT a6
COLUMN logon_time HEADING "Logon Time" FORMAT a20
COLUMN username HEADING "UserName" FORMAT a20
COLUMN last_call_et HEADING "Last|Call|(sec)" FORMAT 999,999
COLUMN service_name HEADING "ServiceName" FORMAT a25
COLUMN osuser HEADING "OS User" FORMAT a20 TRUNCATE
COLUMN program HEADING "Program" FORMAT a50 TRUNCATE
COLUMN machine HEADING "Machine" FORMAT a20 TRUNCATE
WITH sess AS
(
SELECT /*+ materialize */ sn.name
, ROUND((ss.VALUE - ss2.VALUE)/ 100 ) value
, p.spid
, s.*
FROM gv$session s
, gv$sesstat ss
, gv$sesstat ss2
, v$statname sn
, v$statname sn2
, gv$process p
WHERE s.sid = ss.sid
AND s.inst_id = ss.inst_id
AND ss.statistic# = sn.statistic#
AND s.paddr = p.addr (+)
AND s.inst_id = p.inst_id (+)
AND s.sid = ss2.sid
AND s.inst_id = ss2.inst_id
AND ss2.statistic# = sn2.statistic#
AND s.inst_id LIKE '&&INST_ID'
AND sn.name = 'CPU used by this session'
AND sn2.name = 'CPU used when call started'
AND s.type <> 'BACKGROUND'
AND s.status = 'ACTIVE'
-- AND DECODE(s.status ,'INACTIVE',s.last_call_et,0) < 60 -- exclude all session inactive for more than 60 sec.
)
SELECT c.cpu_time
, c.sid
, c.inst_id
-- , c.sid || ',' || c.serial# || ',@' || c.inst_id sess
, c.spid
, c.status
, to_char(c.logon_time, 'dd-MON-yyyy hh24:mi:ss') logon_time
, c.username
, c.last_call_et
, c.service_name
, c.osuser
, c.sql_id
, c.prev_sql_id
, c.PROGRAM
--, c.machine
FROM
(SELECT LPAD(FLOOR(a.value / 3600) || 'h '
|| LPAD(FLOOR(MOD(a.value , 3600 ) / 60),2) || 'm '
|| LPAD(MOD(a.value , 60 ) ,2) || 's'
, 12) cpu_time
, ROUND((a.VALUE / b.total_value) *100, 2) "%age"
, a.*
FROM sess a
, (SELECT DECODE('&&INST_ID', '%' ,'%', inst_id) inst_id
, SUM(value) total_value
FROM sess
GROUP BY DECODE('&&INST_ID', '%' ,'%', inst_id)
) b
WHERE a.value > 0
ORDER BY a.VALUE DESC
) c
WHERE rownum <= &&TOPRECORDCOUNT;
UNDEFINE INST_ID
UNDEFINE TOPRECORDCOUNT
UNDEFINE statname
@@footer