1. Monitoring and Tuning Oracle for z/OS and Oracle for z/Linux

2. Thomas Niewel Oracle Deutschland GmbH [email_address]

6. Diagnose from the Oracle point of view Statspack A short overview

13. Environment section STATSPACK report for DB Name DB Id Instance Inst Num Release Cluster Host ------------ ----------- ------------ -------- ----------- ------- ------------ RECONPRD 1403107896 RECONPRD 1 9.2.0.2.0 NO lin390t1 Snap Id Snap Time Sessions Curs/Sess Comment ------- ------------------ -------- --------- ------------------- Begin Snap: 2 03-Mar-03 11:28:01 10 5.1 End Snap: 31 04-Mar-03 11:58:04 17 5.5 Elapsed: 30.05 (mins) Cache Sizes (end) ~~~~~~~~~~~~~~~~~ Buffer Cache: 256M Std Block Size: 16K Shared Pool Size: 48M Log Buffer: 128K

18. Instance Efficiency Instance Efficiency Percentages (Target 100%) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Buffer Nowait %: 99.99 Redo NoWait %: 99.97 Buffer Hit %: 59.00 In-memory Sort %: 99.99 Library Hit %: 99.94 Soft Parse %: 99.69 Execute to Parse %: 88.89 Latch Hit %: 99.98 Parse CPU to Parse Elapsd %: 56.55 % Non-Parse CPU: 99.93 Shared Pool Statistics Begin End ------ ------ Memory Usage %: 38.86 66.81 % SQL with executions>1: 43.41 87.22 % Memory for SQL w/exec>1: 39.28 80.21

22. Top SQL CPU Elapsd Buffer Gets Executions Gets per Exec %Total Time (s) Time (s) Hash Value --------------- ------------ -------------- ------ -------- --------- ---------- 79,562,398 8,114 9,805.6 34.6 27182.71 28127.71 1525844323 Module: SQL*Plus SELECT MAX(STMT_BKG_DATE_CLOSE) FROM GAH_T_STATEMENTS WHERE S TMT_ACCT_ID = :b1 AND ((:b2 = :b3 AND STMT_CARRIER != :b4 AND STMT_MSG_TYPE != :b5 AND (:b6 IS NULL OR :b6 = STMT_CARRIER ) AND ((:b8 IS NULL AND STMT_MSG_TYPE != :b9 ) OR (:b8 IS NOT NU LL AND :b8 = STMT_MSG_TYPE ))) OR (:b2 = :b13 AND STMT_CARRIER

24. I/O Statistics Tablespace ------------------------------ Av Av Av Av Buffer Av Buf Reads Reads/s Rd(ms) Blks/Rd Writes Writes/s Waits Wt(ms) -------------- ------- ------ ------- ------------ -------- ---------- ------ GAH_TS00_DT_MEDIUM 15,242,896 160 0.4 6.1 41,066 0 22,468 18.4 GAH_TS00_IX_ITEM 210,346 2 11.2 1.0 130,299 1 9 15.6 GAH_TS00_IX_MEDIUM 207,433 2 6.9 1.0 86,699 1 39 43.8 RECONPRD_TS00_TEMP 185,865 2 1.7 1.6 101,560 1 0 0.0 GAH_TS00_IX_ITEM_REF 155,027 2 8.4 1.0 34,867 0 1 0.0

28. Diagnosing high CPU usage CPU Elapsd Buffer Gets Executions Gets per Exec %Total Time (s) Time (s) Hash Value --------------- ------------ -------------- ------ -------- --------- ---------- 4,494,662 155 28,997.8 2.0 1049.63 2414.11 3961361411 SELECT * FROM GAH_T_STATEMENTS WHERE STMT_ACCT_ID = :b1 AND ((:b2 = :b3 AND STMT_CARRIER != :b4 AND STMT_MSG_TYPE != :b5 AND (:b6 IS NULL OR :b6 = STMT_CARRIER ) AND ((:b8 IS NULL AND STMT_MSG_TYPE != :b9 ) OR (:b8 IS NOT NULL AND :b8 = STMT_MSG_ TYPE ))) OR (:b2 = :b13 AND STMT_CARRIER = :b14 AND STMT_MSG_T Module: SQL*Plus

39. % Total Event Waits Time (s) Wt Time -------------------------------------------- ------------ ------------ ------- db file sequential read 89,086,819 11,009 93.13 db file scattered read 9,875,076 776 6.56 file open 505,227 23 .19 log file sync 440,409 8 .07 latch free 11,042,510 3 .03 High I/O utilization Top 5 Timed Events

40. Tablespace Av Av Av Av Buffer Av Buf Reads Reads/s Rd(ms) Blks/Rd Writes Writes/s Waits Wt(ms) -------------- ------- ------ ------- ------------ -------- ---------- ------ RECEIVABLE_T_01 18,398,460 213 12.0 1.6 59,325 1 4,892,686 0.0 SO_T_03 6,827,475 79 13.2 1.6 27,462 0 4,506 0.0 SO_I_01 5,356,393 62 9.0 1.3 18,388 0 35,935 0.0 PO_I_01 4,641,732 1400 21.7 1.8 72,563 1 217,799 0.0 Tablespace I/O Stats: High I/O utilization

41. D I R E C T A C C E S S D E V I C E A C T I V I T Y DEVICE AVG AVG AVG AVG AVG AVG AVG AVG % % % AVG % % STORAGE DEV DEVICE VOLUME LCU ACTIVITY RESP IOSQ DPB CUB DB PEND DISC CONN DEV DEV DEV NUMBER ANY MT GROUP NUM TYPE SERIAL RATE TIME TIME DLY DLY DLY TIME TIME TIME CONN UTIL RESV ALLOC ALLOC PEND DBORACLE 7651 33903 LEOR00 008F 0.817 4 0 0.0 0.0 0.0 0.2 2.6 0.8 0.06 0.28 0.0 1.0 100.0 0.0 DBORACLE 7652 33903 LEOR01 008F 0.878 9 0 0.0 0.0 0.0 0.2 0.3 8.7 0.76 0.79 0.0 3.0 100.0 0.0 DBORACLE 7653 33903 LEOR02 008F 0.502 2 0 0.0 0.0 0.0 0.2 0.0 1.5 0.08 0.08 0.0 6.0 100.0 0.0 DBORACLE 7654 33903 LEOR03 008F 108.968 56 52 0.0 0.0 0.0 0.2 2.4 0.8 0.08 0.32 0.0 1.0 100.0 0.0 DBORACLE 7655 33903 LEOR04 008F 0.828 3 0 0.0 0.0 0.0 0.2 2.3 0.8 0.06 0.25 0.0 1.0 100.0 0.0 DBORACLE 7656 33903 LEOR05 008F 98.779 50 48 0.0 0.0 0.0 0.2 1.7 0.8 0.13 0.42 0.0 1.0 100.0 0.0 DBORACLE 7657 33903 LEOR06 008F 2.768 2 0 0.0 0.0 0.0 0.3 1.3 0.7 0.20 0.56 0.0 1.0 100.0 0.0 DBORACLE 7658 33903 LEOR07 008F 0.943 3 0 0.0 0.0 0.0 0.2 2.3 0.7 0.07 0.28 0.0 1.0 100.0 0.0 DBORACLE 7659 33903 LEOR08 008F 1.003 4 0 0.0 0.0 0.0 0.2 3.5 0.8 0.08 0.43 0.0 1.0 100.0 0.0 DBORACLE 765A 33903 LEOR09 008F 0.945 3 0 0.0 0.0 0.0 0.2 2.2 0.8 0.07 0.28 0.0 1.0 100.0 0.0 DBORACLE 765B 33903 LEOR0A 008F 0.217 3 0 0.0 0.0 0.0 0.2 2.2 0.8 0.02 0.06 0.0 1.0 100.0 0.0 DBORACLE 765C 33903 LEOR0B 008F 0.833 4 0 0.0 0.0 0.0 0.2 2.5 0.8 0.06 0.28 0.0 2.0 100.0 0.0 DBORACLE 765D 33903 LEOR0C 008F 0.963 4 0 0.0 0.0 0.0 0.2 2.7 0.9 0.09 0.35 0.0 1.0 100.0 0.0 DBORACLE 765E 33903 LEOR0D 008F 0.013 3 0 0.0 0.0 0.0 0.2 2.6 0.5 0.00 0.00 0.0 1.0 100.0 0.0 DBORACLE 765F 33903 LEOR0E 008F 0.935 4 0 0.0 0.0 0.0 0.2 3.0 0.8 0.07 0.35 0.0 1.0 100.0 0.0 RMF Report ( Monitor 1; RMF Postprocessor) High I/O utilization

51. Idle System Top 5 Timed Events ~~~~~~~~~~~~~~~~~~ % Total Event Waits Time (s) Ela Time -------------------------------------------- ------------ ----------- -------- enqueue 1,560,523 78,588 50.24 CPU time 59,961 38.33 db file sequential read 1,635,253 6,324 4.04 db file scattered read 14,620,725 5,907 3.78 control file parallel write 32,816 1,396 .89 -------------------------------------------------------------

52. Idle System Enqueue activity for DB: RECONPRD Instance: RECONPRD Snaps: 2 -31 -> Enqueue stats gathered prior to 9i should not be compared with 9i data -> ordered by Wait Time desc, Waits desc Avg Wt Wait Eq Requests Succ Gets Failed Gets Waits Time (ms) Time (s) -- ------------ ------------ ----------- ----------- ------------- ------------ TX 438,961 438,941 20 114 512,902.49 58,471 TC 34,530 34,530 0 6,904 369.61 2,552 PS 9,526,323 9,386,524 139,799 1,517,315 .25 381 CF 42,761 42,751 10 23 897.57 21 CI 55,594 55,594 0 12 6.17 0 HW 11,356 11,356 0 8 .13 0 -------------------------------------------------------------

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