1. EM Tuning Demo

2. Four Tuning Paths
Database Home Page
Performance Page ADDM Page
Drilldowns Solutions
SQL Session
Copyright 2006 Kyle Hailey

3. Path 1
Database Home Page
Performance Page ADDM Page
Drilldowns Solutions
SQL Session Actions
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4. Database Home Page
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5. ADDM Details
Tablespace Solution ASSM
Object
Solution 2: Partitioning
Solution 3: Free Lists
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6. Path 2
Database Home Page
Performance Page ADDM Page
Drilldowns Solutions
SQL Session Actions
Copyright 2006 Kyle Hailey

7. Database Home Page
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8. ADDM Page
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9. ADDM Details
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10. EM Product Layout for Performance
Database Home Page
Performance Page ADDM Page
Drilldowns Solutions
SQL Session
Copyright 2006 Kyle Hailey

11. Database Home Page
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12. Database Performance Page
Lots of waits
ADDM Report
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13. ADDM Page
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14. ADDM Details
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15. EM Product Layout for Performance
Database Home Page
Performance Page ADDM Page
Drilldowns Solutions
SQL Session
Copyright 2006 Kyle Hailey

16. Database Performance Page
“click on the
big stuff”
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17. Wait Drilldown : Concurrency
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18. SQL Drilldown
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19. Session Drilldown
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20. Session : Wait History
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21. Part II – Taking ADDM Advice
 10 users inserting concurrently into same table
insert into toto1 values (t,lpad('a',1000,'a'));
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22. Test 1
Elapsed Time 14:44
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23. ADDM Details
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24. ADDM Says
 Use ASSM
 Use Freelists
 Partition Object
 Trying out Freelists
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25. Test 2
Elapsed Time 14:59
Was 14:44 – now slower!
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26. ADDM Details
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27. ADDM says
 Increase Log File Size to 2000M to hold at least 20
minutes of redo
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28. Test 3
14:44 14:59 Elapsed 1:23
Elapsed Time 1:23
10x Improvement!
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29. Final ADDM Details
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30. Final
 Commit every 50 records instead of every record
 Got elapsed down from
 1:23
 0:47
Copyright 2006 Kyle Hailey

31. In Review
 By using
 Free Lists
 Large Redo Log files
 Job Processing went from
 Over 14 minutes to
 Just over 1 minute
 Thanks to ADDM and OEM 10g !
Copyright 2006 Kyle Hailey