1. DB-7: OpenEdge® Database Performance Tuning
Gus Björklund
Wizard, Vice President Technology

2. Topics Easy Stuff: The Basics Disk Layout Esoterica
DB-7: OpenEdge Database Performance Tuning

3. First Things First > > probkup foo >
DB-7: OpenEdge Database Performance Tuning

4. “Out of the Box” Performance
> > proserve foo >
DB-7: OpenEdge Database Performance Tuning

5. “Out of the box” Performance
DB-7: OpenEdge Database Performance Tuning

6. “Nine Easy Pieces” for Better Results
DB-7: OpenEdge Database Performance Tuning

7. 1: Buffer Pool Size > > proserve foo -B 32000 >
DB-7: OpenEdge Database Performance Tuning

8. 2: Spinlock retry count
> > proserve foo -B spin >
DB-7: OpenEdge Database Performance Tuning

9. 3: Start BI Log Writer (BIW)
> > proserve foo -B spin > probiw foo >
DB-7: OpenEdge Database Performance Tuning

10. 4: Start Async Page Writer (APW)
> > proserve foo -B spin > probiw foo > proapw foo > proapw foo >
DB-7: OpenEdge Database Performance Tuning

11. 5: Increase BI Log Block Size
> > proutil foo -C truncate bi \ > -biblocksize 8 > proserve foo -B spin > probiw foo > proapw foo > proapw foo >
DB-7: OpenEdge Database Performance Tuning

12. 6: Increase BI Log Cluster Size
> > proutil foo -C truncate bi \ > -biblocksize 8 -bi 4096 > proserve foo -B spin > probiw foo > proapw foo > proapw foo >
DB-7: OpenEdge Database Performance Tuning

13. 7: Add BI Log buffers
> > proutil foo -C truncate bi \ > -biblocksize 8 -bi 4096 > proserve foo -B spin \ > -bibufs 25 > probiw foo > proapw foo > proapw foo >
DB-7: OpenEdge Database Performance Tuning

14. 8: Initial Database Layout
d "Schema Area" /users/gus/atm.d1
d "atm":7,64;512 /users/gus/atm_7.d1 f
d "atm":7,64;512 /users/gus/atm_7.d2 f
d "atm":7,64;512 /users/gus/atm_7.d3 f
d "atm":7,64;512 /users/gus/atm_7.d4 f
d "atm":7,64;512 /users/gus/atm_7.d5 f
d "atm":7,64;512 /users/gus/atm_7.d6 f
d "atm":7,64;512 /users/gus/atm_7.d7
b /users/gus/atm.b1
DB-7: OpenEdge Database Performance Tuning

15. 8: Move Data Extents to Striped Array
d "Schema Area" /users/gus/atm.d1
d "atm":7,64;512 /array/atm_7.d1 f
d "atm":7,64;512 /array/atm_7.d2 f
d "atm":7,64;512 /array/atm_7.d3 f
d "atm":7,64;512 /array/atm_7.d4 f
d "atm":7,64;512 /array/atm_7.d5 f
d "atm":7,64;512 /array/atm_7.d6 f
d "atm":7,64;512 /array/atm_7.d7
b /users/gus/atm.b1
DB-7: OpenEdge Database Performance Tuning

16. 9: BI Log On Separate Disk
d "Schema Area" /users/gus/atm.d1
d "atm":7,64;512 /array/atm_7.d1 f
d "atm":7,64;512 /array/atm_7.d2 f
d "atm":7,64;512 /array/atm_7.d3 f
d "atm":7,64;512 /array/atm_7.d4 f
d "atm":7,64;512 /array/atm_7.d5 f
d "atm":7,64;512 /array/atm_7.d6 f
d "atm":7,64;512 /array/atm_7.d7
b /bidisk/atm.b1
DB-7: OpenEdge Database Performance Tuning

17. Can you predict the results ?
DB-7: OpenEdge Database Performance Tuning

18. Now Our Results Are
DB-7: OpenEdge Database Performance Tuning

19. Effect of Tuning -spin
DB-7: OpenEdge Database Performance Tuning

20. Effect of Tuning -B
DB-7: OpenEdge Database Performance Tuning

21. Disk Layout
DB-7: OpenEdge Database Performance Tuning

22. About disks Inexpensive !! One drive can do only one thing at a time
Many smaller drives better than one large
15,000 rpm drives
SCSI still better than SATA II
Desktop drives rated 8 hours on, 16 off
Avoid cheesy controllers
Spares
DB-7: OpenEdge Database Performance Tuning

23. Multiple Disk Drives
DB-7: OpenEdge Database Performance Tuning

24. Stripe and Mirror
DB-7: OpenEdge Database Performance Tuning

25. Put BI Log on own disk
DB-7: OpenEdge Database Performance Tuning

26. Use Type II Data Areas
DB-7: OpenEdge Database Performance Tuning

27. Type I vs Type II Areas
DB-7: OpenEdge Database Performance Tuning

28. Esoterica
DB-7: OpenEdge Database Performance Tuning

29. Networking Raise message size (-Mm) to 16k Use Gigabit Ethernet
Configure Ethernet for FDX
Multiple brokers
One for 4GL, one for SQL
Others
Raise max servers (-Mn) and (-Mpb)
Lower clients per server (-Ma)
DB-7: OpenEdge Database Performance Tuning

30. Temporary files (-T) Local drives, not on network
Spread users over multiple disks
DB-7: OpenEdge Database Performance Tuning

31. Use Shared Procedure Libraries
One copy of r-code for many users
Use saved memory for other things
like higher -B
All sharers have to be on same machine
Don’t need on client machines
DB-7: OpenEdge Database Performance Tuning

32. Creating Records Template holds default column values
Creating a record makes a copy of template
CREATE cust
Fill in all column values immediately
Use one ASSIGN
Avoids an update later
Avoids fragmentation if default record is very small
DB-7: OpenEdge Database Performance Tuning

33. Linux File Systems ReiserFS results wildly erratic - don’t use !
DB-7: OpenEdge Database Performance Tuning

34. Other filesystems Operating system File system Solaris VxFS or UFS AIX
JFS or JFS2
HP-UX
NOT HFS
Windoze
NTFS
Linux
ext3, XFS, JFS
DB-7: OpenEdge Database Performance Tuning

35. Windows Tips (part 1) Remove crapware Turn off Black screensaver only
use Ad-Aware or Spybot S&D
use Firefox, NOT IE
Turn off
services you don’t need
startup items you don’t need
Black screensaver only
Get rid of Office (at least indexer)
DB-7: OpenEdge Database Performance Tuning

36. Windows Tips (part 2) NTFS filesystem Increase NTFS cluster size
Never FAT-32 or FAT-16
Increase NTFS cluster size
format <drive>:/fs:ntfs /A:8k
Turn off
short filenames
file sharing
virus scanner !
all GUI decorations
“Maximize Throughput for Network Applications”
DB-7: OpenEdge Database Performance Tuning

37. SQL Tips Add more indexes Run UPDATE STATISTICS
Use ODBC and JDBC API’s well
See DataDirect.com/developer for technical papers
Upgrade to 10.1
DB-7: OpenEdge Database Performance Tuning

38. More Esoterica Buy more memory - cheapest way to improve
Use 64-bit OpenEdge
Mount filesystems with noatime
Lock shared memory (-pinshm)
Use “deadline” i/o scheduler on Linux
We like 3ware controllers for mid-size boxen
Set shmmax to 134,217,728
DB-7: OpenEdge Database Performance Tuning

39. Summary Getting good database performance is easy
DB-7: OpenEdge Database Performance Tuning

40. More info My tuning guide on Conference CD PEG (www.peg.com)
Dan Foreman’s guides (info at expo)
Related sessions:
COMP–12: Load/Performance Testing Tools and Techniques
DB–2: Tuning OpenEdge SQL: Boosting Your SQL Application Performance
DB–5: OpenEdge Database Performance Made Easy
DB–8: Highly Parallel Dump and Load
DB–9: Pick an Index, Any Index...
DB-7: OpenEdge Database Performance Tuning

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DB-7: OpenEdge Database Performance Tuning

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