Performance Tuning Siebel Software on the Sun Platform

12 Appendix C: Oracle statspack Report
This is one of the Oracle statspack reports collected during the one-hour steady state
of the test. This report provides an efficient way to identify where the time is spent inside
the Oracle database during the <strong>Siebel</strong> tests.
STATSPACK report for
DB Name DB Id Instance Inst Num Release Cluster Host
------------ ----------- ------------ -------- ----------- ------- ------------
ORAMST 3597051609 oramst 1 9.2.0.2.0 NO siebdb
Snap Id Snap Time Sessions Curs/Sess Comment
------- ------------------ -------- --------- -------------------
Begin Snap: 7 14-Aug-04 00:29:10 1,043 57.2 5000-and-server-use
End Snap: 8 14-Aug-04 01:52:31 639 77.8 5000-and-server-use
Elapsed:
83.35 (mins)
Cache Sizes (end)
~~~~~~~~~~~~~~~~~
Buffer Cache: 2,912M Std Block Size: 8K
Shared Pool Size: 480M Log Buffer: 10,240K
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
--------------- ---------------
Redo size: 874,784.17 7,640.12
Logical reads: 95,274.57 832.10
Block changes: 5,344.32 46.68
Physical reads: 1,632.28 14.26
Physical writes: 632.79 5.53
User calls: 3,171.71 27.70
Parses: 1,243.43 10.86
Hard parses: 0.10 0.00
Sorts: 385.85 3.37
Logons: 0.92 0.01
Executes: 1,662.82 14.52
Transactions: 114.50
% Blocks changed per Read: 5.61 Recursive Call %: 22.22
Rollback per transaction %: 0.22 Rows per Sort: 18.68
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 99.99 Redo NoWait %: 100.00
Buffer Hit %: 98.64 In-memory Sort %: 100.00
Library Hit %: 100.02 Soft Parse %: 99.99
Execute to Parse %: 25.22 Latch Hit %: 99.95
Parse CPU to Parse Elapsd %: 95.76 % Non-Parse CPU: 97.30
Shared Pool Statistics Begin End
------ ------
Memory Usage %: 67.68 68.34
% SQL with executions>1: 37.08 33.60
% Memory for SQL w/exec>1: 62.79 58.60
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
-------------------------------------------- ------------ ----------- --------
CPU time 11,550 72.04
log file sync 573,210 2,143 13.37
direct path read 280,947 627 3.91
direct path write 154,781 533 3.32
<strong>Performance</strong> <strong>Tuning</strong> <strong>Siebel</strong> <strong>Software</strong> on the Sun Platform Page 76