Beginning Oracle Database 11g Administration From Novice to Professional

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CHAPTER 16 INSTANCE TUNING
documentation on Statspack because it is not documented in the Oracle Database 10g
and 11g manuals. A useful introduction to Statspack as well as installation instructions
can be found in in the folder.
The Statspack report contains a wealth of other information that can help you diagnose
and solve your performance problem. In Listing 16-2, you saw the first page of a
sample Statspack report, of which the most interesting section was the “Top 5 Timed
Events” section. Here is a list of other interesting sections of the Statspack report:
reads.
dynamic performance
view.
in the database.
tables and indexes have the most logical reads and physical reads. They are
available in only level 7 snapshots. Refer to Chapter 21 of Oracle Database 9i Performance
Tuning Guide and Reference for information on the different snapshot
levels and how to change them.
Summary
Here is a short summary of the concepts touched on in this chapter:
systematic method should be used for identifying the root cause.
analyze, solve, and implement.
spending its time. This is summarized by the “Top 5 Timed Events” section of the
Statspack report.