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Don Burleson Blog 







STATSPACK for Oracle

Oracle Tips by Burleson Consulting
Don Burleson

The following is from the bestselling book Oracle 10g Grid & Real Application Clusters - Oracle10g Grid Computing with RAC.  You can order it directly and save 30% here:

For those who would like to investigate STATSPACK Oracle and the 10g AWR replace for STATSPACK, three informative books are available from Oracle Press:
  • Oracle High-performance Tuning with STATSPACK - Oracle Press, by Donald K. Burleson.

  • Oracle9i High-performance Tuning with STATSPACK - Oracle Press, by Donald K. Burleson.

  • Oracle10g Tuning - Rampant TechPress

The entire range of techniques and options available for trend identification using STATSPACK for Oracle are beyond the scope of this book.

We will concentrate here on examining STATSPACK reports that indicate trends in the behavior of the data buffer pools. Average data buffer hit ratios can be generated along two dimensions:

  • Average DBHR by day of the week

  • Average DBHR by hour of the day

Either of these reports will supply invaluable information for spotting usage trends in the Oracle database. Change occurs in the data buffers rapidly, and sometimes a long-term analysis will provide clues that point to processing problems within the database.

Almost every Oracle database exhibits patterns that are linked to regular processing schedules, called signatures. The following sections will plot the average data buffer hit ratio for an Oracle database over different intervals.

You might also enjoy my bestselling book "Creating a Self Tuning Oracle Database", by Rampant TechPress.  It is only $9.95 and all scripts in this tips can be immediately downloaded.



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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

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