1. Statspack Data Calculation Sheet For Oracle 8i,9i,10g,…. Developed By V. P. Mohammed Yacoob.B.Tech Software Engineer, AppLabs Technologies, India E-mail: yacoobit@yahoo.co.in

2. About Me Working as a Performance Engineer at AppLabs Technologies – India Worked on more than 3 Engineering process

3. About Statspack Oracle Database has an in build feature called Statspack, Which will give performance statistics of the database. Statspack will generate the report with the file name.lst extention

4. About Snapshot How to take snapshot …… answer 1) Just before start of the test execution 2) Mid of the test execution 3) End of the test execution

5. How it will be ? NAME SNAP_ID Date/Time --------- ---------- ------------------- XXXXXX 120 27.03.2007:07:41:12 XXXXXX 121 28.03.2007:06:40:30 XXXXXX 117 04.12.2006:19:29:06 XXXXXX 118 04.12.2006:19:31:06 XXXXXX 115 04.12.2006:19:25:06 XXXXXX 119 04.12.2006:19:33:06 XXXXXX 113 04.12.2006:19:21:06 XXXXXX 114 04.12.2006:19:23:06 XXXXXX 116 04.12.2006:19:27:06

6. Report How to collect list file ? The following command will collect the statistic report with reference to snap_id @$ORACLE_HOME/rdbms/admin/spreport Reports will generate as like sp_119_120.lst

7. Yacoob –SP - Data Calculation Report

8. Yacoob – SP – Data Calculation Report -- Helpful for beginners Features -- Time conversion -- Total Response Time Graph -- Total Wait Time -- Physical Reads statistic

9. -- graph (Total Response/ idle wait Time )

10. Physical Read Statistics

11. -- Response Time It can describe as Service Time + Wait Time Where Service Time = Time spent on the CPU. Wait Time = The sum of time spent on Wait Event Note: –Service time is compressed of time spent on the CPU for parsing, Recursive CPU usage (for Recursive PL/SQL and Recursive SQL) and CPU used for execution of SQL statements (CPU other)