Miscellaneous

What is Statspack?

What is Statspack?

Statspack is a performance tuning tool provided by Oracle with the Oracle9i database distribution. With minimal effort, it can be installed on any Oracle9i database to quickly gather detailed analysis of the performance of that database instance.

What do Statspack reports look for?

In a nutshell, the most important areas to read in any STATSPACK report are the top-5 timed events and the statistics for the major database events. The I/O statistics are also very useful.

What is the use of Statspack in Oracle?

The Statspack package is a set of SQL, PL/SQL, and SQL*Plus scripts that allow the collection, automation, storage, and viewing of performance data. Statspack stores the performance statistics permanently in Oracle tables, which can later be used for reporting and analysis.

How do I run Statspack in Oracle?

Oracle Statspack

  1. Navigate to the $ORACLE_HOME/rdbms/admin directory as follows:
  2. Start the Statspack install script, spcreate.sql , as follows:
  3. Enter a password for the PERFSTAT user when prompted.
  4. Enter the default tablespace (tools) for the PERFSTAT user when prompted.

How do I install Statspack?

The following is a step-by-step guide to the process of installing Oracle Statspack on a UNIX system. Enter a password for the PERFSTAT user when prompted. Enter the default tablespace (tools) for the PERFSTAT user when prompted. Enter the temporary tablespace (temp) for the PERFSTAT user when prompted.

How do I create a Statisticspack report?

Generating Statspack reports

  1. In a SQL client, log in to the Oracle DB with the PERFSTAT account.
  2. Create a snapshot using either of the following techniques: Create a Statspack snapshot manually.
  3. View the snapshots using the following query:
  4. Run the Amazon RDS procedure rdsadmin.
  5. Monitor the output for errors.
  6. (Optional)

How do I find the AWR report in Oracle 11g?

To generate an AWR Compare Periods report for Oracle RAC on the local database instance using the command-line interface:

  1. At the SQL prompt, enter: @$ORACLE_HOME/rdbms/admin/awrgdrpt.sql.
  2. Specify whether you want an HTML or a text report: Enter value for report_type: html.

How do you analyze AWR?

The main sections in an AWR report include:

  1. Report Summary: This gives an overall summary of the instance during the snapshot period, and it contains important aggregate summary information.
  2. Cache Sizes (end): This shows the size of each SGA region after AMM has changed them.

How do I enable Statspack in RDS?

Using Oracle Statspack on Amazon RDS

  1. If the perfstat user exists, delete perfstat by running the following command:
  2. Add the Statspack option to the DB option group.
  3. When you add the Statspack option, Amazon RDS instances running Oracle automatically install Statspack.

How do I enable Statspack?

Installing the Statspack

  1. Navigate to the $ORACLE_HOME/rdbms/admin directory as follows:
  2. Start the Statspack install script, spcreate.sql , as follows:
  3. Enter a password for the PERFSTAT user when prompted.
  4. Enter the default tablespace (tools) for the PERFSTAT user when prompted.

How do I uninstall Oracle Statspack?

If you decide you do not need Statspack installed any more you can remove/uninstall Statspack with ORACLE_HOME/rdbms/admin/spdrop. sql The spdrop. sql needs be dropped by a user with SYSDBA. Remember to remove any jobs you might have created to manage the Statspack environment.

How do I manually create AWR in Oracle?

To generate an AWR Compare Periods report for Oracle RAC on a specific database using the command-line interface:

  1. At the SQL prompt, enter: @$ORACLE_HOME/rdbms/admin/awrgdrpi.sql.
  2. Specify whether you want an HTML or a text report: Enter value for report_type: html.

What is statspack in Standart edition?

Statspack is like AWR report and set of Oracle packages. You can take statspack report with snapshots of performance-related data that occurred between any two snapshots. To install statspack in Standart edition, execute spcreate.sql under $ORACLE_HOME/rdbms/admin directory.

Does statspack still exist in 11g?

I posted earlier on Oracle Management Packs and associated licensing here, by the way. But Statspack is still available and still runs fine if you choose to install it. As a matter of fact, it still exists in 11gR1 and has in fact been updated to accommodate some of the data dictionary changes in 11g.

What’s new in Oracle 10g statspack?

Oracle 10g came with a new version of Statspack – they called it AWR, but basically it’s the same old estat/bstat report. There are of course a few new things in it and the snapshot process is automatically configured to collect data once per hour when you create a 10g instance.

How many logical read statistics does statspack report?

Row lock waits Although Statspack captures all segment statistics, it reports only the following statistics that exceed one of the predefined threshold parameters: Number of logical reads on the segment. The default is 10,000. Number of physical reads on the segment.

https://www.youtube.com/watch?v=92l0ERQS5oo