How do I find the AWR report in Oracle 11g?
To generate an AWR Compare Periods report on a specific database instance using the command-line interface:
- At the SQL prompt, enter: @$ORACLE_HOME/rdbms/admin/awrddrpi.sql.
- Specify whether you want an HTML or a text report: Enter value for report_type: text.
What is AWR Report in Oracle 11g?
Automatic Workload Repository report or AWR report collects, processes, and maintains performance statistics for problem detection and self-tuning purposes. This gathered data is stored both in memory and in the database and is displayed in both reports and views.
What should be checked in Oracle AWR report?
AWR Report – Load Profile
- DB Time(s): Sessions elapsed time in the database.
- DB CPU(s): Sessions elapsed time in the CPU.
- Redo Size: Redo size ( byte ) between two snapshot.
- Logical Reads: Logical read count in the database.
- Block Changes: Block changes count between two snapshot.
What does AWR report contains?
What is AWR? The AWR provides a set of tables into which snapshots of system statistics are stored. Generally these snapshots are taken on an hourly basis and include wait interface statistics, top SQL, memory, and I/O information that is cumulative in nature up to the time of the capture.
What is AWR SQL report?
You have option to fetch the specific report for a particular SQL Query for check the performance of the SQL Query.
Which two things should a DBA look for in AWR report?
Look at the Host CPU and Instance CPU sections. The key things to look for are the values “%Idle” in the “Host CPU” section and “%Total CPU” in the “Instance CPU” section. execution plans, especially if accompanied with high (buffer) gets.
How is Iops AWR report calculated?
To find IOPS and MB/sec I/O-related metrics in the AWR report, look for the physical read total IO requests, physical write total IO requests, physical read total bytes, and physical write total bytes metrics. These metrics provide read IOPS, write IOPS, read bandwidth, and write bandwidth.
How to generate AWR report in Oracle?
The Automatic Workload Repository (AWR) collects and maintains statistics of the database. We can generate awr report for a particular time frame in the past using the script awrrpt.sql ( located under $ORACLE_HOME/rdbms/admin)
How does ADDM use AWR?
Diagnoses the root causes of performance problems Because AWR is a repository of historical performance data, ADDM can analyze performance issues after the event, often saving time and resources in reproducing a problem. For information about the AWR, see “Overview of the Automatic Workload Repository”.
What is included in the Oracle Database Resource Manager?
Includes sections on Oracle Scheduler, Oracle Database Resource Manager, Oracle Restart, and distributed computing. Download As… Provides reference information about database initialization parameters, static data dictionary views, dynamic performance views, database limits, and SQL scripts that are part of the Oracle Database.
What is the support documentation for Oracle Database?
Supporting documentation treats advanced topics. In general, the 2 Day + books refer you to these topics when needed. Describes Oracle Database architecture and essential topics for database administrators and developers. Download As… Describes how to create, configure, and administer an Oracle database.