Database Analyzer 
The Database Analyzer tool for bottleneck analysis is also available in the Performance user menu of the DBA Cockpit. When the SAP system is started, the Database Analyzer starts to collect data. The Database Analyzer generates log files that are saved to the respective database server.
Procedure
Open the DBA Cockpit (transaction DBACOCKPIT) and select 
Performance 
Database Analyzer 
.
Result
The following user menus are available:
Starting/Stopping the Database Analyzer
When the SAP system or the liveCache starts up, the Database Analyzer is automatically started for the system's Basis database. With other systems, you need to explicitly start the Database Analyzer. The Database Analyzer must always be activated. The default collection interval for the performance data is 900 seconds.
If necessary, you can start or stop the Database Analyzer explicitly with the Bottlenecks user menu.
For liveCache you have the option of setting, via Automatic Monitoring, whether the Database Analyzer should always be activated or not.
More Information
Database/liveCache Alert Monitor, Database Analyzer
Database Analyzer documentation
Database Analyzer, Database Analyzer Log Files