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4.6 Server Tuning

This tool provides easy access to important server indicators as well as server statistics and an editor for database parameters.

images/tuning.png

The interface for this tool is very simple. First there is a toolbar with the following controlls.

Refresh
Refresh data from the database, will not read another value for charts.
Refresh rate
The interval between which to auto update data, observe that setting this too low could put a high load on a database server. This is also the sample interval for charts.
Change connection
Change the connection to monitor in the tuning tool.

There are several tabs in the window.

Overview
Displays an overview of dtabase statistics, shows the flow of data through the server in an intuitive way.
Charts
Charts containing important performance information from the database.
Wait events
Information and charts about wait events.
File I/O
Displays information about I/O separated by tablespace or datafile. You can select if you want to see average wait time, blocks for tablespace or datafile by using the combobox at the top of the charts.
Indicators
Important performance indicators.
Statistics
Raw statistic information from the server. The statistics is shown in two columns, the first one contain the actual value, the second show the change in the value since the last update.
Parameters
This tab displays the values of the parameters of the database. You can also use it to change the values by selecting a row and entering a new value at the bottom of the tab. After changes has been made you can apply or export these changes using the buttons in the toolbar at the top of the parameter editor.
images/pfileeditor.png
Display hidden parameters
TODO
Generate configuration file
Generate a p-file with the current changes (And original changes as well) into a memo editor(see memoeditor).
Apply changes to system
Apply changes made to the system.
Apply changes to session
Apply changes to the current session. Will only apply changes to the main connection and not any child sessions TOra might open for instance when statements are executed in the worksheet.
Drop changes
Drop the changes currently made to the parameters and revert to the current session settings.

Blocking locks
TODO.
Library cache
TODO.
Control files
TODO.
Options
List the options available in the database server.
Licenses
Display license information to the current database.