Layout Tab Basic Features

This section describes the basic features available in the Layout Tab area of the Instance Monitoring page.

Default Layout

For user convenience, the Instance Monitoring page provides a Default Layout.

Default Layout Application Example

The list of monitoring metrics included in the Default Layout is as follows.

• [System] CPU Usage

• [Session] Session Count (Running, Active, Inactive)

• [Session] Long Running Session Count

• [Session] Lock Waiter Session Count

• [System] TPS

• [Stat] Buffer Cache Hit

• [System] TSM Usage (Total)

• [System] PGA Usage (Total)

• [Stat] Redo Log Size

• [Stat] Physical Reads

• [Stat] Logical Reads

• [Stat] Hard Parse Count

Auto Refresh

When the users click the settings icon in the upper right corner of the Layout Tab area, the users can set whether to enable Auto Refresh and the interval in seconds.

Add Layout Tab

When the users click the Add Tab icon at the top of the Layout Tab area, a new Layout Tab is added.

Users can apply an existing Layout or a newly created Layout to the new tab.

Save Layout

When the users click the Save button at the top of the Layout Tab area, the current Layout changes applied to the tab are saved.

This feature is only available for layout created by the user. Common users without Custom permissions cannot use this feature.

For the Default layout, the Save function is not available, so the button is disabled as shown below.

Undo Layout

When the users click the Cancel button at the top of the layout Tab area, the Layout applied to the current tab is restored to its previous state (the last saved state). Changes made are not saved.

Instanced Deactivation

Clicking a specific instance name in the instance list at the top of the layout Tab area disables the corresponding instance in the current Lathe layout Tab. Clicking the instance name again restores the instance graph to the chart.