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# View and customize online monitor graphs

This topic describes how to open monitor graphs in the Online Dashboard, and customize their display.

Before you begin, the relevant monitoring environments must be configured. For details, see Configure monitors.

For details on the available graphs, see Monitor and graph types.

In this topic:

## Adding monitor graphs to the display

By default, Controller displays the following graphs in the graph display area of the Run tab:

- Runtime Graphs > Running Vusers

- Transaction Graphs > Transaction Response Time

- Web Resource Graphs > Throughput

- Web Resource Graphs > Hits per Second

To add additional graphs, expand the category nodes in the Graphs tree on the left of the Run tab. Select a graph's checkbox to add it to the graph display area on the right.

The graph display area can contain up to 9 graphs at the same time.

Tip: If the Graphs tree is not displayed, click the Expand arrow (>) on the side of the graph display area. To hide the graph tree, click the Collapse arrow (<) on the side of the graph tree.

## Managing the Graphs tree

Tip: Graph names that are displayed in purple contain data. To only see the graphs that contain measurements, switch the filter at the top of the tree from All to With Data. You can also search for a specific graph.

Right-click a checked graph in the Graphs tree, and select one of the following menu commands:

Command | Description
--- | ---
Settings | Configure what a graph displays. For details, see Configuring graphs.
Duplicate | Make a copy of a graph.
Delete | After duplicating a graph, click to delete the copy. You cannot delete an original, out-of-the-box graph.
Details | Show the selected graph in full-screen mode. Click the Minimize graph button — to return to the multi-graph view.
Rename | Rename a graph.

## Managing the graph display area

In the graph display area, click the Configuration button. The graph menu can include the following menu commands:

Command | Description
--- | ---
Settings | Configure the graph settings. For details, see Configuring graphs.
Duplicate | Make a copy of a graph. To rename a duplicated graph, click the duplicated graph's title and type the new name.
Delete | Enabled only for duplicated graphs. After duplicating a graph, click to delete the copy. You cannot delete an original, out-of-the-box graph.
Pause / Continue | Select Pause to pause a graph during a scenario run. To resume, select Continue. When resumed, the graph displays the data for the paused period as well.
Merge Graphs | Combine the results of two graphs from the same scenario into a single graph. The merging enables you to compare several different measurements at once. Select Merge Graphs, and then drag the current graph on top of another graph. A new graph is created, containing the measurements of both graphs.
Export to HTML | Create an HTML version of the selected graph for offline viewing at a later stage. Note that Controller generates a snapshot image of the selected graph. For optimal results, enlarge or maximize a graph, and then export it to HTML. To export all the graphs in the display area, click the Export Graphs to HTML button in the upper right corner. (This is enabled when you are showing multiple graphs, and not one graph expanded.)
Add Measurements | When there are measurements available to add to a graph, this enables you to select measurements to display. Note that you can also click on the Add Measurements button inside the graph itself.

Tip: To reorganize the graph display area, drag and drop graphs to the required location.

## Configuring graphs

You can customize the type of graph display, and what to display on the x-axis and y-axis.

- To configure a selected graph, click Settings in the graph's menu.

- To rename a graph, click on its title.

- To configure all graphs, click the Graphs Settings button .

In the right pane of the graph display area, define the following:

Option | Description
--- | ---
Graph Time | Indicates the scale for a graph's x-axis when it is time-based. A graph can show 60 to 3600 seconds of activity. To see the graph in greater detail, decrease the graph time. To view the performance over a longer period of time, increase the graph time. The available graph times are Whole Load Test, Last 60 seconds, Last 180 Seconds, Last 600 Seconds, and Last 3600 seconds.
Time | Specifies how the graph displays the time (in seconds) on the x-axis: Don't Show. Instructs Controller not to display values for the x-axis. Clock Time. Displays the absolute time, based on the system clock. Relative to Scenario Start. Displays the time relative to the beginning of the scenario. Note: If no step is running, the clock time is displayed. The time display can be set only for all graphs globally, not per individual graph.
Show disruption events | Shows an indicator on the graph timeline of disruption events occurring in the scenario. For details, see Chaos testing for scenarios.
Displayed Measurements Limit | (Graphs Settings only) The maximum number of measurements visible during the scenario run. By default, the limit is set to 20. A higher limit may impact performance.
Description | Displays the graph's default description.

Click Save to apply your changes.

## Viewing graph measurements

To expand a graph and show its measurements, do one of the following:

- Right-click a graph in the Graphs tree, and click Details.

- From the graph display area, double-click a graph, or select a graph and click the Maximize graph button. To restore the previous view, double-click the maximized graph or click the Minimize graph button.

Note: The graphs display information only once the scenario starts running. No data is received or recorded when the scenario is not running.

You can zoom in on a graph, which changes the scale of the graph's axes to show the measurements in greater detail. You can also select a specific area of a graph to zoom in on.

- To zoom in on a graph, hold the Shift key and click the graph.
- To zoom out, hold the Alt key and click the graph.
- To zoom in on a specific area of a graph, hold the Shift key, and click and drag the mouse to select the relevant area of the graph.

To show, highlight, or hide a measurement in a graph, select the checkbox to the left of the measurement in the graph legend. All measurements are shown by default.

## Configuring measurement settings

You can customize the appearance and scale of measurements in a graph.

To customize appearance and scale:

1. Expand the graph to display the legend containing the measurements.

2. Select one or more of the measurements in the legend.

3. Right-click and select an option from the menu.

   The following menu options are available:

   Option | Description
   --- | ---
   Settings | You can modify the following: Color. Click the dropdown to select a color to assign to the selected measurement. (This option is not available when more than one measurement is selected.) Automatic. Select the Automatic checkbox to enable Controller to scale the selected measurements automatically. Controller calculates the best ratio for displaying them in the graph. (This option is not available for some graphs.) Scale. Manually define the relationship between the y-axis and the actual value of the selected measurements. For example, a scale of 1 indicates that the measurement's value is the value of the y-axis. If you select a scale of 10, you must multiply the y-axis value by 10 to obtain the true value of the measurement. Click Save to apply your changes.
   Show Only Selected | The graph displays only the currently selected measurements.
   Show/Hide | Show or hide the selected measurements.
   Keep the Legend Sorted | If you select this option, the order of measurements changes in real time based on the selected column. For example, if you click the Max column to sort by the maximum value, the measurements are always listed from the highest to the lowest, based on their Max column value.

## See also

- Online monitor graphs
- Monitor and graph types

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