The Real-Time Chart pane displays a watch item's response time against time, and it continuously updated as a watch item runs manually or automatically.
(From Left to right)
- More Data - A drop-down will appear, allowing the addition of 10, 100, or 1000 more data points to add to the real-time chart. This will increase the maximum data points value (See "Legend" section below).
- Less Data - A drop-down will appear, allowing the subtraction of 10, 100, or 1000 more data points to subtract from the real-time chart. This will decrease the maximum data points value (See "Legend" section below).
- Copy to clipboard - A drop-down will appear, offering different options to copy the chart to the Window clipboard.
- Gallery - A drop-down will appear, offering different chart types to display the data
- Vertical Grid - Toggles the chart vertical grid on/off
- Horizontal Grid - Toggles the chart horizontal grid on/off
- Legend Box - Toggles the legend box on/off. By default, the legend box is off when a single watch item is charted, and on when multiple watch items are charted.
- Data Editor - Toggles the data editor on/off.
- Properties - Opens the chart properties dialog to customize the appearance of the chart. Separate help for the chart properties dialog is available by clicking the "Help" button in the chart properties dialog.
- 3D/2D - Toggles the chart view between 3D and 2D.
- Rotate - Opens the chart properties dialog to customize the rotation view of the chart.
- Z-Clustered - Lets you display series in different rows along the z-axis.
- Zoom - Allows zooming of the chart. Click the "Zoom" button, then click-drag the area of the chart for zooming:
To un-zoom, click the "Zoom" button again.
- Print Preview - Displays the print preview dialog
- Print - Prints the chart
- Tools - A drop-down will appear, with the options:
1. Values Legend - (Not available with Series X-Axis Label)
2. Series Legend
3. Data Editor
- X-Axis Labels - A drop-down will appear with four different X-Axis label types:
The chart legend displays:
- The name of the watch item(s) being charted
- The number of available data points (shown as dp:#) available for charting.
- The number of maximum data points (shown as mp:#) possible for charting.
The number of available data points is less than or equal to the maximum number of times that a watch item has been run. If the maximum data points possible is greater than the available data points, then only the available data points will be charted.
When charting multiple watch items, the available data points will be set by the watch item with the lowest available data points. For example, there are three watch items to display:
- site1, dp:25
- site2, dp:9500
- site3, dp:100
The available data points for the chart displaying these three watch items will show no more than 25 data points. This number may change as data points are added.
When a single watch item is charted, two chart constant lines are displayed:
- Max Response Time - the maximum amount of time that a watch item must respond or the watch item will fail with a timeout.
- Average - the overall average response time. This average is for all data collected and not representative of just the data displayed in the chart.
Performance and User Experience
When initially loaded, the Real-Time Chart will load historical data into the chart. This may affect performance as the historical data is loaded.
When switching between Watch Items, the chart data is reloaded. Switching back to a Watch Item that was previously loaded, will always reload the historical data and not cache it in memory. This may affect performance, but will ensure that the freshest data is available.
To change overall performance with regard to charts, refer to the preferences settings for charts.