ServiceNow Performance dashboards

View a wide range of platform performance metrics for your instance and for the machine on which your instance is running. The ServiceNow Performance dashboards provide central access to different graph sets for monitoring the performance of your instance.

Navigate to Performance Analytics > Dashboards. From the Dashboards list, select ServiceNow Performance.

Figure 1. ServiceNow Performance dashboards

The ServiceNow Performance dashboards feature time series graphs for analyzing system behavior and patterns over selected time periods. The dashboard interface provides:

• Aggregate summaries of time series graph data
• Graph overlay capability to compare two different data sources within a single graph
• Diagnostic event overlay on each graph to highlight performance anomalies
• Zoom controls to expand each graph and view time series details

The graph sets provide performance data for the following functional areas:

• Asynchronous Message Bus (AMB)
• Database
• Instance View
• MySQL Global Status
• ServiceNow Servlet
• Slow Pattern

Filter the data in each graph using different measurements, such as:

• Maximum and minimum values
• Means
• Medians

Customer Service and Support uses some of these graphs to troubleshoot performance issues or help you tune your system for maximum efficiency.

Table 1. ServiceNow Performance dashboards controls

Control	Description
Graph set	Graph controls: Graph collections for viewing performance in functional areas: AMB Database Instance View MySQL Global Status ServiceNow Servlet Slow Pattern Monitorable items: Name of the instance under evaluation. Timespan: Period over which the data is captured: 1 hour, 2 hours, 1 day, 7 days, or 30 days Compare with graph: Graph overlay feature that enables you to select a graph from a different data source and compare it to the current graph set.
Index suggestions icon	Index suggestions icon (). Opens the Suggested Indexes window, which provides links to index suggestions for slow queries. For details, see Review index suggestions for slow queries.
Display controls	Information tooltip: Provides details about the area on the graph that you point to. Refresh icon (): Refreshes the data in the graphs. Appears when you point to the upper-right corner of the page. Help icon (): Opens the documentation page for the graph set. Appears when you point to the right corner of a graph. Fullscreen icon (): Opens an enlarged view of the graph, which includes a legend that identifies the graph data. Appears when you point to the right corner of a graph. To zoom in on an area and view details over a smaller time, click and drag across a portion of the graph.
Show datatable	Show datatable icon (): Displays a table of data for each thread in the graph.
Diagnostic Events	Lists system events that occurred during the selected timespan. Provides controls for displaying diagnostic events on graphs.

To look for trends or patterns between different data sets, use the graph overlay feature. For example, you can overlay the Database Response graph over the ServiceNow System Overview graph to determine possible correlations.

To enable or disable the event overlay on the graph set, click Show on graphs. The event overlay is enabled when the switch is green. The following severity flags identify diagnostic events on the graphs:

• I: Information
• W: Warning
• E: Error

To limit the events that appear on the graphs, click the filter icon ().

• To see event information, point to an event in the graph.
• To access details on a particular event, click the event listed in the Diagnostic Events widget.