The Vancouver release is no longer supported. As such, the product documentation and release notes are provided for informational purposes only, and will not be updated.
You can view a wide range of platform performance metrics for your instance and for the
machine on which your instance is running. The ServiceNow Performance
dashboard provides central access to different graph sets for monitoring the performance of your
instance.
To open the ServiceNow Performance dashboard:
Navigate to Self-Service > Dashboards.
Search for the ServiceNow Performance dashboard.
Note:
Beginning in the San Diego release, the ServiceNow Performance homepage is
deprecated. After upgrading to the San Diego release, you can't edit the ServiceNow Performance homepage. You can Create a dashboard version of the
Performance homepage. By default,
new instances have ServiceNow Performance dashboards to replace the ServiceNow Performance homepage.
The ServiceNow Performance dashboard features time series graphs for
analyzing system behavior and patterns over selected time periods. The 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
Users must have an assigned pdb_user role to view performance metric graphs. For more
information, see Add existing reports to a
homepage
and Customize your homepage content.
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
You can also filter the data in each graph by 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.
ServiceNow Performance dashboard features
The ServiceNow Performance dashboard provides the following graph and
display controls.Figure 1. Performance dashboard UI elements
Table 1. ServiceNow Performance dashboard elements
Number
Description
1
Graph controls:
Graph set: Graph collections for viewing performance in
functional areas:
AMB, Database
ServiceNow®Discovery
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 list: Graph overlay feature that lets you
select a graph from a different data source and compare it to the current graph set.
2
Suggestion icon (): Opens the Suggested Indexes window, which provides links to index suggestions
that have been created for slow queries. For details, see Review index suggestions for slow queries.
3
Display controls:
Information tooltip: Provides details about the area on the graph that you point
to.
Documentation icon (): Opens the documentation page for the graph set. Appears when you point to the
right corner of a graph. Opens the documentation page for the graph set.
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.
4
Diagnostic Events widget: Lists system events that occurred during the selected
timespan. Provides controls for displaying diagnostic events on graphs.
Display and zoom controls
Fullscreen graph view
Click the fullscreen icon () to open an enlarged view of a graph. The full screen view includes a legend with
check boxes for controlling the data displayed in the graph. To disable the display of a data
item in a graph, clear its check box. On some graphs, you can also change the sort order of
certain metrics in the legend.
Zoom in on a selected area of the graph
Click and drag across a portion of the graph area to zoom in on that area and view details
over a smaller time interval. To return to the original view, click Reset
Zoom.
Figure 2. Zooming in a graph
Graph overlays
Use the graph overlay feature to look for trends or patterns between different data sets. For
example, you can overlay the Database Response graph over the ServiceNow
System Overview graph to determine possible correlations.
From the Compare with graph list, select a performance graph to overlay the current graph
set.
To remove the graph overlay, select None from the Compare with graph
list.
Figure 3. Graphs with legends
Diagnostic event overlays
Display controls for diagnostic events
Use the following features in the Diagnostic Events widget to control the diagnostic
events overlaid on graphs:
Show on graphs switch: Click to enable or disable the event
overlay on the graph set. 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
Filter: Click the filter icon () to limit the events that appear on the graphs. Clear the check boxes for events
that you don’t want displayed.
Clear filter: Click to reset the filter to its default state
(show all events).
Figure 4. Diagnostic events overlay
Diagnostic event information
If you enabled the diagnostic event display, point to an event in the graph to see its
information.
To open the Event Details page, click the event listed in the Diagnostic Events
widget.
Table 2. Event Details page
Field
Description
Name
Type of event.
Reported on
Date and time of event.
Detail
Additional information on the event, such as the type of plugin
activated.
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): Opens the Suggested Indexes window, which provides links to index suggestions
that have been created for slow queries. For details, see Review index suggestions for slow queries.
): Opens the documentation page for the graph set. Appears when you point to the
right corner of a graph. Opens the documentation page for the graph set.
) to open an enlarged view of a graph. The full screen view includes a legend with
check boxes for controlling the data displayed in the graph. To disable the display of a data
item in a graph, clear its check box. On some graphs, you can also change the sort order of
certain metrics in the legend.
) to limit the events that appear on the graphs. Clear the check boxes for events
that you don’t want displayed.
