To access the real-time server performance view, click the cluster name in the upper left corner and select the Performance tab.
The Performance tab displays various stats:
Read & Write
Displays the collections with the most activities as reported
The collections correspond to a given moment in the charts; i.e. as you move over the charts, the corresponding collections are highlighted/displayed in the table.
Displays the slowest operations as reported by db.currentOp(). The operations correspond to a given moment in the charts; i.e. as you move over the charts, the corresponding slowest operations are displayed in the table. To view the details of a slow operation or kill the operation, click on the operation.
You can kill slow operations from the Performance Tab.
The Pause button above the graph display pauses the update of the displays only. Pausing the performance tab does not impact the collection of the underlying data. To restart the display updates, click Play.
Next to the Pause button is a clock which shows the current time while the graphs are updating. If the display is paused, the clock shows the time at which the pause began.
The Performance tab is not available if you are connected to a Data Lake.