How do I view the “Extended metrics” for a Node.js App in Application Insights

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Follow these steps:

In the Azure portal, navigate to your Application Insights resource. under the Investigate section, select Metrics Explorer. in the Metrics Explorer, click on the Add metric button. This will open a panel on the right side. in the panel, expand the Node.js Extended Metrics namespace to see the available extended metrics. You should see metrics like % CPU Time in GC, Event Loop Ticks, Heap Used, and Non-Heap Used. Select the metrics you want to view by clicking on the checkbox next to each metric name

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