Spikes or steps in the telemetry of your app can now be easily diagnosed.
When you use Application Insights Analytics to explore app metrics over time, sudden changes, such as spikes or dips, are highlighted. With one click, Smart Diagnostics will find a pattern (a series of data with common values) that correlates with the change, and explain the reason behind it.
After you’ve created a time chart that includes an unusual change, click a highlighted data point. Smart Diagnostics finds a filter pattern that explains the data discontinuity – it identifies the pattern in which the discrepancy occurs, isolates it, and displays the result with and without the filter.
Read more about it on the Azure blog.