I am using Visual Studio 2019 Professional.
What are the meaning of the flame icons next to Object Type name in the Snapshot pane?
The icons are displayed, when in the lower part of the Snapshot pane, I select Referenced Types.
I tried hovering the mouse pointer over the icon, no tool tip was displayed.
This feature is to highlight execution hot paths in the profiler call tree, named Expand hot path. Click on it and it will automatically expand the complete call path (hot path).
The hot path is the most expensive call path based on sample count (sampling analysis) or execution time (instrumentation analysis). The hot path shows the branch of the application call tree that has the highest inclusion sample or inclusion time.
For details, please refer to: https://devblogs.microsoft.com/visualstudio/improving-visual-studio-performance-with-the-new-instrumentation-tool/