gh-138122: Add inverted flamegraph #142288
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Introduce an inverted flamegraph view that aggregates all leaf nodes. In a standard flamegraph, if a hot function is called from multiple locations, it appears multiple times as separate leaf nodes. In the inverted flamegraph, all occurrences of the same leaf function are merged into a single aggregated node, showing the total hotness of that function in one place. In this inverted view, the children of each aggregated hot function represent its callers, the functions that led to that leaf in the original call tree.
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Introduce an inverted flamegraph view that aggregates all leaf nodes. In a standard flamegraph, if a hot function is called from multiple locations, it appears multiple times as separate leaf nodes. In the inverted flamegraph, all occurrences of the same leaf function are merged into a single aggregated node, showing the total hotness of that function in one place.
In this inverted view, the children of each aggregated hot function represent its callers, the functions that led to that leaf in the original call tree.
Standard flamegraph:
Inverted flame graph:
