FlameGraph - Stack trace visualizer
Flame graphs are a visualization of hierarchical data, created to visualize stack traces of profiled software so that the most frequent code-paths to be identified quickly and accurately. It basically visualizes a collection of stack traces (aka call stacks), shown as an adjacency diagram with an inverted icicle layout. Flame graphs are commonly used to visualize CPU profiler output, where stack traces are collected using sampling.
http://www.brendangregg.com/flamegraphs.html
https://github.com/brendangregg/FlameGraph
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