Flame Graph

Flame graphs are a visualization tool used to understand where a program spends its time, especially useful for performance profiling.

They help quickly spot hot paths in code: functions or routines that consume the most CPU or other resources.

See also Profiling PHP in production at scale, Flamboyant Flamegraphs, Flamegraphs with xDebug and How to generate PHP Flamegraphs.

Related : PHP Profiler, Performance, Monitoring, Benchmarking, Trace, Treemap

Related packages : wikimedia/arc-lamp, noisebynorthwest/php-spx, reliforp/reli-prof