Profiling
What is profiling
Profiling is a form of dynamic program analysis that measures, for example, the space (memory) or time complexity of a program, the usage of particular instructions, or the frequency and duration of function calls. In mose cases, profiling information serves to aid program optimization. 1
Common Pattern
Flame Graph
Flame graphs are a visulization of profiled software, allowing the most frequent code-paths to be identified quickly and accurately. They can be generated using open-source software to create interactive SVGs of flame graph.3
The x-axis of flame graph is stack profile population, and the y-axis is stack depth, counting from zero at the bottom. Each rectangle represents a stack frame. The wider a frame is, the more often it was present in the stacks.
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