An interactive concept flow for profile before rewriting the slow path, from its assumptions through the main operation and boundary checks.
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readyProfiling attributes resource use to parts of a running program; benchmarking compares defined workloads under controlled conditions. A useful optimization starts with a hypothesis about the bottleneck and gathers evidence at the level where the cost occurs.
Use the stages in order to explain profile before rewriting the slow path. Each stage makes one assumption visible: what the operation promises, what representation it uses, how state changes, which boundary can invalidate a shortcut, and what evidence confirms the result.
For a worked explanation, continue to the topic article and execution trace.
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