Line Profiler

Noun · Development

Definitions

  1. A profiling tool that measures execution time or hit count for each individual line of source code, rather than at the function level. Python's `line_profiler` (kernprof) and Ruby's `rblineprof` are common examples, useful for pinpointing exactly which line in a hot function is the bottleneck.

    In plain English: A tool that shows how long each individual line of code takes to run, so you can find the exact slow spot in a program.

    Example: "The function-level profiler said the parser was slow, but the line profiler showed 90% of the time was spent on a single regex match."

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