That is exactly what profilers do. Xcode gives you a heatmap of what percentage ... | Hacker News

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		WanderPanda on April 4, 2022 \| parent \| context \| favorite \| on: Learning math? Think like a cartoonist That is exactly what profilers do. Xcode gives you a heatmap of what percentage of the execution time has been spent in a particular function (at least in ~2013 when I used this function the last time)

xg15 on April 4, 2022 [–]

True, but I haven't seen profiling results actually applied back to the actual code file, line-by-line.

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