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https://www.emacswiki.org/emacs/EmacsNativeProfiler
The ‘profiler’ library provides CPU & memory profiling for all Emacs functions.
Unlike ‘EmacsLispProfiler’ you do not have to specify which functions or packages you wish to profile (however ELP remains complementary as it records overall time taken, which includes time spent waiting for external processes to return, which is something that the native profiler will not report on).