@epoz \- this & related topics come up a lot, but here is a perhaps more 
informative thread than many: <https://forum.nim-lang.org/t/5103> (though maybe 
you will fall asleep before reading all of it).

@PMunch, I think `hyperfine` leaves "on the table/floor" much opportunity for 
precision on the hottest caches path which I try to get at with 
[tim](https://github.com/c-blake/bu/blob/main/doc/tim.md). Might be worth a 
look. Also, it's only like a few screenfuls of Nim instead of however 6,000 
lines of Rust or whatever `hyperfine` is up to. So, you could `import` it (or 
`bu/emin`, `cligen/strUt.fmtUncertain`) and perhaps use the ideas for 
non-command-line timings as well. The CLI tool `tim` can do most of what 
`hyperfine` does except calculate ratios like "2.26X" (without propagating 
uncertainties which it does not really try to present, AFAICT). I usually do 
that by hand with @Vindaar's 
[Measuremancer](https://github.com/SciNim/Measuremancer).

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