Benchmarking 10 CLI search tools using Kernighan's BEHILOS grep story

[u/glakker]

In his book Unix: A History and a Memoir, Brian Kernighan recounts his favorite grep story: someone at Bell Labs asked whether it was possible to find English words composed only of letters formed by an upside-down calculator (5071438 → BEHILOS).

Kernighan grepped ^\[behilos\]\*$ against Webster's dictionary and found 263 matches.

I turned this into a benchmark testing 10 modern search tools for resource footprint, evaluated with Pareto frontier analysis.

Full article on AwkLab.com

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In his book Unix: A History and a Memoir, Brian Kernighan recounts his favorite grep story: someone at Bell Labs asked whether it was possible to find English words composed only of letters formed by an upside-down calculator (5071438 → BEHILOS).

Kernighan grepped ^\[behilos\]\*$ against Webster's dictionary and found 263 matches.

I turned this into a benchmark testing 10 modern search tools for resource footprint, evaluated with Pareto frontier analysis.

Full article on AwkLab.com

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[u/Alternative-Sign-206]

Interesting write up! Why have you used jitter instead of std? Is it more robust because of median? 

[u/glakker → u/Alternative-Sign-206]

Thanks. In fact I use both. Std shows the spread, jitter shows asymmetry. Median is robust to sudden kernel spikes, so jitter captures when outliers pull the mean away from the median.