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I tried to gauge the cpu usage (just looking at the percentage as listed in xmobar) -- but both grep and ag are too fast on the ~400mb set of files for that to work... As I have two cores on this machine, the difference between ag and rgrep could indeed be ag's use of threads.

Many thanks for not just writing and sharing ag as free software, but for the nice articles describing the design and optimizations!

At least this brief benchmarking run convinced me that I should probably try to integrate ag in my work flow :-)




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