> I just did a quick benchmark searching for `kthreadd` using grep and ag and it's magnitudes faster than grep. I'd be careful with that. You may have just tes

> I just did a quick benchmark searching for `kthreadd` using grep and ag and it's magnitudes faster than grep. I'd be careful with that. You may have just tested the awesomeness of linux caches :-) Yes, it "looks" magnitudes faster: ]$ time grep -Rsn "kthreadd" ... real 0m26.895s user 0m3.131s sys 0m3.151s ]$ time ag "kthreadd" ... real 0m0.906s user 0m1.930s sys 0m1.186s ]$ time rg "kthreadd" ... real 0m0.860s user 0m1.756s sys 0m1.123s But wait, somehow grep got magnitutes faster too: ]$ time grep -Rsn "kthreadd" ... real 0m2.961s user 0m1.979s sys 0m0.959s And we can make both ag and rg slower: ]# echo 1 > /proc/sys/vm/drop_caches ]$ time ag "kthreadd" ... real 0m17.761s user 0m2.371s sys 0m2.728s ]# echo 1 > /proc/sys/vm/drop_caches ]$ time rg "kthreadd" ... real 0m19.276s user 0m1.859s sys 0m3.063s