[felixge]

Just put together a naive version of wc in Go and got similar perf gains over the wc that ships with macOS.

That being said, unlike the OP, I don't think it means anything as wc is likely supporting more features than my program.

    $ time wc test.txt
     16500000 49252094 2059004431 test.txt

    real 0m5.930s
    user 0m5.491s
    sys 0m0.374s

    $ go build wc.go && time ./wc test.txt
    16500000 49252094 2059004431

    real 0m2.947s
    user 0m2.620s
    sys 0m0.299s

https://gist.github.com/felixge/aa70fc97e893a7eb0bd4c801f8f5...