Under 2 seconds seems rather impossible on my machine since the disk maxes out at 5.1 GB/s. This one ran in 7.4s on my M3:
`bin/analyze measurements.txt 30.34s user 16.28s system 629% cpu 7.406 total`
`bin/analyze measurements.txt 30.34s user 16.28s system 629% cpu 7.406 total`
With SIMD and certain assumptions about the input this can seemingly be further reduced to well under a second, eg see https://github.com/gunnarmorling/1brc/discussions/138.