Comment by orf

They didn't debug anything. They just stuck a job queue on it and then rewrote part of it in Rust. That's the point of my comment. Using their code in the post (gist here[1]):

   $ pv lol.tsv | node lol.js
   1.71GiB 0:00:07 [ 225MiB/s] [================================>] 100%
   Finished reading the file.

Do we live in a world where engineers using a mature language like NodeJS with a pretty simple line-by-line file reading process and a string split think they hit a hard wall at 700kb/s, and the problem is not their bad code?

1. https://gist.github.com/orf/92bc26381e3dc00c8e96af262768591b