Don't shoot me, but out of curiosity I wrote the thing in javascript: https://gi...

Don't shoot me, but out of curiosity I wrote the thing in javascript: https://gist.github.com/ricardobeat/ee2fb2a6d704205446b7

Results: 4.4GB[1] processed in 47 seconds. Around 96mb/s, can probably be made faster, and nodejs is not the best at munging data...