Rust keeps parsing those logs faster

A few years ago, I wrote about parsing logs 230x faster with Rust, and then followed up with some improvements. Then computers got a lot faster. Today, I re-ran all the same benchmarks that I’ve been running since 2018, and discovered that computers in 2025 are a silly amount faster than computers from 2021. Specifically, on a MacBook Pro with an M4 Max processor (which has 12 performance cores and 4 efficiency cores), I am now able to process 983k records/second on a single core, and 13.1M r/s on all cores. Using the original numbers from the “230x faster” blog post, this M4 Max is 3,113x faster than the original 8 Python workers in AWS Glue were.

andre.arko.net · André.Arko.net