An example of vectorisation helping string operation

Posted Nov 1, 2025 16:53 UTC (Sat) by fishface60 (subscriber, #88700)
In reply to: Amdahl's law, 55 years later by epa
Parent article: Ubuntu introduces architecture variants

I misremembered reading https://purplesyringa.moe/blog/i-sped-up-serde-json-strin... as doing manual vectorisation because it does some similar tricks within 32-bit registers, so it's not relevant for specifically how to do it, but may be of interest for how vectorisation speeds up string encoding and decoding.