[Rebelgecko]

I had the same question, wondering what sort of workflow would have this task in the critical path. Maybe if the Library of Congress needs to change their default text encoding it'll save a minute or two?

The benchmark result is cool, but I'm curious how well it works with smaller outputs. When I've played around with SIMD stuff in the past, you can't necessary go off of metrics like "bytes generated per cycle", because of how much CPU freq can vary when using SIMD instructions, context switching costs, and different thermal properties (eg maybe the work per cycles is higher per SIMD, but the CPU generates heat much more quickly and downclocks itself).