[screwreg]

Actually, there's been another advance since Ryu: Schubfach by Raffaello Giulietti and its optimized derivative Dragonbox by Junekey Jeon. Here's a cool page with implementations and a benchmark: https://github.com/abolz/Drachennest/

[ptspts]

This page has a benchmark graph, but without labels on the axes, thus it doesn't even say which algorithm was faster.

My guess is that smaller y values indicate proportionally faster executions.