Exploring Ruby Ractors

Ruby Ractors Adventure &ldquo;I paid for 10 cores, I&rsquo;m gonna use 10 cores!&rdquo; I set out today for a silly explore hoping to waste some CPU with a whole bunch of ractors doing math, but I find that YJIT is pretty amazing. Ruby 3.0.0 came out in December 2020, more than 4 years ago now, and with it came Ractors (and Fiber Scheduler but that&rsquo;s another episode). Ractors promised a way…