Ruby might be faster than you think - John Hawthorn

Now it’s Ruby that’s 5 times faster than Crystal!!! And 20x faster than our original version. Though most likely that’s some cost from the FFI, or something similar, though that does seem like a surprising amount of overhead.I thought it was notable that by making some minor tweaks to Ruby code it can now outperform a precompiled statically typed language in a purpose-built example of when it is slow. I’m hopeful that someday with future advancements in the Ruby JIT even the small tweaks might not be necessary.