Benchmarking Ruby 2.4 to 3.0

I ran some benchmarks using HexaPDF after Ruby 2.4 was released in 2016 and again after Ruby 2.5 was releasd in 2017. Since Ruby 3.0.0 was released this Christmas, I think this warrants another round of benchmarks. And this time three different real-world benchmarks are used to evaluate relative Ruby performance.THREE REAL-WORLD BENCHMARKSThe last two times I just used HexaPDF to evaluate the relative performance of Ruby releases. This time I will use three different Rubygems for this task:.