About the talk
RailsConf 2019 - Performance Improvement of Ruby 2.7 JIT in Real World by Takashi Kokubun
Have you ever tried MRI's JIT compiler in Ruby 2.6? Unfortunately it had not improved Rails application performance while it achieved a good progress on some other benchmarks.
Beyond the progress at Ruby 2.6, JIT development on Ruby 2.7 will be dedicated to improve performance of real-world applications, especially Ruby on Rails. Come and join this talk to figure out how it's going well and what you should care about when you use it on production.
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