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Ruby 2.1 was released this Christmas, great news everyone! It sports a better GC (RGenGC - gerational GC), hierarchical method caching, some small syntax changes and non-experimental rafinements. All in all one can expect 5% to 15% performance increase which is quite awesome.
As I was reading the comments in the hack ...
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I'm not sure why RVM is still my default Ruby version manager yet the issue at hand should be reproducible on rbenv too.
Let's add a bit of context to this: we have an API written in Ruby and running on JRuby i.e. via JVM which implies slow start-up times compared to CRuby (yes, even with export JRUBY_OPTS='--dev' ...
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When I write an API, though I'm not a hard core TDD practitioner, I do like writing specs - especially requests specs that test the whole stack.
Adding them into an API is fast and yields quite good results compared to an app with an UI where you have to use chrome-cli or phantomjs just to get near of that level but ...