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5 Random Ruby Tips Dr Khoo Chong Yee @CantabIP

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Bundler 1.4.0 Parallel Installs gem install bundler --pre bundle install -j4 ! http://tinyurl.com/parallel-bundler (Sikachu blog) http://tinyurl.com/heroku-bundler (Heroku buildpack)

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Bundle Console Start an irb session with all gems in Gemfile Great for gem development ! bundle console

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Tweak Ruby GC Settings • http://tinyurl.com/ruby-gc (Fred Wu blog) • Set environment variables, e.g., in .zshrc • RUBY_GC_MALLOC_LIMIT • RUBY_HEAP_MIN_SLOTS • RUBY_FREE_MIN • 4064 examples • before 2m 24.5s • after 1m 22.58s • 42.8% faster!

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Keep Ruby Notes in Evernote • Tag them “Random Ruby Tips” • Volunteer for the next talk!