Here's a script to install these patches using rvm: https://gist.github.com/3993269
I can confirm my loading time went from 25 seconds to 15 seconds on Teambox, our fairly large Rails 3 app. Kudos!
Ruby 2.0 patch that could make Rails startup 2.2x faster
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Re: Ruby 2.0 patch that could make Rails startup 2.2x faster
#22For a really fast Rails environment I highly recommend Zeus https://github.com/burke/zeus which is built in Go. It does a great job of reloading only the dependencies that have changed.
+1 I've been using it on a number of Rails apps. Really helps reduce the time spent in TDD cycles and stay focused.