RSpec formatter to analyse your spec suite giving you a breakdown of how long your specs are taking to execute.

gem install beagle

Add Beagle::TimedFormatter as a formatter to your rspec run, either from the command line or your rake task eg:

rspec spec/models/your_spec.rb -f Beagle::TimedFormatter

RSpec::Core::RakeTask.new(:spec => spec_prereq) do |t|
  t.pattern = "./spec/**/*_spec.rb"
  t.spec_opts = ["-f", "Beagle::TimedFormatter"]
end

Generates an html page under $PROJECT_ROOT/reports/beagle/index.html