rspec_ruby_prof.rb

RSpec.configure do |c|
  # Enable profiling on the spec
  c.before(:all) do |x|
    RubyProf.start
  end

  c.after(:all) do |x|
    results = RubyProf.stop
    results.eliminate_methods!([/RSpec::Core/])

    artifacts_dir = "artifacts/performance/"

    FileUtils.mkdir_p(artifacts_dir)
    File.open "#{artifacts_dir}/#{self.class.metadata[:full_description]}.html", 'w' do |file|
      RubyProf::GraphHtmlPrinter.new(results).print(file)
    end
  end
end