Idea of RSpec-ish benchmarking tool

bm.rb

require 'benchmark_helper'

# Describe performance like RSpec-ish DSL
describe Api::Notifications do
  before do
    # Can use FactoryGirl to populate data
    @me = create :user
    create :post, author: @user

    1000.times do
      user = create :user
      @me.subscribe! user
      create :post, author: user
    end
  end

  # Block run within #benchmark will be measured
  benchmark "Receiving notification" do
    get '/notifications'
  end
end