Benchmark with ActiveRecord and paper_trail

articles_test.rb

require 'test_helper'
require 'benchmark'

class ArticlesTest < ActiveSupport::TestCase
  # Replace this with your real tests.
  test "benchmark" do
    Benchmark.bm do |b|
      # create an article with paper_trail
      b.report("create") do
        Article.paper_trail_on
        100.times do
          @article = Article.create(:title=>"ruby", :content=>"i like ruby")
        end
      end
      # update article with paper_trail
      b.report("update") do
        Article.paper_trail_on
        100.times do
          @article.update_attributes!(:content=>"i love ruby")
          @article.save
        end
      end
      # create an article without paper_trail
      b.report("create without paper_trail") do
        Article.paper_trail_off
        100.times do
          @article_wo = Article.create(:title=>"ruby", :content=>"i like ruby")
        end
      end
      # update article without paper_trail
      b.report("update without paper_trail") do
        Article.paper_trail_off
        100.times do
          @article_wo.update_attributes!(:content=>"i love ruby")
          @article_wo.save
        end
      end
    end
  end
end

gistfile2.txt

                            user       system     total     real

create                      0.680000   0.080000   0.760000  (  1.613092)
update                      0.250000   0.040000   0.290000  (  0.945468)
create without paper_trail  0.260000   0.050000   0.310000  (  0.886467)
update without paper_trail  0.160000   0.040000   0.200000  (  0.962437)