gist: 21936


  
      benchmark.rb
    
    
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              #!/usr/bin/env ruby
require 'rubygems'
gem 'hpricot', '>=0.6.170'
require 'open-uri'
require 'hpricot'
require 'nokogiri'
require 'benchmark'
 
content = File.read("http://railstips.org/assets/2008/8/9/timeline.xml")
 
N = 100
 
hdoc = Hpricot.XML(content)
ndoc = Nokogiri.Hpricot(content)
hdoc2 = Hpricot.scan(content)
 
Benchmark.bm do |x|
  x.report('hpricot:doc') do
    N.times do
      Hpricot.XML(content)
    end
  end
 
  x.report('hpricot2:doc') do
    N.times do
      Hpricot.scan(content)
    end
  end
 
  x.report('nokogiri:doc') do
    N.times do
      Nokogiri.Hpricot(content)
    end
  end
end
 
Benchmark.bm do |x|
  x.report('hpricot:xpath') do
    N.times do
      info = hdoc.search('//status/text').first.inner_text
      url = hdoc.search('//user/name').first.inner_text
    end
  end
 
  x.report('hpricot2:xpath') do
    N.times do
      info = hdoc2.search('//status/text').first.inner_text
      url = hdoc2.search('//user/name').first.inner_text
    end
  end
 
  x.report('nokogiri:xpath') do
    N.times do
      info = ndoc.xpath('//status/text').first.inner_text
      url = ndoc.xpath('//user/name').first.inner_text
    end
  end
end
 
Benchmark.bm do |x|
  x.report('hpricot:css') do
    N.times do
      info = hdoc.search('status text').first.inner_text
      url = hdoc.search('user name').first.inner_text
    end
  end
 
  x.report('hpricot2:css') do
    N.times do
      info = hdoc2.search('status text').first.inner_text
      url = hdoc2.search('user name').first.inner_text
    end
  end
 
  x.report('nokogiri:css') do
    N.times do
      info = ndoc.search('status text').first.inner_text
      url = ndoc.search('user name').first.inner_text
    end
  end
end
 
            
      Result
    
    
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                    user     system      total        real
hpricot:doc  2.630000   0.030000   2.660000 (  2.655527)
hpricot2:doc  0.340000   0.000000   0.340000 (  0.349340)
nokogiri:doc  0.600000   0.020000   0.620000 (  0.611570)
      user     system      total        real
hpricot:xpath  1.910000   0.000000   1.910000 (  1.911496)
hpricot2:xpath  0.890000   0.010000   0.900000 (  0.897664)
nokogiri:xpath  0.060000   0.000000   0.060000 (  0.061546)
      user     system      total        real
hpricot:css  1.880000   0.000000   1.880000 (  1.889301)
hpricot2:css  0.680000   0.010000   0.690000 (  0.677072)
nokogiri:cssbenchmark.rb:77: [BUG] Bus Error
ruby 1.8.6 (2007-09-24) [i686-darwin8.11.1]
 
            
      Summary
    
    
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              Use Nokogiri's XPath selectors for fastest speed - CSS-based search is faster than Hpricot but not as fast.
 
Also take note that this benchmark is only shows parsing of XML (not HTML).