Compare FasterBuilder and Nokogiri::Builder

fater_builder_nokogiri.rb

$LOAD_PATH.unshift File.dirname(__FILE__)

require 'rubygems'
require 'nokogiri'
require 'faster_builder/xml_markup'
require 'benchmark'

def nokogiri_builder
  b = Nokogiri::XML::Builder.new do |xml|
    xml.task do
      xml.progress "10"
      xml.success "true"
      xml.message "Some String"
      xml.updated Time.now.to_s
    end
  end
  b.to_xml
end

def faster_builder
  xml = FasterBuilder::XmlMarkup.new
  xml.instruct!
  xml.task do
    xml.tag!("progress", 10)
    xml.tag!("success", true)
    xml.tag!("message", "Some string")
    xml.tag!("updated", Time.now)
  end
  xml.target!
end

def faster_builder_2
  xml = FasterBuilder::XmlMarkup.new
  xml.instruct!
  xml.task do
    xml.progress 10
    xml.success true
    xml.message "Some string"
    xml.updated Time.now
  end
  xml.target!
end

if __FILE__ == $0

  TIMES = 30000
  Benchmark.bmbm do |x|
    x.report('FasterBuilder') { TIMES.times { faster_builder } }
    x.report('FasterBuilder (Method missing)') { TIMES.times { faster_builder_2 } }
    x.report('Nokogiri::Builder') { TIMES.times { nokogiri_builder } }
  end

end

__END__

$ ruby lib/nokogiri_builder.rb 
Rehearsal ------------------------------------------------------------------
FasterBuilder                    2.260000   0.020000   2.280000 (  2.285009)
FasterBuilder (Method missing)   2.480000   0.000000   2.480000 (  2.495342)
Nokogiri::Builder                3.900000   0.010000   3.910000 (  3.907372)
--------------------------------------------------------- total: 8.670000sec

                                     user     system      total        real
FasterBuilder                    2.180000   0.000000   2.180000 (  2.177058)
FasterBuilder (Method missing)   2.470000   0.000000   2.470000 (  2.466327)
Nokogiri::Builder                3.820000   0.010000   3.830000 (  3.831117)