gistfile1.rbx

require 'nokogiri'
require 'rubygems'
require 'builder'
require 'benchmark'

n = 50_000
Benchmark.bm(7) do |x|
  x.report("builder: ") {
    n.times {
      builder = Builder::XmlMarkup.new(:indent => 1)
      builder.instruct!
      builder.root {
        builder.hello("World!", "type" => "global")
      }
    }
  }

  x.report("nokogiri: ") {
    n.times {
      Nokogiri::XML::Builder.new {
        root {
          hello(:type => "global") {
            text "World!"
          }
        }
      }.to_xml
    }
  }
end
__END__
user     system      total        real
builder:   9.570000   0.030000   9.600000 (  9.695058)
nokogiri:   3.840000   0.020000   3.860000 (  3.878262)