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#!/usr/bin/env ruby
#
# Each test has an XML Parser open a 98k XML document and count one type of leaf
# element (466 entries). This is repeated a total of 100 times, twice for each Parser.
# Summary measurements are from the second test.
#
# Tests run on a MacBook Pro, Mac OS X 10.5.5, 4GB memory, 2.5 GHz Intel Core 2 Duo.
#
# Library versions:
# hpricot 0.6.164
# libxml: 0.9.2
#
# All benchmarks were run twice in sequence and the measurements presented here are from
# the second run. Java automatically optimizes JRuby code which is run many times and the
# speedup from the first to the second test is from 40 to 75%. There is no essential
# difference in the speed of the C version of Ruby between the first test and the second.
#
# Summary:
#
# 100 times: Open 98k XML document and count one type of leaf element (466 entries)
#
# JRuby (Java 1.6.0_03-p3-Soylatte using server mode): jdom_document_builder 0.360
# MRI: libxml v0.9.2 0.383
# JRuby (Java 1.6.0_07): jdom_document_builder 0.401
# JRuby (Java 1.5.0_16): jdom_document_builder 0.428
# JRuby (Java 1.6.0_03-p3-Soylatte using server mode): hpricot 1.977
# JRuby (Java 1.5.0_16): hpricot 2.027
# JRuby (Java 1.6.0_07): hpricot 2.094
# MRI: hpricot 2.140
# JRuby (Java 1.6.0_03-p3-Soylatte using server mode): rexml 5.488
# JRuby (Java 1.5.0_16): rexml 5.569
# JRuby (Java 1.5.0_16): rexml 5.578
# MRI: rexml 8.606
#
# Ruby version: MRI 1.8.6 (2008-03-03 rev 114), platform: universal-darwin9.0
# --------------------------------------------------------------------------------
# user system total real
# rexml 8.170000 0.100000 8.270000 ( 8.606676)
# hpricot 1.990000 0.040000 2.030000 ( 2.140865)
# libxml 0.350000 0.020000 0.370000 ( 0.383475)
#
# JRuby 1.1.5 (svn r8078) on Java 1.5.0_16
# --------------------------------------------------------------------------------
# user system total real
# rexml 5.578000 0.000000 5.578000 ( 5.578371)
# hpricot 2.028000 0.000000 2.028000 ( 2.027348)
# jdom_document_builder 0.429000 0.000000 0.429000 ( 0.428713)
#
# JRuby 1.1.5 (svn r8078) on Java 1.6.0_07
# --------------------------------------------------------------------------------
# user system total real
# rexml 5.569000 0.000000 5.569000 ( 5.569135)
# hpricot 2.094000 0.000000 2.094000 ( 2.093635)
# jdom_document_builder 0.401000 0.000000 0.401000 ( 0.401115)
#
# JRuby 1.1.5 (svn r8078) on Java 1.6.0_07 using server mode (-J-server)
# --------------------------------------------------------------------------------
# user system total real
# rexml 5.489000 0.000000 5.489000 ( 5.488560)
# hpricot 1.977000 0.000000 1.977000 ( 1.976845)
# jdom_document_builder 0.377000 0.000000 0.377000 ( 0.377808)
#
# JRuby 1.1.5 (svn r8078) on Java 1.6.0_03-p3 (Soylatte) using server mode (-J-server)
# --------------------------------------------------------------------------------
# user system total real
# rexml 5.596000 0.000000 5.596000 ( 5.596212)
# hpricot 1.937000 0.000000 1.937000 ( 1.937312)
# jdom_document_builder 0.360000 0.000000 0.360000 ( 0.360068)
require 'rubygems'
require 'benchmark'
require "rexml/document"
require 'hpricot'
if RUBY_PLATFORM =~ /java/
include Java
import javax.xml.parsers.DocumentBuilder
import javax.xml.parsers.DocumentBuilderFactory
@dbf = DocumentBuilderFactory.new_instance
@ruby_info = "Ruby version: JRuby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE} rev #{RUBY_PATCHLEVEL}) [i386-jruby#{JRUBY_VERSION}]"
@ruby_info << ", platform: Java, version #{java.lang.System.getProperty('java.version')}"
else
@ruby_info = "Ruby version: MRI #{RUBY_VERSION} (#{RUBY_RELEASE_DATE} rev #{RUBY_PATCHLEVEL})"
@ruby_info << ", platform: #{RUBY_PLATFORM}"
gem 'nokogiri', '>= 1.0.6'
require 'nokogiri'
gem 'libxml-ruby', '>= 0.9.2'
require 'libxml'
@xml_parser = LibXML::XML::Parser.new
end
file = File.expand_path(File.join(File.dirname(__FILE__), "sock_entries.xml"))
@bundle_with_466_sock_entries = File.read(file)
def rexml_count_socks
doc = REXML::Document.new(@bundle_with_466_sock_entries).root
socks = doc.elements.to_a('./sockEntries').length
end
unless RUBY_PLATFORM =~ /java/
def nokogiri_count_socks
#doc = Nokogiri(@bundle_with_466_sock_entries)
#socks = doc.search('//sockEntries').length
end
def libxml_count_socks
@xml_parser = LibXML::XML::Parser.new
@xml_parser.string = @bundle_with_466_sock_entries
doc = @xml_parser.parse
socks = doc.find('//sockEntries').length
end
end
def hpricot_count_socks
doc = Hpricot.XML(@bundle_with_466_sock_entries)
socks = doc.search("//sockEntries").length
end
if RUBY_PLATFORM =~ /java/
def jdom_document_builder_count_socks
file = File.expand_path(File.join(File.dirname(__FILE__), "sock_entries.xml"))
doc = @dbf.new_document_builder.parse(file).get_document_element
socks = doc.getElementsByTagName("sockEntries")
socks.get_length
end
end
n = 100
test_iterations = ARGV.first.to_i
test_iterations = 1 unless test_iterations > 1
puts
puts @ruby_info
puts
puts "#{n} times: Open 98k XML document and count one type of leaf element (466 entries)"
puts
print "running benchmark "
if test_iterations == 1
puts "once.\n\n"
else
puts "#{test_iterations} times.\n\n"
end
test_iterations.times do
Benchmark.bmbm do |x|
x.report("rexml") { n.times {rexml_count_socks} }
x.report("hpricot") { n.times {hpricot_count_socks} }
x.report("jdom_document_builder") { n.times {jdom_document_builder_count_socks} } if RUBY_PLATFORM =~ /java/
#x.report("nokogiri") { n.times {nokogiri_count_socks} } unless RUBY_PLATFORM =~ /java/
x.report("libxml") { n.times {libxml_count_socks} } unless RUBY_PLATFORM =~ /java/
end
puts
end
#
# jrexml doesn't appear to have any speedup in this test
#
# if RUBY_PLATFORM =~ /java/
# require 'jrexml'
# def rexml_with_jrexml_count_socks
# doc = REXML::Document.new(@bundle_with_466_sock_entries).root
# socks = doc.elements.to_a('./sockEntries').length
# end
#
# puts "\nNow add in JREXML to see if it speeds up rexml\n"
# Benchmark.bmbm do |x|
# x.report("rexml+jrexml") { n.times {rexml_with_jrexml_count_socks} }
# end
# puts
# end
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