bench.rb

require 'rubygems'
require 'benchmark'
require 'bluecloth'

# results on Mac OS X 10.5.6, Ciore Duo 2 at 2.5 GHz
#
# also see graph of results:
#
#   http://img.skitch.com/20090408-fp1sxu3fu7dm4296kqrmskgaqt.png
#
# [bluecloth-git (master)]$ ruby bench.rb
# 
# Ruby version: MRI 1.8.6 (2008-03-03 rev 114), platform: universal-darwin9.0
# 
# Benchmark Ruby BlueCloth processing of: http://daringfireball.net/projects/markdown/syntax.text
# file length = 11075
# 
# running benchmark once.
# 
# Rehearsal ------------------------------------------------------------------------------------------
# process README.md concatenated 1 times with BlueCloth    0.140000   0.010000   0.150000 (  0.159116)
# process README.md concatenated 2 times with BlueCloth    0.330000   0.040000   0.370000 (  0.398529)
# process README.md concatenated 4 times with BlueCloth    0.820000   0.140000   0.960000 (  0.976002)
# process README.md concatenated 8 times with BlueCloth    2.130000   0.510000   2.640000 (  2.683848)
# process README.md concatenated 16 times with BlueCloth   6.520000   2.090000   8.610000 (  8.763092)
# process README.md concatenated 32 times with BlueCloth  22.370000   8.570000  30.940000 ( 31.517693)
# -------------------------------------------------------------------------------- total: 43.670000sec
# 
#                                                              user     system      total        real
# process README.md concatenated 1 times with BlueCloth    0.090000   0.010000   0.100000 (  0.105123)
# process README.md concatenated 2 times with BlueCloth    0.220000   0.030000   0.250000 (  0.250649)
# process README.md concatenated 4 times with BlueCloth    0.590000   0.100000   0.690000 (  0.696880)
# process README.md concatenated 8 times with BlueCloth    1.810000   0.460000   2.270000 (  2.298147)
# process README.md concatenated 16 times with BlueCloth   6.150000   2.110000   8.260000 (  8.352241)
# process README.md concatenated 32 times with BlueCloth  22.210000   8.970000  31.180000 ( 31.484872)
# 
# [bluecloth-git (master)]$ jruby bench.rb 2
# 
# Ruby version: JRuby 1.8.6 (2009-04-08 rev 287) [i386-jruby1.3.0], platform: Java, version 1.6.0_07
# 
# Benchmark Ruby BlueCloth processing of: http://daringfireball.net/projects/markdown/syntax.text
# file length = 11075
# 
# running benchmark 2 times.
# 
# Rehearsal ------------------------------------------------------------------------------------------
# process README.md concatenated 1 times with BlueCloth    0.535000   0.000000   0.535000 (  0.535000)
# process README.md concatenated 2 times with BlueCloth    0.557000   0.000000   0.557000 (  0.557000)
# process README.md concatenated 4 times with BlueCloth    0.672000   0.000000   0.672000 (  0.671000)
# process README.md concatenated 8 times with BlueCloth    1.380000   0.000000   1.380000 (  1.380000)
# process README.md concatenated 16 times with BlueCloth   4.277000   0.000000   4.277000 (  4.277000)
# process README.md concatenated 32 times with BlueCloth  14.257000   0.000000  14.257000 ( 14.257000)
# -------------------------------------------------------------------------------- total: 21.678000sec
# 
#                                                              user     system      total        real
# process README.md concatenated 1 times with BlueCloth    0.068000   0.000000   0.068000 (  0.068000)
# process README.md concatenated 2 times with BlueCloth    0.156000   0.000000   0.156000 (  0.156000)
# process README.md concatenated 4 times with BlueCloth    0.404000   0.000000   0.404000 (  0.404000)
# process README.md concatenated 8 times with BlueCloth    1.166000   0.000000   1.166000 (  1.166000)
# process README.md concatenated 16 times with BlueCloth   3.984000   0.000000   3.984000 (  3.984000)
# process README.md concatenated 32 times with BlueCloth  14.119000   0.000000  14.119000 ( 14.118000)


if RUBY_PLATFORM =~ /java/ 
    include Java 
    @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}"
end

# @readme = File.read("PHP_Markdown_README.txt")
# found here:
# http://wpcal.firetree.net/wp-content/plugins/PHP%20Markdown%201.0.1k/PHP%20Markdown%20Readme.text

@readme = File.read("README.md")
# try this one instead:
# http://eigenclass.org/misc/README.md
@readme_files = []
(0..5).each do |i|
  @readme_files << @readme * (2**i)
end

num = 32
test_iterations = ARGV.first.to_i 
test_iterations = 1 unless test_iterations > 1
puts 
puts @ruby_info
puts 
puts "Benchmark Ruby BlueCloth processing of: http://daringfireball.net/projects/markdown/syntax.text"
puts "file length = #{@readme.length}"
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|
    (0..5).each do |i|
      x.report("process README.md concatenated #{2**i} times with BlueCloth") { BlueCloth::new(@readme_files[i]).to_html }
    end
  end
  puts
end