bench.rb

# Slap this in the root of the cloned repository (or change the require relative).

require 'progress_bar'

require_relative 'lib/oga'

def memory_usage
  `ps -o rss= #{Process.pid}`.strip.to_f
end

puts 'Reading XML...'

# XML downloaded from http://www.ins.cwi.nl/projects/xmark/Assets/standard.gz
# Adjust path to it if needed (probably)
xml        = File.read('/home/yorickpeterse/Downloads/big.xml')
start_mem  = memory_usage
start_time = Time.now.to_i
newline    = "\n"
progress   = ProgressBar.new(2035122) # from wc -l because lazy

lexer = Oga::XML::Lexer.new(xml)

puts 'Lexing XML...'

lexer.advance do |token|
  progress.increment! if token[1] == newline
end

diff_mb   = ((memory_usage - start_mem) / 1024).round(2)
diff_time = Time.now.to_i - start_time

puts "Usage: #{diff_mb} MB"
puts "Time:  #{diff_time} sec"

setup.txt

git clone git@github.com:YorickPeterse/oga.git
cd oga
bundle install