find slow pages in your rails app

slow_pages.rb

# usage: cat log/production.log | grep Completed | ruby slow_pages.rb

ARGF.each_line do |line|
  fields = line.split(' ')
  total = fields[4].to_f / 1000.0
  ar = fields[9].to_f / 1000.0
  if total > 1
    puts "total: #{total} AR: #{ar}"
  end
end