ruby_prof_snip.rb

require 'ruby-prof'

RubyProf.start

# code...

results = RubyProf.stop

# Print a flat profile to text
File.open "#{Rails.root}/tmp/performance/#{file_name}-graph.html", 'w' do |file|
  RubyProf::GraphHtmlPrinter.new(results).print(file)
end

File.open "#{Rails.root}/tmp/performance/#{file_name}-flat.txt", 'w' do |file|
  # RubyProf::FlatPrinter.new(results).print(file)
  RubyProf::FlatPrinterWithLineNumbers.new(results).print(file)
end

File.open "#{Rails.root}/tmp/performance/#{file_name}-stack.html", 'w' do |file|
  RubyProf::CallStackPrinter.new(results).print(file)
end