Script to parse rails logs and summarise total partial rendering times.

per_partial_render_time.rb

data = Hash.new(0)

while line = gets
  if m = line.match(/Rendered (\S+) \(([\d\.]+)\)/)
    data[m[1]] += m[2].to_f
  end
  
  if line =~ /Completed/
    data.sort_by{ |name, value| value }.each do |name, value|
      puts "%.04f : #{name}" % value
    end
    
    puts line, ""
    data.clear
  end
end