runtime.rb

require 'byebug'

integration = []
File.open('/home/guoxiang/app2/itest.txt', 'r').each_line do |line|
  line.match(/Finished in ([\d.]+)/)
  integration << $1.to_f if $1
end

functional = []
File.open('/home/guoxiang/app2/ftest.txt', 'r').each_line do |line|
  line.match(/Finished in ([\d.]+)/)
  functional << $1.to_f if $1
end

integration_average = integration.inject(0.0) { |sum, n| sum + n } / integration.size
functional_average = functional.inject(0.0) { |sum, n| sum + n } / functional.size

puts integration_average
puts functional_average