require 'benchmark'

total = (ENV['TOTAL'] || 1000000).to_i

Benchmark.bmbm do |x|
  x.report("'%d'") do
    total.times { sprintf('%d', 10) }
  end

  x.report("'Hello %s, from %4.2f'") do
    total.times { sprintf('Hello %s, from %4.2f', 'world', 123.4567) }
  end
end