ruby threads and io

gistfile1.rb

require 'benchmark'

def do_stuff
  `sleep 0.1`
end

Benchmark.bm(10) do |x|
  x.report("sequential") do
    10.times { do_stuff }
  end

  x.report("thread") do
    10.times.map do
      Thread.new { do_stuff }
    end.each(&:join)
  end
end

sequential   0.000000   0.010000   0.040000 (  1.047120)
thread       0.000000   0.010000   0.030000 (  0.113429)