Thin test

client.rb

require 'http'

NB = 5
times = []
threads = (0..NB).map do |i|
  Thread.new(i) {|nb|
    t1 = Time.now
    puts Http.get("http://127.0.0.1:3000")
    t2 = Time.now
    times[nb] = (t2-t1)
  }
end

threads.map{|t| t.join}

puts times.inspect
avg = times.inject(0.0){|avg,t| avg + t}/NB
puts "#{avg} sec/req"

config.ru

run lambda{|env|
  sleep(1)
  [200, {"Content-Type" => "text/plain"}, ["Done."]]
}