Measure response time for a HTTP request using Ruby

As mentioned in the comments, ruby has a benchmark module

require "benchmark"

time = Benchmark.measure do
  #requests
end

Net::HTTP doesn't track response time, since it's not its job.

Before and after your request use Time.now to set start and end times:

start_time = Time.now
# ...do request...
elapsed_time = Time.now - start_time

If you want to average that, add the elapsed_time values together and divide by the number of tests:

total_time += elapsed_time
# ... do some stuff...
average_time = total_time / num_of_iterations

Time measures down to the micro-second, which should be plenty accurate for your needs.

You're on your own for the interface as that's an entirely different subject and would constitute a book.