parallel_req.rb

# some real quick code for running requests in parallel
# usage:
#  $ ruby parallel_req.rb http://url_place/ post 5 data.json

# doesn't work with get requests (yet)!
require 'http'

url = ARGV[0]
method = ARGV[1]
thread_count = ARGV[2].to_i
data = File.read(ARGV[3])

results = {}

threads = thread_count.times.map do |n|
  Thread.new do |t|
    start_time = Time.now
    HTTP.send(method, url, :json => data)
    end_time = Time.now
    duration = end_time - start_time
    results[n] = duration
  end
end

threads.each do |t|
  t.join
end

results.each do |id, duration|
  puts "thread[#{id}]: #{duration}"
end