Testing async with HTTParty and Async gem

test_async.rb

require 'async'
require 'benchmark'
require 'open-uri'
require 'httparty'

n = 3
Benchmark.bm(20) do |b|

  b.report "Sequential" do
    n.times do |i|
      HTTParty.get("https://httpbin.org/delay/1.6")
    end
  end

  b.report "Threads + HTTParty" do
    threads = Array.new(n) { |i|
      Thread.new {
        HTTParty.get("https://httpbin.org/delay/1.6")
      }
    }
    threads.each(&:join)
  end

  b.report "Async + HTTParty" do
    Async do |task|
      n.times do |i|
        task.async do
          HTTParty.get("https://httpbin.org/delay/1.6")
        end
      end
    end
  end

  b.report "Async + open-uri" do
    Async do |task|
      n.times do |i|
        task.async do
          URI.open("https://httpbin.org/delay/1.6")
        end
      end
    end
  end

end

On my machine Async does not show any speed-up:

                           user     system      total        real
Sequential             0.022462   0.000000   0.022462 (  6.231416)
Threads + HTTParty     0.026574   0.000694   0.027268 (  2.127636)
Async + HTTParty       0.008827   0.010009   0.018836 (  6.255890)
Async + open-uri       0.021286   0.001112   0.022398 (  6.266774)

Never mind: Needs Ruby 3.0!