Ruby HTTP gems quick benchmarking via Faraday

f_benchmark.rb

#!/usr/bin/env ruby
require 'bundler'

# Bundler.require(:default)
# Bundler.require(:benchmark)

require 'faraday'
require 'excon'
require 'em-http-request'
require 'httparty'
require 'net/http'
require 'net/http/persistent'
require 'open-uri'
require 'rest-client'
require 'tach'
require 'typhoeus'
require 'patron'
require "em-synchrony"
require "em-synchrony/em-http"
require 'benchmark'
require 'benchmark/ips'

def setup_conn(adapter=Faraday.default_adapter, url="https://www.google.com")
  Faraday.new(url: url) do |faraday|
    faraday.adapter  adapter                  # make requests with Net::HTTP
  end
end

Benchmark.ips do |x|

  conn = setup_conn :net_http
  x.report('Net::HTTP') do
    conn.get('/').body
  end

  conn = setup_conn :net_http_persistent
  x.report('Net::HTTP::Persistent') do
    conn.get('/').body
  end

  conn = setup_conn :typhoeus
  x.report('Typhoeus') do
    conn.get('/', {accept_encoding: "gzip", followlocation: true}).body
  end

  conn = setup_conn :patron
  x.report('Patron') do
    conn.get('/').body
  end

  conn = setup_conn :em_synchrony
  x.report('em_synchrony') do
    conn.get('/').body
  end

  conn = setup_conn :em_http
  x.report('em_http') do
    conn.get('/').body
  end

  conn = setup_conn :excon
  x.report('excon') do
    conn.get('/').body
  end

  conn = setup_conn :rack
  x.report('rack') do
    conn.get('/').body
  end

  conn = setup_conn :httpclient
  x.report('httpclient') do
    conn.get('/').body
  end

  x.compare!

end

results.txt

Warming up --------------------------------------
           Net::HTTPCookie#domain returns dot-less domain name now. Use Cookie#dot_domain if you need "." at the beginning.
     1.000  i/100ms
Net::HTTP::Persistent
                         1.000  i/100ms
            Typhoeus     1.000  i/100ms
              Patron     1.000  i/100ms
        em_synchrony     1.000  i/100ms
             em_http     1.000  i/100ms
               excon     1.000  i/100ms
                rack     1.000  i/100ms
          httpclient     1.000  i/100ms
Calculating -------------------------------------
           Net::HTTP      7.946  (±12.6%) i/s -     39.000  in   5.073157s
Net::HTTP::Persistent
                          7.701  (±13.0%) i/s -     38.000  in   5.030249s
            Typhoeus      7.978  (±12.5%) i/s -     40.000  in   5.068402s
              Patron      6.912  (±43.4%) i/s -     15.000  in   6.935920s
        em_synchrony      0.505  (± 0.0%) i/s -      3.000  in   6.034548s
             em_http      0.375  (± 0.0%) i/s -      2.000  in   5.364837s
               excon      0.463  (± 0.0%) i/s -      3.000  in   6.530681s
                rack      0.603  (± 0.0%) i/s -      3.000  in   5.428011s
          httpclient      0.521  (± 0.0%) i/s -      3.000  in   6.067653s

Comparison:
            Typhoeus:        8.0 i/s
           Net::HTTP:        7.9 i/s - same-ish: difference falls within error
Net::HTTP::Persistent:        7.7 i/s - same-ish: difference falls within error
              Patron:        6.9 i/s - same-ish: difference falls within error
                rack:        0.6 i/s - 13.22x  slower
          httpclient:        0.5 i/s - 15.30x  slower
        em_synchrony:        0.5 i/s - 15.79x  slower
               excon:        0.5 i/s - 17.24x  slower
             em_http:        0.4 i/s - 21.29x  slower