em_inline_benchmark

gistfile1.rb

require 'eventmachine'
require 'em-synchrony'
require "em-synchrony/em-http"
require 'net/http'
require 'benchmark'

def em_http
  EM.synchrony do
    multi = EventMachine::Synchrony::Multi.new
    multi.add :page1, EventMachine::HttpRequest.new("http://localhost:3000/page1").aget
    multi.add :page2, EventMachine::HttpRequest.new("http://localhost:3000/page1").aget
    multi.add :page3, EventMachine::HttpRequest.new("http://localhost:3000/page1").aget
    multi.add :page4, EventMachine::HttpRequest.new("http://localhost:3000/page1").aget
    data = multi.perform.responses[:callback].values

    EventMachine.stop
  end
end

def inline_http
  (1..4).each do |n|
    uri = URI.parse("http://localhost:3000/page#{n}")
    Net::HTTP.get(uri)
  end
end

Benchmark.bmbm do |x|
  x.report("em") { em_http }
  x.report("inline") { inline_http }
end