url_for_benchmark.rb

require 'abstract_controller/railties/routes_helpers'
require 'action_controller'
require 'action_controller/railties/helpers'
require 'action_view'
require 'action_dispatch'
require 'active_record'

ActiveRecord::Base.establish_connection adapter: "sqlite3", database: ":memory:"

ActiveRecord::Base.connection.instance_eval do
  create_table(:articles)
  create_table(:comments)
end

class Article < ActiveRecord::Base; end
class Comment < ActiveRecord::Base; end

ROUTES = ActionDispatch::Routing::RouteSet.new
ROUTES.draw {
  resources(:articles) {
    resources :comments
  }
}
class ApplicationController < ActionController::Base
  include ROUTES.mounted_helpers
  extend ::AbstractController::Railties::RoutesHelpers.with(ROUTES)
  extend ::ActionController::Railties::Helpers
end

class Articles < ApplicationController
end

req = ActionDispatch::Request.new({"GATEWAY_INTERFACE"=>"CGI/1.1",
 "PATH_INFO"=>"/users",
 "QUERY_STRING"=>"",
 "REMOTE_ADDR"=>"::1",
 "REMOTE_HOST"=>"::1",
 "REQUEST_METHOD"=>"GET",
 "REQUEST_URI"=>"http://localhost:3000/users",
 "SCRIPT_NAME"=>"",
 "SERVER_NAME"=>"localhost",
 "SERVER_PORT"=>"3000",
 "SERVER_PROTOCOL"=>"HTTP/1.1",
 "SERVER_SOFTWARE"=>"WEBrick/1.3.1 (Ruby/2.3.0/2015-02-17)",
 "HTTP_USER_AGENT"=>"curl/7.37.1",
 "HTTP_HOST"=>"localhost:3000",
 "HTTP_ACCEPT"=>"*/*",
 "rack.version"=>[1, 3],
 "rack.input"=> StringIO.new,
 "rack.errors"=> STDERR,
 "rack.multithread"=>false,
 "rack.multiprocess"=>false,
 "rack.run_once"=>false,
 "rack.url_scheme"=>"http",
 "HTTP_VERSION"=>"HTTP/1.1",
 "REQUEST_PATH"=>"/users",
 "ORIGINAL_FULLPATH"=>"/users",
 "ORIGINAL_SCRIPT_NAME"=>"",
 "action_dispatch.request_id"=>"da9c324b-ba19-4ba1-8bdb-6518412c2947"})

controller    = Articles.new
controller.request = req

view = Class.new(ActionView::Base) {
  include ROUTES.url_helpers(true)
  include ROUTES.mounted_helpers
}.new(nil, {}, controller)

comment = Comment.new.tap(&:save!)
article = Article.new.tap(&:save!)

view.url_for article

view.article_path article
controller.article_path article

puts "CONTROLLER"
Benchmark.ips do |x|
  x.report("article_path(model)") { controller.article_path article }
end

puts "VIEW"
Benchmark.ips do |x|
  x.report("article_path(model)") { view.article_path article }
end

ObjectSpace::AllocationTracer.trace do
  3000.times { view.article_path article }
end

p ObjectSpace::AllocationTracer.allocated_count_table.values.inject :+