9 files changed, 216 insertions, 0 deletions
diff --git a/actionpack/examples/performance.rb b/actionpack/examples/performance.rb
new file mode 100644
index 0000000000..398191154c
--- /dev/null
+++ b/actionpack/examples/performance.rb
@@ -0,0 +1,182 @@
+ENV['RAILS_ENV'] ||= 'production'
+ENV['NO_RELOAD'] ||= '1'
+
+require File.expand_path('../../../load_paths', __FILE__)
+require 'action_pack'
+require 'action_controller'
+require 'action_view'
+require 'active_model'
+require 'benchmark'
+
+MyHash = Class.new(Hash)
+
+Hash.class_eval do
+  extend ActiveModel::Naming
+  include ActiveModel::Conversion
+end
+
+class Runner
+  def initialize(app, output)
+    @app, @output = app, output
+  end
+
+  def puts(*)
+    super if @output
+  end
+
+  def call(env)
+    env['n'].to_i.times { @app.call(env) }
+    @app.call(env).tap { |response| report(env, response) }
+  end
+
+  def report(env, response)
+    return unless ENV["DEBUG"]
+    out = env['rack.errors']
+    out.puts response[0], response[1].to_yaml, '---'
+    response[2].each { |part| out.puts part }
+    out.puts '---'
+  end
+
+  def self.puts(*)
+    super if @output
+  end
+
+  def self.print(*)
+    super if @output
+  end
+
+  def self.app_and_env_for(action, n)
+    env = Rack::MockRequest.env_for("/")
+    env.merge!('n' => n, 'rack.input' => StringIO.new(''), 'rack.errors' => $stdout)
+    app = lambda { |env| BasePostController.action(action).call(env) }
+    return app, env
+  end
+
+  $ran = []
+
+  def self.run(action, n, output = true)
+    print "."
+    STDOUT.flush
+    @output = output
+    label = action.to_s
+    app, env = app_and_env_for(action, n)
+    t = Benchmark.realtime { new(app, output).call(env) }
+    $ran << [label, (t * 1000).to_i.to_s] if output
+  end
+
+  def self.done
+    puts
+    header, content = "", ""
+    $ran.each do |k,v|
+      size = [k.size, v.size].max + 1
+      header << format("%#{size}s", k)
+      content << format("%#{size}s", v)
+    end
+    puts header
+    puts content
+  end
+end
+
+class BasePostController < ActionController::Base
+  append_view_path "#{File.dirname(__FILE__)}/views"
+
+  def overhead
+    self.response_body = ''
+  end
+
+  def index
+    render :text => ''
+  end
+
+  $OBJECT = {:name => "Hello my name is omg", :address => "333 omg"}
+
+  def partial
+    render :partial => "/collection", :object => $OBJECT
+  end
+
+  def partial_10
+    render :partial => "/ten_partials"
+  end
+
+  def partial_100
+    render :partial => "/hundred_partials"
+  end
+
+  $COLLECTION1 = []
+  10.times do |i|
+    $COLLECTION1 << { :name => "Hello my name is omg", :address => "333 omg" }
+  end
+
+  def coll_10
+    render :partial => "/collection", :collection => $COLLECTION1
+  end
+
+  $COLLECTION2 = []
+  100.times do |i|
+    $COLLECTION2 << { :name => "Hello my name is omg", :address => "333 omg" }
+  end
+
+  def coll_100
+    render :partial => "/collection", :collection => $COLLECTION2
+  end
+
+  def uniq_100
+    render :partial => $COLLECTION2
+  end
+
+  $COLLECTION3 = []
+  50.times do |i|
+    $COLLECTION3 << {:name => "Hello my name is omg", :address => "333 omg"}
+    $COLLECTION3 << MyHash.new(:name => "Hello my name is omg", :address => "333 omg")
+  end
+
+  def diff_100
+    render :partial => $COLLECTION3
+  end
+
+  def template_1
+    render :template => "template"
+  end
+
+  module Foo
+    def omg
+      "omg"
+    end
+  end
+
+  helper Foo
+end
+
+N = (ENV['N'] || 1000).to_i
+# ActionController::Base.use_accept_header = false
+
+def run_all!(times, verbose)
+  Runner.run(:overhead, times, verbose)
+  Runner.run(:index,       times, verbose)
+  Runner.run(:template_1,  times, verbose)
+  Runner.run(:partial,     times, verbose)
+  Runner.run(:partial_10,  times, verbose)
+  Runner.run(:coll_10,     times, verbose)
+  Runner.run(:partial_100, times, verbose)
+  Runner.run(:coll_100,    times, verbose)
+  Runner.run(:uniq_100,    times, verbose)
+  Runner.run(:diff_100,    times, verbose)
+end
+
+unless ENV["PROFILE"]
+  run_all!(1, false)
+
+  (ENV["M"] || 1).to_i.times do
+    $ran = []
+    run_all!(N, true)
+    Runner.done
+  end
+else
+  Runner.run(ENV["PROFILE"].to_sym, 1, false)
+  require "ruby-prof"
+  RubyProf.start
+  Runner.run(ENV["PROFILE"].to_sym, N, true)
+  result = RubyProf.stop
+  printer = RubyProf::CallStackPrinter.new(result)
+  printer.print(File.open("output.html", "w"))
+end
+\ No newline at end of file
diff --git a/actionpack/examples/views/_collection.erb b/actionpack/examples/views/_collection.erb
new file mode 100644
index 0000000000..cee3fe64c0
--- /dev/null
+++ b/actionpack/examples/views/_collection.erb
@@ -0,0 +1,3 @@
+<%= collection[:name] %>
+<%= collection[:address] %>
+<%= omg %>
+\ No newline at end of file
diff --git a/actionpack/examples/views/_hello.erb b/actionpack/examples/views/_hello.erb
new file mode 100644
index 0000000000..5ab2f8a432
--- /dev/null
+++ b/actionpack/examples/views/_hello.erb
@@ -0,0 +1 @@
+Hello
+\ No newline at end of file
diff --git a/actionpack/examples/views/_hundred_partials.erb b/actionpack/examples/views/_hundred_partials.erb
new file mode 100644
index 0000000000..35c2a6c9d3
--- /dev/null
+++ b/actionpack/examples/views/_hundred_partials.erb
@@ -0,0 +1,3 @@
+<% 100.times do %>
+  <%= render :partial => "/collection", :object => $OBJECT %>
+<% end %>
+\ No newline at end of file
diff --git a/actionpack/examples/views/_partial.erb b/actionpack/examples/views/_partial.erb
new file mode 100644
index 0000000000..3ca8e80b52
--- /dev/null
+++ b/actionpack/examples/views/_partial.erb
@@ -0,0 +1,10 @@
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
+<%= "Hello" %>
diff --git a/actionpack/examples/views/_ten_partials.erb b/actionpack/examples/views/_ten_partials.erb
new file mode 100644
index 0000000000..fd02991e22
--- /dev/null
+++ b/actionpack/examples/views/_ten_partials.erb
@@ -0,0 +1,10 @@
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+<%= render :partial => '/collection', :object => $OBJECT %>
+\ No newline at end of file
diff --git a/actionpack/examples/views/hashes/_hash.erb b/actionpack/examples/views/hashes/_hash.erb
new file mode 100644
index 0000000000..c100a290bd
--- /dev/null
+++ b/actionpack/examples/views/hashes/_hash.erb
@@ -0,0 +1,3 @@
+<%= hash[:name] %>
+<%= hash[:address] %>
+<%= omg %>
+\ No newline at end of file
diff --git a/actionpack/examples/views/my_hashes/_my_hash.erb b/actionpack/examples/views/my_hashes/_my_hash.erb
new file mode 100644
index 0000000000..e25d84101a
--- /dev/null
+++ b/actionpack/examples/views/my_hashes/_my_hash.erb
@@ -0,0 +1,3 @@
+<%= my_hash[:name] %>
+<%= my_hash[:address] %>
+<%= omg %>
+\ No newline at end of file
diff --git a/actionpack/examples/views/template.html.erb b/actionpack/examples/views/template.html.erb
new file mode 100644
index 0000000000..5ab2f8a432
--- /dev/null
+++ b/actionpack/examples/views/template.html.erb
@@ -0,0 +1 @@
+Hello
+\ No newline at end of file