perf.rb

require "benchmark"
load 'old_callbacks.rb'
load 'lib/active_support/callbacks.rb'

GC.disable


module Definition
  def self.included(base)
    base.class_eval do
      define_callbacks :save

      10.times do
        set_callback :save, :before, :before_save1
        set_callback :save, :after, :after_save1
        set_callback :save, :around, :around_save1
      end

      def before_save1;nil; end
      def after_save1; nil; end
      def around_save1; nil; end

      def save(key = nil)
        if respond_to?(:__define_runner) 
          run_callbacks :save, key do
            true
          end
        else
          run_callbacks :save, key do
            true
          end
        end
      end

    end
  end
end

class OldClass
  include ActiveSupport::OldCallbacks
end

class NewClass
  include ActiveSupport::Callbacks
end

amount = 10
Benchmark.bmbm do |x|
  x.report "New set_callback" do
    amount.times do
      Class.new do
        include ActiveSupport::Callbacks
        include Definition
      end
    end
  end
  x.report "Old set_callback" do
    amount.times do
      Class.new do
        include ActiveSupport::OldCallbacks
        include Definition
      end
    end
  end
end

puts "*" * 120

old_klass = Class.new do
  include ActiveSupport::OldCallbacks
end
new_klass = Class.new do
  include ActiveSupport::Callbacks
end

amount = 100
Benchmark.bmbm do |x|
  x.report "New define_callbacks" do
    amount.times do |i|
      old_klass.send(:define_callbacks, :"save#{i}")
    end
  end
  x.report "Old define_callbacks" do
    amount.times do |i|
      new_klass.send(:define_callbacks, :"save#{i}")
    end
  end
end

puts "*" * 120

class OldClass
  include ActiveSupport::OldCallbacks
  include Definition
end
old = OldClass.new

class NewClass
  include ActiveSupport::Callbacks
  include Definition
end
new = NewClass.new

amount = 1000
Benchmark.bmbm do |x|
  x.report "New run_callbacks" do
    amount.times do
      new.save
    end
  end
  x.report "Old run_callbacks" do
    amount.times do
      old.save
    end
  end
end

puts "*" * 120
amount = 100
Benchmark.bmbm do |x|
  x.report "New run_callbacks with key" do
    amount.times do |index|
      new.save "key#{index % 4}"
    end
  end
  x.report "Old run_callbacks with key" do
    amount.times do |index|
      old.save "key#{index % 4}"
    end
  end
end


puts "*" * 120
amount = 100
Benchmark.bmbm do |x|
  x.report "New skip_callback" do
    klass = Class.new do
      include ActiveSupport::Callbacks
      include Definition
    end
    amount.times do |index|
      klass.skip_callback :save, :before, :before_save1, :if => "false"
    end
  end
  x.report "Old skip_callback" do
    klass = Class.new do
      include ActiveSupport::OldCallbacks
      include Definition
    end
    amount.times do |index|
      klass.skip_callback :save, :before, :before_save1, :if => "false"
    end
  end
end

GC.enable