Sinatra memory usage - part 2 (dup change)

Sintra log

∴ ruby subclass.rb
== Sinatra/1.4.2 has taken the stage on 4567 for development with backup from Thin
>> Thin web server (v1.5.1 codename Straight Razor)
>> Maximum connections set to 1024
>> Listening on localhost:4567, CTRL+C to stop
---- Init myApp
-- Setting up @array id 70222006630940
-- Starting GC
 ---- Waiting in memory (93296): #<MyApp:0x007fbbab031538 @default_layout=:layout, @app=nil, @template_cache=#<Tilt::Cache:0x007fbbab031308 @cache={}>, @env={"SERVER_SOFTWARE"=>"thin
-- Setting up @array id 70222007258980
-- Starting GC
****** GC Array(70222006630940) Starting
 ---- Waiting in memory (93296): #<MyApp:0x007fbbab031538 @default_layout=:layout, @app=nil, @template_cache=#<Tilt::Cache:0x007fbbab031308 @cache={}>, @env={"SERVER_SOFTWARE"=>"thin
-- Setting up @array id 70222002441220
-- Starting GC
 ---- Waiting in memory (93296): #<MyApp:0x007fbbab031538 @default_layout=:layout, @app=nil, @template_cache=#<Tilt::Cache:0x007fbbab031308 @cache={}>, @env={"SERVER_SOFTWARE"=>"thin
****** GC Array(70222007258980) Starting
^C>> Stopping ...

== Sinatra has ended his set (crowd applauds)
****** GC Array(70222002441220) Starting

subclass.rb

# ruby-head only

require 'sinatra/base'
require 'objspace'

class MyApp < Sinatra::Base

  def initialize(*args)
    puts "---- Init myApp"
    super(*args)
  end

  def call(env)
    # default #call uses:
    # dup.call!(env)
    call!(env)
  end

  get '/' do
    # Changed to member variable.
    @array = []
    10000.times do
      @array << Object.new
    end

    puts "-- Setting up @array id #{@array.object_id}"
    ObjectSpace.define_finalizer(@array, proc {|id| puts "****** GC Array(#{id}) Starting" })

    @array.size.to_s
  end

  after do
    puts "-- Starting GC"
    ObjectSpace.each_object(MyApp) do |obj|
      sz = ObjectSpace.reachable_objects_from(obj).map{|o| ObjectSpace.memsize_of(o) }.inject{|sum, x| sum + x }
      puts " ---- Waiting in memory (#{sz}): #{obj.inspect.to_s.slice(0,150)}"
    end
    GC.start
  end

end

MyApp.run!