gistfile1.rb

require 'rubygems'
require 'benchmark'
require 'mongo_mapper'
require 'mongoid'


# With GC enabled
# Rehearsal -----------------------------------------------------------
# mongomapper creates       0.350000   0.010000   0.360000 (  0.374451)
# Mongoid creates           0.210000   0.000000   0.210000 (  0.224762)
# Mongomapper reads         0.480000   0.020000   0.500000 (  0.685909)
# Mongoid reads             0.230000   0.020000   0.250000 (  0.427573)
# Mongomapper reads - all  46.170000   1.390000  47.560000 ( 48.424656)
# Mongoid reads            12.840000   1.250000  14.090000 ( 14.581846)
# ------------------------------------------------- total: 62.970000sec
# 
# user     system      total        real
# mongomapper creates       0.280000   0.000000   0.280000 (  0.297822)
# Mongoid creates           0.150000   0.010000   0.160000 (  0.152701)
# Mongomapper reads         0.370000   0.020000   0.390000 (  0.584758)
# Mongoid reads             0.160000   0.010000   0.170000 (  0.351070)
# Mongomapper reads - all  92.590000   2.740000  95.330000 ( 97.169594)
# Mongoid reads            25.600000   2.460000  28.060000 ( 28.976055)

MongoMapper.connection = Mongo::Connection.new
MongoMapper.database   = "benchmarkitation"

Mongoid.configure do |config|
  config.master = Mongo::Connection.new.db("benchmarkitation")
end

class MongoUser
  include MongoMapper::Document

  key :username, String
  key :email,    String
  key :position, Integer
end

class MongoidUser
  include Mongoid::Document
  
  field :username, :type => String
  field :email,    :type => String
  field :position, :type => Integer
end

n = 500
Benchmark.bmbm do |x|
  data = {:username => "ian", :email => '[email protected]'}

  MongoUser.collection.drop
  x.report("mongomapper creates") {
    n.times do |pos|
      user = MongoUser.new(data)
      user.position = pos
      user.save!
    end
  }

  MongoidUser.collection.drop
  x.report("Mongoid creates") {
    n.times do |pos|
      user = MongoidUser.new(data)
      user.position = pos
      user.save
    end
  }
  
  x.report("Mongomapper reads") {
    n.times do |pos|
      MongoUser.where(:position => pos).first.inspect
    end
  }

  x.report("Mongoid reads") {
    n.times do |pos|
      MongoidUser.where(:position => pos).first.inspect
    end
  }

  x.report("Mongomapper reads - all") {
    n.times do
      MongoUser.all.each(&:position)
    end
  }

  x.report("Mongoid reads - all") {
    n.times do
      MongoidUser.all.each(&:position)
    end
  }

end