Benchmark

benchmark.rb

require "benchmark"
require "mongoid"
require "./perf/models"

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

Mongoid.master.collections.select {|c| c.name !~ /system/ }.each(&:drop)

puts "Creating indexes..."

[ Person, Post, Game, Preference ].each(&:create_indexes)

puts "Starting benchmark..."

Benchmark.bm do |bm|

  puts "\n[ Root Document Benchmarks ]"

  [ 1000, 10000, 100000, 1000000 ].each do |i|

    Mongoid.unit_of_work do

      puts "[ #{i} ]"

      bm.report("#new           ") do
        i.times do |n|
          Person.new
        end
      end
    end
  end
end

mongoid_benchmark.txt

# 1.9.2 p180
Creating indexes...
Starting benchmark...
      user     system      total        real

[ Root Document Benchmarks ]
[ 1000 ]
#new             0.090000   0.000000   0.090000 (  0.094167)
[ 10000 ]
#new             0.930000   0.000000   0.930000 (  0.932674)
[ 100000 ]
#new             9.400000   0.030000   9.430000 (  9.608434)
[ 1000000 ]
#new            93.440000   0.250000  93.690000 ( 94.889635)


# REE 2011.03
Creating indexes...
Starting benchmark...
      user     system      total        real

[ Root Document Benchmarks ]
[ 1000 ]
#new             0.080000   0.000000   0.080000 (  0.084479)
[ 10000 ]
#new             1.060000   0.040000   1.100000 (  1.099856)
[ 100000 ]
#new            10.430000   0.380000  10.810000 ( 11.031532)
[ 1000000 ]
#new           104.220000   3.770000 107.990000 (109.554233)


# 1.9.3.preview1
Creating indexes...
Starting benchmark...
       user     system      total        real

[ Root Document Benchmarks ]
[ 1000 ]
#new             0.080000   0.000000   0.080000 (  0.084575)
[ 10000 ]
#new             0.850000   0.010000   0.860000 (  0.860616)
[ 100000 ]
#new             8.620000   0.010000   8.630000 (  8.637046)
[ 1000000 ]
#new            86.470000   0.180000  86.650000 ( 87.349074)


# jruby-1.6.2
Creating indexes...
Starting benchmark...
      user     system      total        real

[ Root Document Benchmarks ]
[ 1000 ]
#new             0.767000   0.000000   0.767000 (  0.767000)
[ 10000 ]
#new             3.646000   0.000000   3.646000 (  3.646000)
[ 100000 ]
#new            15.054000   0.000000  15.054000 ( 15.054000)
[ 1000000 ]
#new           142.024000   0.000000 142.024000 (142.024000)


# rbx-head
Creating indexes...
Starting benchmark...
      user     system      total        real

[ Root Document Benchmarks ]
[ 1000 ]
#new             0.131273   0.001299   0.132572 (  0.280259)
[ 10000 ]
#new             1.382158   0.014398   1.396556 (  2.560097)
[ 100000 ]
#new            13.029592   0.070919  13.100511 ( 20.573260)
[ 1000000 ]
#new           147.408825   0.482304 147.891129 (192.847959)