gistfile1.txt

require "rubygems"
require "mongo_mapper"
require 'benchmark'

count = 1000000

MongoMapper.connection = Mongo::Connection.new('localhost')
MongoMapper.database = 'benchmark'

class Person
  include MongoMapper::Document
  
  key :name, String
  key :email, String
  key :street, String
  key :city, String
  key :zip, String
end

Benchmark.bm(10) do |x|
  x.report("base") do
    count.to_i.times do |i|
      object = {
        :name   => "bob#{i}", 
        :email  => "bob#{i}@bob.com", 
        :street => "street#{i}", 
        :city   => "city#{i}",
        :zip    => "#{rand(i)}"
      }
      # r[i] = object
    end
  end
  x.report("write") do
    count.to_i.times do |i|
      object = {
        :name   => "bob#{i}", 
        :email  => "bob#{i}@bob.com", 
        :street => "street#{i}", 
        :city   => "city#{i}",
        :zip    => "#{rand(i)}"
      }
      person = Person.create(object)
    end
  end
  x.report("read") do
    count.to_i.times do |i|
      Person.find(i)
    end
  end  
end

#                 user     system      total        real
# base        8.890000   0.080000   8.970000 (  8.996704)
# write     868.050000  34.060000 902.110000 (910.455185)
# read      450.220000  30.440000 480.660000 (560.226702)