benchmark: dm-redis-adapter vs. ohm

gistfile1.rb

require 'benchmark'
require 'ohm'
require 'datamapper'
require 'dm-redis-adapter'

Ohm.connect
DataMapper.setup(:default, {:adapter  => "redis"}) 

class DMUser
  include DataMapper::Resource

  property :id, Serial
  property :username,      String
  property :email,      String
end

class OhmUser < Ohm::Model
  attribute :username
  attribute :email    
end
  
n = 500
Benchmark.bm do |x|
  x.report("Datamapper creates") {
    n.times do
      DMUser.create(:username => "ian", :email => '[email protected]').save!
    end
  }
  x.report("Ohm creates") {
    n.times do
      OhmUser.create(:username => "ian", :email => '[email protected]').save
    end
  }
  
  x.report("Datamapper reads") {
    n.times do
      DMUser.all
    end
  }
  x.report("Ohm reads") {
    n.times do
      OhmUser.all
    end
  }
end