FactoryGirl.build on a PORO with no defined attributes vs #new

benchmark.rb

require 'perftools'
TIMES = 100_000

Benchmark.bm do |bm|
  bm.report 'FactoryGirl.build' do
    PerfTools::CpuProfiler.start("factorygirl") do
      TIMES.times { FactoryGirl.build :loans_search_form }
    end
  end

  bm.report 'new' do
    PerfTools::CpuProfiler.start("new") do
      TIMES.times { LoansSearchForm.new }
    end
  end
end

factory.rb

FactoryGirl.define do
  factory :loans_search_form do
  end
end