use benchmark-ips

Gemfile

@@ -6,12 +6,13 @@ source 'https://rubygems.org'
 gemspec
 
 group :test, :development do
-  gem 'appraisal',   '~> 2.2'
-  gem 'coveralls',   '>= 0.7.0', require: false
-  gem 'pry',         '>= 0.10.0'
-  gem 'rake',        '>= 10.0'
-  gem 'rspec-rails', '>= 3.6.0'
-  gem 'rubocop',     '>= 0.41'
-  gem 'simplecov',   '>= 0.14.0', require: false
-  gem 'yardstick',   '>= 0.9.0'
+  gem 'appraisal',     '~> 2.2'
+  gem 'benchmark-ips', '~> 2.0', '>= 2.7.2'
+  gem 'coveralls',     '>= 0.7.0', require: false
+  gem 'pry',           '>= 0.10.0'
+  gem 'rake',          '>= 10.0'
+  gem 'rspec-rails',   '>= 3.6.0'
+  gem 'rubocop',       '>= 0.41'
+  gem 'simplecov',     '>= 0.14.0', require: false
+  gem 'yardstick',     '>= 0.9.0'
 end

benchmarks/allowable.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
-require 'benchmark'
 require 'bundler/setup'
+require 'benchmark/ips'
 require 'allowable'
 require 'action_controller'
 
@@ -12,7 +12,7 @@
 hash = {}
 allow_filters = {}
 
-1_000_000.times do |n|
+100.times do |n|
   hash[n] = n
   allow_filters[n] = n + 1
 end
@@ -21,7 +21,7 @@
 
 params = ActionController::Parameters.new(hash)
 
-Benchmark.bmbm do |bm|
+Benchmark.ips do |bm|
   bm.report('Hash#allow') { hash.allow(allow_filters) }
   bm.report('Hash#forbid') { hash.forbid(forbid_filters) }
 
@@ -32,4 +32,6 @@
   bm.report('ActionController::Parameters#forbid') do
     params.forbid(forbid_filters)
   end
+
+  bm.compare!
 end