Rewrite benchmark with rbench

Gemfile

@@ -2,3 +2,5 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in hamilton.gemspec
 gemspec
+
+gem 'rbench', github: 'miloops/rbench'

Rakefile

@@ -1,5 +1,9 @@
 require "bundler/gem_tasks"
 
 task :bench do
-  system('bundle exec ruby benchmarks/benchmark.rb')
+  system('TIME=20 bundle exec ruby benchmarks/benchmark.rb')
+end
+
+task :rbench do
+  system('NUM=200000 bundle exec ruby benchmarks/rbench.rb')
 end

benchmarks/benchmark.rb

@@ -14,8 +14,9 @@ require 'tenjin'
 require 'tilt'
 
 class Benchmarks
-  def initialize
-    @benches    = []
+  def initialize(time)
+    @time    = time
+    @benches = []
 
     @erb_code    = File.read(File.dirname(__FILE__) + '/view.erb')
     @haml_code   = File.read(File.dirname(__FILE__) + '/view.haml')
@@ -57,6 +58,7 @@ class Benchmarks
 
   def run
     Benchmark.ips do |x|
+      x.config(time: @time, warmup: 2)
       @benches.each do |name, block|
         x.report(name, &block)
       end
@@ -69,4 +71,5 @@ class Benchmarks
   end
 end
 
-Benchmarks.new.run
+time = (ENV['TIME'] || 5).to_i
+Benchmarks.new(time).run

benchmarks/rbench.rb

@@ -0,0 +1,57 @@
+require_relative './context'
+require 'rbench'
+
+require 'erb'
+require 'erubis'
+require 'fast_haml'
+require 'haml'
+require 'slim'
+require 'tenjin'
+require 'tilt'
+
+iteration = (ENV['NUM'] || 100000).to_i
+RBench.run(iteration) do
+  column :erubis,      title: 'erubis'
+  column :tenjin,      title: 'tenjin'
+  column :fast_haml,   title: 'fast_haml'
+  column :fast_erubis, title: 'fast erubis'
+  column :slim,        title: 'slim'
+  column :temple_erb,  title: 'temple erb'
+  column :erb,         title: 'erb'
+  column :haml,        title: 'haml'
+
+  @erb_code    = File.read(File.dirname(__FILE__) + '/view.erb')
+  @haml_code   = File.read(File.dirname(__FILE__) + '/view.haml')
+  @slim_code   = File.read(File.dirname(__FILE__) + '/view.slim')
+  @rbhtml_path = File.dirname(__FILE__) + '/view.rbhtml'
+
+  erb         = ERB.new(@erb_code)
+  erubis      = Erubis::Eruby.new(@erb_code)
+  fast_erubis = Erubis::FastEruby.new(@erb_code)
+  haml_ugly   = Haml::Engine.new(@haml_code, format: :html5, ugly: true)
+  tenjin      = Tenjin::Engine.new.get_template(@rbhtml_path)
+
+  context = Context.new
+
+  haml_ugly.def_method(context, :run_haml_ugly)
+  context.instance_eval %{
+    def run_erb; #{erb.src}; end
+    def run_erubis; #{erubis.src}; end
+    def run_temple_erb; #{Temple::ERB::Engine.new.call @erb_code}; end
+    def run_fast_erubis; #{fast_erubis.src}; end
+    def run_slim_ugly; #{Slim::Engine.new.call @slim_code}; end
+    def run_fast_haml; #{FastHaml::Engine.new.call @haml_code}; end
+    def run_tenjin; _buf = ''; #{tenjin.script}; end
+  }
+
+  report 'precompiled' do
+    erubis      { context.run_erubis }
+    tenjin      { context.run_tenjin }
+    fast_haml   { context.run_fast_haml }
+    fast_erubis { context.run_fast_erubis }
+    slim        { context.run_slim_ugly }
+    temple_erb  { context.run_temple_erb }
+    erb         { context.run_erb }
+    haml        { context.run_haml_ugly }
+  end
+end

hamilton.gemspec

@@ -23,6 +23,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "erubis"
   spec.add_development_dependency "fast_haml"
   spec.add_development_dependency "haml"
+  spec.add_development_dependency "pry"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "slim"
   spec.add_development_dependency "tenjin"