Add 'benchmark-ips' as development dependency.

Author: marshall-lee

benchmark/simple.rb

@@ -1,6 +1,6 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 require 'grape'
-require 'benchmark'
+require 'benchmark/ips'
 
 class API < Grape::API
   prefix :api
@@ -20,12 +20,8 @@ class API < Grape::API
   env["HTTP_HEADER#{i}"] = '123'
 end
 
-iters = 5000
-
-Benchmark.bm do |bm|
-  bm.report('simple') do
-    iters.times do
-      API.call env
-    end
+Benchmark.ips do |ips|
+  ips.report('simple') do
+    API.call env
   end
 end

grape.gemspec

@@ -33,6 +33,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rack-contrib'
   s.add_development_dependency 'mime-types'
   s.add_development_dependency 'appraisal'
+  s.add_development_dependency 'benchmark-ips'
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")