3 files changed, 68 insertions, 6 deletions
diff --git a/activesupport/lib/active_support/testing/performance.rb b/activesupport/lib/active_support/testing/performance.rb
index a7faf6267a..ae78fafe78 100644
--- a/activesupport/lib/active_support/testing/performance.rb
+++ b/activesupport/lib/active_support/testing/performance.rb
@@ -271,10 +271,11 @@ module ActiveSupport
   end
 end
 
-RUBY_ENGINE = "ruby" unless defined?(RUBY_ENGINE)
+RUBY_ENGINE = 'ruby' unless defined?(RUBY_ENGINE) # mri 1.8
 case RUBY_ENGINE
-  when "ruby" then require 'active_support/testing/performance/ruby'
+  when 'ruby'     then require 'active_support/testing/performance/ruby'
+  when 'rubinius' then require 'active_support/testing/performance/rubinius'
   else
-    $stderr.puts "Your ruby interpreter is not supported for benchmarking."
+    $stderr.puts 'Your ruby interpreter is not supported for benchmarking.'
     exit
 end
diff --git a/activesupport/lib/active_support/testing/performance/rubinius.rb b/activesupport/lib/active_support/testing/performance/rubinius.rb
new file mode 100644
index 0000000000..c6725b988a
--- /dev/null
+++ b/activesupport/lib/active_support/testing/performance/rubinius.rb
@@ -0,0 +1,61 @@
+module ActiveSupport
+  module Testing
+    module Performance
+      protected
+        def run_gc
+        end
+
+      module Metrics
+        class Base
+          def profile
+            yield
+          end
+
+          protected
+            def with_gc_stats
+              yield
+            end
+        end
+        
+        class Time < Base; end
+        
+        class ProcessTime < Time
+          def measure; 0; end
+        end
+
+        class WallTime < Time
+          def measure; 0; end
+        end
+
+        class CpuTime < Time
+          def measure; 0; end
+        end
+
+        class Memory < Base
+          def measure; 0; end
+        end
+
+        class Objects < Amount
+          def measure; 0; end
+        end
+
+        class GcRuns < Amount
+          def measure; 0; end
+        end
+
+        class GcTime < Time
+          def measure; 0; end
+        end
+      end
+    end
+  end
+end
+
+if RUBY_VERSION >= '1.9.2'
+  require 'active_support/testing/performance/ruby/yarv'
+elsif RUBY_VERSION >= '1.8.6'
+  require 'active_support/testing/performance/ruby/mri'
+else
+  $stderr.puts 'Update your ruby interpreter to be able to run benchmarks.'
+  exit
+end
diff --git a/activesupport/lib/active_support/testing/performance/ruby.rb b/activesupport/lib/active_support/testing/performance/ruby.rb
index 86287b2d45..f786b85925 100644
--- a/activesupport/lib/active_support/testing/performance/ruby.rb
+++ b/activesupport/lib/active_support/testing/performance/ruby.rb
@@ -157,11 +157,11 @@ module ActiveSupport
   end
 end
 
-if RUBY_VERSION >= "1.9.2"
+if RUBY_VERSION >= '1.9.2'
   require 'active_support/testing/performance/ruby/yarv'
-elsif RUBY_VERSION >= "1.8.6"
+elsif RUBY_VERSION >= '1.8.6'
   require 'active_support/testing/performance/ruby/mri'
 else
-  $stderr.puts "Update your ruby interpreter to be able to run benchmarks."
+  $stderr.puts 'Update your ruby interpreter to be able to run benchmarks.'
   exit
 end