1 files changed, 57 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/testing/performance/ruby/yarv.rb b/activesupport/lib/active_support/testing/performance/ruby/yarv.rb
new file mode 100644
index 0000000000..62095a8fe4
--- /dev/null
+++ b/activesupport/lib/active_support/testing/performance/ruby/yarv.rb
@@ -0,0 +1,57 @@
+module ActiveSupport
+  module Testing
+    module Performance
+      module Metrics
+        class Base
+          protected
+            # Ruby 1.9 with GC::Profiler
+            if defined?(GC::Profiler)
+              def with_gc_stats
+                GC::Profiler.enable
+                GC.start
+                yield
+              ensure
+                GC::Profiler.disable
+              end
+            end
+        end
+        
+        class Memory < DigitalInformationUnit
+          # Ruby 1.9 + GCdata patch
+          if GC.respond_to?(:malloc_allocated_size)
+            def measure
+              GC.malloc_allocated_size
+            end
+          end
+        end
+          
+        class Objects < Amount
+          # Ruby 1.9 + GCdata patch
+          if GC.respond_to?(:malloc_allocations)
+            def measure
+              GC.malloc_allocations
+            end
+          end
+        end
+        
+        class GcRuns < Amount
+          # Ruby 1.9
+          if GC.respond_to?(:count)
+            def measure
+              GC.count
+            end
+          end
+        end
+        
+        class GcTime < Time
+          # Ruby 1.9 with GC::Profiler
+          if defined?(GC::Profiler) && GC::Profiler.respond_to?(:total_time)
+            def measure
+              GC::Profiler.total_time
+            end
+          end
+        end
+      end
+    end
+  end
+end