diff --git a/spec/speed.rb b/spec/speed.rb
new file mode 100644
index 000000000..9f3f13a0b
--- /dev/null
+++ b/spec/speed.rb
@@ -0,0 +1,20 @@
+require "test_utils"
+
+describe "speed tests" do
+  extend LogStash::RSpec
+  count = 50000
+
+  config <<-CONFIG
+    input {
+      generator {
+        type => foo
+        count => #{count}
+      }
+    }
+    output { null { } }
+  CONFIG
+
+  agent do
+    puts "Rate: #{count / @duration}"
+  end
+end
diff --git a/spec/test_utils.rb b/spec/test_utils.rb
index 42c77d016..480ff1de7 100644
--- a/spec/test_utils.rb
+++ b/spec/test_utils.rb
@@ -66,11 +66,11 @@ module LogStash
       config_str = @config_str
       describe "agent(#{@agent_count}) #{caller[1]}" do
         before :all do
-          start = Time.now
+          start = ::Time.now
           @agent = LogStash::Agent.new
           @agent.run(["-e", config_str])
           @agent.wait
-          @duration = Time.now - start
+          @duration = ::Time.now - start
         end
         it("looks good", &block)
       end