From db045dbbf60b53dbe013ef25554fd013baf88134 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Wed, 24 Nov 2004 01:04:44 +0000
Subject: Initial

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/lib/action_controller/benchmarking.rb | 49 ++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 actionpack/lib/action_controller/benchmarking.rb

(limited to 'actionpack/lib/action_controller/benchmarking.rb')

diff --git a/actionpack/lib/action_controller/benchmarking.rb b/actionpack/lib/action_controller/benchmarking.rb
new file mode 100644
index 0000000000..e6ff65e150
--- /dev/null
+++ b/actionpack/lib/action_controller/benchmarking.rb
@@ -0,0 +1,49 @@
+require 'benchmark'
+
+module ActionController #:nodoc:
+  # The benchmarking module times the performance of actions and reports to the logger. If the Active Record
+  # package has been included, a separate timing section for database calls will be added as well.
+  module Benchmarking #:nodoc:
+    def self.append_features(base)
+      super
+      base.class_eval {
+        alias_method :perform_action_without_benchmark, :perform_action
+        alias_method :perform_action, :perform_action_with_benchmark
+
+        alias_method :render_without_benchmark, :render
+        alias_method :render, :render_with_benchmark
+      }
+    end
+
+    def render_with_benchmark(template_name = default_template_name, status = "200 OK")
+      if logger.nil?
+        render_without_benchmark(template_name, status)
+      else
+        @rendering_runtime = Benchmark::measure{ render_without_benchmark(template_name, status) }.real
+      end
+    end    
+
+    def perform_action_with_benchmark
+      if logger.nil?
+        perform_action_without_benchmark
+      else
+        runtime = [Benchmark::measure{ perform_action_without_benchmark }.real, 0.0001].max
+        log_message  = "Completed in #{sprintf("%4f", runtime)} (#{(1 / runtime).floor} reqs/sec)"
+        log_message << rendering_runtime(runtime) if @rendering_runtime
+        log_message << active_record_runtime(runtime) if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
+        logger.info(log_message)
+      end
+    end
+    
+    private
+      def rendering_runtime(runtime)
+        " | Rendering: #{sprintf("%f", @rendering_runtime)} (#{sprintf("%d", (@rendering_runtime / runtime) * 100)}%)"
+      end
+
+      def active_record_runtime(runtime)
+        db_runtime    = ActiveRecord::Base.connection.reset_runtime
+        db_percentage = (db_runtime / runtime) * 100
+        " | DB: #{sprintf("%f", db_runtime)} (#{sprintf("%d", db_percentage)}%)"
+      end
+  end
+end
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