diff --git a/lib/language_pack/rails3.rb b/lib/language_pack/rails3.rb
index a5984f2..60d7ca8 100644
--- a/lib/language_pack/rails3.rb
+++ b/lib/language_pack/rails3.rb
@@ -47,12 +47,12 @@ def run_assets_precompile_rake_task
           ENV["RAILS_ENV"]    ||= "production"
 
           puts "Running: rake assets:precompile"
-          rake_output = ""
-          rake_output << run("env PATH=$PATH:bin bundle exec rake assets:precompile 2>&1")
-          puts rake_output
+          require 'benchmark'
+          time = Benchmark.realtime { pipe("env PATH=$PATH:bin bundle exec rake assets:precompile 2>&1") }
 
           if $?.success?
             log "assets_precompile", :status => "success"
+            puts "Asset precompilation completed (#{"%.2f" % time}s)"
           else
             log "assets_precompile", :status => "failure"
             puts "Precompiling assets failed, enabling runtime asset compilation"
diff --git a/lib/language_pack/ruby.rb b/lib/language_pack/ruby.rb
index 8e42894..66b5b7a 100644
--- a/lib/language_pack/ruby.rb
+++ b/lib/language_pack/ruby.rb
@@ -496,8 +496,13 @@ def add_node_js_binary
 
   def run_assets_precompile_rake_task
     if rake_task_defined?("assets:precompile")
+      require 'benchmark'
+
       topic "Running: rake assets:precompile"
-      pipe("env PATH=$PATH:bin bundle exec rake assets:precompile 2>&1")
+      time = Benchmark.realtime { pipe("env PATH=$PATH:bin bundle exec rake assets:precompile 2>&1") }
+      if $?.success?
+        puts "Asset precompilation completed (#{"%.2f" % time}s)"
+      end
     end
   end
 end