instiki/vendor/rails/actionpack/lib/action_view/helpers/benchmark_helper.rb
Jacques Distler 6873fc8026 Upgrade to Rails 2.0.2
Upgraded to Rails 2.0.2, except that we maintain

   vendor/rails/actionpack/lib/action_controller/routing.rb

from Rail 1.2.6 (at least for now), so that Routes don't change. We still
get to enjoy Rails's many new features.

Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
2007-12-21 01:48:59 -06:00

32 lines
1.2 KiB
Ruby

require 'benchmark'
module ActionView
module Helpers
# This helper offers a method to measure the execution time of a block
# in a template.
module BenchmarkHelper
# Allows you to measure the execution time of a block
# in a template and records the result to the log. Wrap this block around
# expensive operations or possible bottlenecks to get a time reading
# for the operation. For example, let's say you thought your file
# processing method was taking too long; you could wrap it in a benchmark block.
#
# <% benchmark "Process data files" do %>
# <%= expensive_files_operation %>
# <% end %>
#
# That would add something like "Process data files (0.34523)" to the log,
# which you can then use to compare timings when optimizing your code.
#
# You may give an optional logger level as the second argument
# (:debug, :info, :warn, :error); the default value is :info.
def benchmark(message = "Benchmarking", level = :info)
if @logger
real = Benchmark.realtime { yield }
@logger.send level, "#{message} (#{'%.5f' % real})"
end
end
end
end
end