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