4e14ccc74d
Instiki now runs on the Rails 2.3.0 Candidate Release.
Among other improvements, this means that it now
automagically selects between WEBrick and Mongrel.
Just run
./instiki --daemon
55 lines
2.2 KiB
Ruby
55 lines
2.2 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 (345.2ms)" 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 :level option.
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# (:debug, :info, :warn, :error); the default value is :info.
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#
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# <% benchmark "Low-level files", :level => :debug do %>
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# <%= lowlevel_files_operation %>
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# <% end %>
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#
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# Finally, you can pass true as the third argument to silence all log activity
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# inside the block. This is great for boiling down a noisy block to just a single statement:
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#
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# <% benchmark "Process data files", :level => :info, :silence => true do %>
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# <%= expensive_and_chatty_files_operation %>
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# <% end %>
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def benchmark(message = "Benchmarking", options = {})
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if controller.logger
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if options.is_a?(Symbol)
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ActiveSupport::Deprecation.warn("use benchmark('#{message}', :level => :#{options}) instead", caller)
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options = { :level => options, :silence => false }
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else
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options.assert_valid_keys(:level, :silence)
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options[:level] ||= :info
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end
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result = nil
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ms = Benchmark.ms { result = options[:silence] ? controller.logger.silence { yield } : yield }
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controller.logger.send(options[:level], '%s (%.1fms)' % [ message, ms ])
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result
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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
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