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unfreeze rails

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Reinier Balt 2010-09-27 21:00:18 +02:00
parent 514045e8cb
commit ee751a5ced
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107
vendor/rails/actionpack/lib/action_controller/benchmarking.rb vendored
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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.included(base)
base.extend(ClassMethods)
base.class_eval do
alias_method_chain :perform_action, :benchmark
alias_method_chain :render, :benchmark
end
end
module ClassMethods
# Log and benchmark the workings of a single block and silence whatever logging that may have happened inside it
# (unless <tt>use_silence</tt> is set to false).
#
# The benchmark is only recorded if the current level of the logger matches the <tt>log_level</tt>, which makes it
# easy to include benchmarking statements in production software that will remain inexpensive because the benchmark
# will only be conducted if the log level is low enough.
def benchmark(title, log_level = Logger::DEBUG, use_silence = true)
if logger && logger.level == log_level
result = nil
ms = Benchmark.ms { result = use_silence ? silence { yield } : yield }
logger.add(log_level, "#{title} (#{('%.1f' % ms)}ms)")
result
else
yield
end
end
# Silences the logger for the duration of the block.
def silence
old_logger_level, logger.level = logger.level, Logger::ERROR if logger
yield
ensure
logger.level = old_logger_level if logger
end
end
protected
def render_with_benchmark(options = nil, extra_options = {}, &block)
if logger
if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
db_runtime = ActiveRecord::Base.connection.reset_runtime
end
render_output = nil
@view_runtime = Benchmark.ms { render_output = render_without_benchmark(options, extra_options, &block) }
if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
@db_rt_before_render = db_runtime
@db_rt_after_render = ActiveRecord::Base.connection.reset_runtime
@view_runtime -= @db_rt_after_render
end
render_output
else
render_without_benchmark(options, extra_options, &block)
end
end
private
def perform_action_with_benchmark
if logger
ms = [Benchmark.ms { perform_action_without_benchmark }, 0.01].max
logging_view = defined?(@view_runtime)
logging_active_record = Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
log_message = 'Completed in %.0fms' % ms
if logging_view || logging_active_record
log_message << " ("
log_message << view_runtime if logging_view
if logging_active_record
log_message << ", " if logging_view
log_message << active_record_runtime + ")"
else
")"
end
end
log_message << " | #{response.status}"
log_message << " [#{complete_request_uri rescue "unknown"}]"
logger.info(log_message)
response.headers["X-Runtime"] = "%.0f" % ms
else
perform_action_without_benchmark
end
end
def view_runtime
"View: %.0f" % @view_runtime
end
def active_record_runtime
db_runtime = ActiveRecord::Base.connection.reset_runtime
db_runtime += @db_rt_before_render if @db_rt_before_render
db_runtime += @db_rt_after_render if @db_rt_after_render
"DB: %.0f" % db_runtime
end
end
end