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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.append_features(base)
super
base.class_eval {
alias_method :perform_action_without_benchmark, :perform_action
alias_method :perform_action, :perform_action_with_benchmark
alias_method :render_without_benchmark, :render
alias_method :render, :render_with_benchmark
}
end
def render_with_benchmark(options = nil, deprecated_status = nil)
unless logger
render_without_benchmark(options, deprecated_status)
else
db_runtime = ActiveRecord::Base.connection.reset_runtime if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
render_output = nil
@rendering_runtime = Benchmark::measure{ render_output = render_without_benchmark(options, deprecated_status) }.real
if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
@db_rt_before_render = db_runtime
@db_rt_after_render = ActiveRecord::Base.connection.reset_runtime
@rendering_runtime -= @db_rt_after_render
end
render_output
end
end
def perform_action_with_benchmark
unless logger
perform_action_without_benchmark
else
runtime = [Benchmark::measure{ perform_action_without_benchmark }.real, 0.0001].max
log_message = "Completed in #{sprintf("%.5f", runtime)} (#{(1 / runtime).floor} reqs/sec)"
log_message << rendering_runtime(runtime) if @rendering_runtime
log_message << active_record_runtime(runtime) if Object.const_defined?("ActiveRecord") && ActiveRecord::Base.connected?
log_message << " [#{complete_request_uri}]"
logger.info(log_message)
end
end
private
def rendering_runtime(runtime)
" | Rendering: #{sprintf("%.5f", @rendering_runtime)} (#{sprintf("%d", (@rendering_runtime * 100) / runtime)}%)"
end
def active_record_runtime(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_percentage = (db_runtime * 100) / runtime
" | DB: #{sprintf("%.5f", db_runtime)} (#{sprintf("%d", db_percentage)}%)"
end
end
end
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