Module: ActionController::Profiling

Defined in:
lib/ruby-prof/rails_plugin/ruby-prof/lib/profiling.rb

Overview

The ruby-prof 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.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object

:nodoc:



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# File 'lib/ruby-prof/rails_plugin/ruby-prof/lib/profiling.rb', line 7

def self.included(base)
  base.class_eval do
    alias_method_chain :perform_action, :profiling
  end
end

Instance Method Details

#perform_action_with_profiling ⇒ Object 



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# File 'lib/ruby-prof/rails_plugin/ruby-prof/lib/profiling.rb', line 13

def perform_action_with_profiling
  if not logger or
     not logger.level == Logger::DEBUG
    perform_action_without_profiling
  else
    result = RubyProf.profile do
      perform_action_without_profiling
    end
    
    output = StringIO.new
    output << " [#{complete_request_uri rescue "unknown"}]"
    output << "\n\n"
    
    # Create a flat printer
    printer = RubyProf::FlatPrinter.new(result)
    
    # Skip anything less than 1% - which is a lot of
    # stuff in Rails. Don't print the source file
    # its too noisy.
    printer.print(output, {:min_percent => 1,
                           :print_file => false})
    logger.info(output.string)
    
    ## Example for Graph html printer
    #printer = RubyProf::GraphHtmlPrinter.new(result)
    #File.open('c:/temp/request.html', 'w') do |file|
      #printer.print(file, {:min_percent => 1,
                           #:print_file => true})
    #end   
    
    ## Used for KCacheGrind visualizations
    #printer = RubyProf::CallTreePrinter.new(result)
    #File.open('c:/temp/callgrind.out', 'w') do |file|
      #printer.print(file, {:min_percent => 1,
                             #:print_file => true})
    #end          
  end
end