Module: Spider::Profiling

Defined in:
lib/spiderfw/utils/profiling.rb

Class Method Summary collapse

Class Method Details

.start ⇒ Object 



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# File 'lib/spiderfw/utils/profiling.rb', line 5

def self.start
    raise "Profiling already started" if @profiling_started
    unless Spider.request_mutex
        Spider.mutex_requests!
        Spider.request_mutex.lock
    end
    require 'ruby-prof'
    Spider.logger.debug("Starting profiling")
    @profiling_started = true
    RubyProf.start
end

.started? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spiderfw/utils/profiling.rb', line 30

def self.started?
    @profiling_started
end

.stop ⇒ Object 



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# File 'lib/spiderfw/utils/profiling.rb', line 17

def self.stop
    result = RubyProf.stop
    @profiling_started = false
    printer = ::RubyProf::GraphHtmlPrinter.new(result)
    file_name = Spider.paths[:tmp]+"/prof_#{DateTime.now.to_s}.html"
    File.open(file_name, 'w') do |f|
        printer.print(f, :min_percent => 0)
    end
    Spider.logger.info("Written profiling info in #{file_name}")
    Spider.request_mutex.unlock
    Spider.request_mutex = nil
end