Class: Tuttle::RubyProf::FastCallStackPrinter

Inherits:
RubyProf::CallStackPrinter
  • Object
show all
Defined in:
lib/tuttle/ruby_prof/fast_call_stack_printer.rb

Overview

prints a HTML visualization of the call tree

Instance Method Summary collapse

Instance Method Details

#application ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 112

def application
  @application ||= @options.delete(:application) || $PROGRAM_NAME
end

#expansion ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 108

def expansion
  @expansion ||= super
end

#method_full_name(method) ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 95

def method_full_name(method)
  @method_full_name_cache[method] ||= begin
    # Use ruby-prof klass_name only for non-Classes or klasses that do not report a name
    # This prevents klass.inspect from being used which prints complex names for ActiveRecord classes
    klass_name = method.klass && method.klass.class == Class && method.klass.name || method.klass_name
    h("#{klass_name}##{method.method_name}")
  end
end

#print(output = STDOUT, options = {}) ⇒ Object

Specify print options.

options - See CallStackPrinter for based options



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 17

def print(output = STDOUT, options = {})
  @output = output
  setup_options(options)

  print_header

  @overall_threads_time = @result.threads.inject(0) do |val, thread|
    val + thread.total_time
  end

  @method_full_name_cache = {}.compare_by_identity

  @result.threads.each do |thread|
    @overall_time = thread.total_time
    thread_info = "Thread: #{thread.id}".dup
    thread_info << ", Fiber: #{thread.fiber_id}" unless thread.id == thread.fiber_id
    thread_info << format(' (%4.2f%% ~ %f)', (@overall_time / @overall_threads_time) * 100, @overall_time)

    @output.print "<div class=\"thread\">#{thread_info}</div>"
    @output.print '<ul name="thread">'
    thread.methods.each do |m|
      # $stderr.print m.dump
      next unless m.root?
      m.call_infos.each do |ci|
        next unless ci.root?
        print_stack ci, @overall_time
      end
    end
    @output.print '</ul>'
  end

  @method_full_name_cache = nil

  print_footer
end

#print_css ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 125

def print_css
  super
  @output.puts <<-CSS_OVERRIDE
<style type="text/css">
<!--
ul li { background-color: white; }
-->
</style>
CSS_OVERRIDE
end

#print_stack(call_info, parent_time) ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 53

def print_stack(call_info, parent_time)
  total_time = call_info.total_time
  percent_total = (total_time / @overall_time) * 100
  return unless percent_total > min_percent

  percent_parent = (total_time / parent_time) * 100
  if percent_total < threshold
    @output.write '<li style="display:none;">'.freeze
  else
    @output.write '<li>'.freeze
  end

  expanded = percent_total >= expansion
  kids = call_info.children

  toggle_href = if kids.empty? || kids.none? {|ci| (ci.total_time / @overall_time) * 100 >= threshold}
                  '<a href="#" class="toggle empty"></a>'.freeze
                elsif expanded
                  '<a href="#" class="toggle minus"></a>'.freeze
                else
                  '<a href="#" class="toggle plus"></a>'.freeze
                end
  @output.write toggle_href

  method = call_info.target
  @output.printf "<span>%4.2f%% (%4.2f%%) %s [%d calls, %d total]</span>\n".freeze,
                 percent_total, percent_parent,
                 method_full_name(method), call_info.called, method.called
  unless kids.empty?
    if expanded
      @output.write '<ul>'.freeze
    else
      @output.write '<ul style="display:none">'.freeze
    end
    kids.sort_by!(&:total_time).reverse_each do |callinfo|
      print_stack callinfo, total_time
    end
    @output.write '</ul>'.freeze
  end
  @output.write '</li>'.freeze
end

#print_title_bar ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 116

def print_title_bar
  @output.puts <<-"end_title_bar"
<div id="titlebar">
Call tree for application <b>#{h application} #{h arguments}</b><br/>
Generated on #{Time.current} with options #{h @options.inspect}<br/>
</div>
end_title_bar
end

#threshold ⇒ Object 



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# File 'lib/tuttle/ruby_prof/fast_call_stack_printer.rb', line 104

def threshold
  @threshold ||= super
end