Class: RubyProf::GraphHtmlPrinter

Inherits:
AbstractPrinter show all
Includes:
ERB::Util
Defined in:
lib/ruby-prof/graph_html_printer.rb

Overview

Generates graph profile reports as html. To use the grap html printer:

result = RubyProf.profile do
  [code to profile]
end

printer = RubyProf::GraphHtmlPrinter.new(result)
printer.print(STDOUT, :min_percent=>0)

The constructor takes two arguments. The first is a RubyProf::Result object generated from a profiling run. The second is the minimum %total (the methods total time divided by the overall total time) that a method must take for it to be printed out in the report. Use this parameter to eliminate methods that are not important to the overall profiling results.

Constant Summary collapse

PERCENTAGE_WIDTH = 
8
TIME_WIDTH = 
10
CALL_WIDTH = 
20

Instance Method Summary collapse

Methods inherited from AbstractPrinter

#method_name, #min_percent, #print_file, #setup_options

Constructor Details

#initialize(result) ⇒ GraphHtmlPrinter

Create a GraphPrinter. Result is a RubyProf::Result

object generated from a profiling run.



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# File 'lib/ruby-prof/graph_html_printer.rb', line 32

def initialize(result)
  super(result)
  @thread_times = Hash.new
  calculate_thread_times
end

Instance Method Details

#calculate_thread_times ⇒ Object

These methods should be private but then ERB doesn’t work. Turn off RDOC though –



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# File 'lib/ruby-prof/graph_html_printer.rb', line 61

def calculate_thread_times
  # Cache thread times since this is an expensive
  # operation with the required sorting      
  @result.threads.each do |thread_id, methods|
    top = methods.max
    
    thread_time = 0.01
    thread_time = top.total_time if top.total_time > 0

    @thread_times[thread_id] = thread_time 
  end
end

#create_link(thread_id, method) ⇒ Object

Creates a link to a method. Note that we do not create links to methods which are under the min_perecent specified by the user, since they will not be printed out.



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# File 'lib/ruby-prof/graph_html_printer.rb', line 92

def create_link(thread_id, method)
  if self.total_percent(thread_id, method) < min_percent
    # Just return name
    h method.full_name
  else
    href = '#' + method_href(thread_id, method)
    "<a href=\"#{href}\">#{h method.full_name}</a>" 
  end
end

#method_href(thread_id, method) ⇒ Object 



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# File 'lib/ruby-prof/graph_html_printer.rb', line 102

def method_href(thread_id, method)
  h(method.full_name.gsub(/[><#\.\?=:]/,"_") + "_" + thread_id.to_s)
end

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

Print a graph html report to the provided output.

output - Any IO oject, including STDOUT or a file. The default value is STDOUT.

options - Hash of print options. See #setup_options 

for more information.



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# File 'lib/ruby-prof/graph_html_printer.rb', line 46

def print(output = STDOUT, options = {})
  @output = output
  setup_options(options)
  
  filename = options[:filename]
  template = filename ? File.read(filename).untaint : (options[:template] || self.template)
  _erbout = @output
  erb = ERB.new(template, nil, nil)
  erb.filename = filename
  @output << erb.result(binding)
end

#self_percent(method) ⇒ Object 



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# File 'lib/ruby-prof/graph_html_printer.rb', line 83

def self_percent(method)
  overall_time = self.thread_time(method.thread_id)
  (method.self_time/overall_time) * 100
end

#template ⇒ Object 



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# File 'lib/ruby-prof/graph_html_printer.rb', line 106

def template
'
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
  <style media="all" type="text/css">
table {
  border-collapse: collapse;
  border: 1px solid #CCC;
  font-family: Verdana, Arial, Helvetica, sans-serif;
  font-size: 9pt;
  line-height: normal;
  width: 100%;
}

th {
  text-align: center;
  border-top: 1px solid #FB7A31;
  border-bottom: 1px solid #FB7A31;
  background: #FFC;
  padding: 0.3em;
  border-left: 1px solid silver;
}

tr.break td {
  border: 0;
  border-top: 1px solid #FB7A31;
  padding: 0;
  margin: 0;
}

tr.method td {
  font-weight: bold;
}

td {
  padding: 0.3em;
}

td:first-child {
  width: 190px;
  }

td {
  border-left: 1px solid #CCC;
  text-align: center;
} 

.method_name {
  text-align: left;
}
  </style>
  </head>
  <body>
<h1>Profile Report</h1>
<!-- Threads Table -->
<table>
  <tr>
    <th>Thread ID</th>
    <th>Total Time</th>
  </tr>
  <% for thread_id, methods in @result.threads %>
  <tr>
    <td><a href="#<%= thread_id %>"><%= thread_id %></a></td>
    <td><%= thread_time(thread_id) %></td>
  </tr>
  <% end %>
</table>

<!-- Methods Tables -->
<% for thread_id, methods in @result.threads
     total_time = thread_time(thread_id) %>
  <h2><a name="<%= thread_id %>">Thread <%= thread_id %></a></h2>

  <table>
    <tr>
      <th><%= sprintf("%#{PERCENTAGE_WIDTH}s", "%Total") %></th>
      <th><%= sprintf("%#{PERCENTAGE_WIDTH}s", "%Self") %></th>
      <th><%= sprintf("%#{TIME_WIDTH}s", "Total") %></th>
      <th><%= sprintf("%#{TIME_WIDTH}s", "Self") %></th>
      <th><%= sprintf("%#{TIME_WIDTH}s", "Wait") %></th>
      <th><%= sprintf("%#{TIME_WIDTH+2}s", "Child") %></th>
      <th><%= sprintf("%#{CALL_WIDTH}s", "Calls") %></th>
      <th class="method_name">Name</th>
      <th>Line</th>
    </tr>

    <% min_time = @options[:min_time] || (@options[:nonzero] ? 0.005 : nil)
       methods.sort.reverse_each do |method|
        total_percentage = (method.total_time/total_time) * 100
        next if total_percentage < min_percent
        next if min_time && method.total_time < min_time
        self_percentage = (method.self_time/total_time) * 100 %>
      
        <!-- Parents -->
        <% for caller in method.aggregate_parents.sort_by(&:total_time)
             next unless caller.parent
             next if min_time && caller.total_time < min_time  %>
          <tr>
            <td>&nbsp;</td>
            <td>&nbsp;</td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", caller.total_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", caller.self_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", caller.wait_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", caller.children_time) %></td>
            <% called = "#{caller.called}/#{method.called}" %>
            <td><%= sprintf("%#{CALL_WIDTH}s", called) %></td>
            <td class="method_name"><%= create_link(thread_id, caller.parent.target) %></td>
            <td><a href="file://<%=h srcfile=File.expand_path(caller.parent.target.source_file) %>#line=<%= linenum=caller.line %>" title="<%=h srcfile %>:<%= linenum %>"><%= caller.line %></a></td>
          </tr>
        <% end %>

        <tr class="method">
          <td><%= sprintf("%#{PERCENTAGE_WIDTH-1}.2f\%", total_percentage) %></td>
          <td><%= sprintf("%#{PERCENTAGE_WIDTH-1}.2f\%", self_percentage) %></td>
          <td><%= sprintf("%#{TIME_WIDTH}.2f", method.total_time) %></td>
          <td><%= sprintf("%#{TIME_WIDTH}.2f", method.self_time) %></td>
          <td><%= sprintf("%#{TIME_WIDTH}.2f", method.wait_time) %></td>
          <td><%= sprintf("%#{TIME_WIDTH}.2f", method.children_time) %></td>
          <td><%= sprintf("%#{CALL_WIDTH}i", method.called) %></td>
          <td class="method_name"><a name="<%= method_href(thread_id, method) %>"><%= h method.full_name %></a></td>
          <td><a href="file://<%=h srcfile=File.expand_path(method.source_file) %>#line=<%= linenum=method.line %>" title="<%=h srcfile %>:<%= linenum %>"><%= method.line %></a></td>
        </tr>

        <!-- Children -->
        <% for callee in method.aggregate_children.sort_by(&:total_time).reverse %>
        <%   next if min_time && callee.total_time < min_time  %>
          <tr>
            <td>&nbsp;</td>
            <td>&nbsp;</td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", callee.total_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", callee.self_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", callee.wait_time) %></td>
            <td><%= sprintf("%#{TIME_WIDTH}.2f", callee.children_time) %></td>
            <% called = "#{callee.called}/#{callee.target.called}" %>
            <td><%= sprintf("%#{CALL_WIDTH}s", called) %></td>
            <td class="method_name"><%= create_link(thread_id, callee.target) %></td>
            <td><a href="file://<%=h srcfile=File.expand_path(method.source_file) %>#line=<%= linenum=callee.line %>" title="<%=h srcfile %>:<%= linenum %>"><%= callee.line %></a></td>
          </tr>
        <% end %>
        <!-- Create divider row -->
        <tr class="break"><td colspan="9"></td></tr>
    <% end %>
  </table>
<% end %>
  </body>
</html>'
end

#thread_time(thread_id) ⇒ Object 



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# File 'lib/ruby-prof/graph_html_printer.rb', line 74

def thread_time(thread_id)
  @thread_times[thread_id]
end

#total_percent(thread_id, method) ⇒ Object 



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# File 'lib/ruby-prof/graph_html_printer.rb', line 78

def total_percent(thread_id, method)
  overall_time = self.thread_time(thread_id)
  (method.total_time/overall_time) * 100
end