Class RubyProf::GraphPrinter
In: lib/ruby-prof/graph_printer.rb
Parent: AbstractPrinter

Generates graph profile reports as text. To use the graph printer: 

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

  printer = RubyProf::GraphPrinter.new(result, 5)
  printer.print(STDOUT, 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.

Methods

calculate_thread_times   new   print  

Constants

PERCENTAGE_WIDTH = 8
TIME_WIDTH = 10
CALL_WIDTH = 17

Public Class methods

new(result)

Create a GraphPrinter. Result is a RubyProf::Result object generated from a profiling run.

[Source]

    # File lib/ruby-prof/graph_printer.rb, line 29
29:     def initialize(result)
30:       super(result)
31:       @thread_times = Hash.new
32:       calculate_thread_times
33:     end

Public Instance methods

calculate_thread_times()

[Source]

    # File lib/ruby-prof/graph_printer.rb, line 35
35:     def calculate_thread_times
36:       # Cache thread times since this is an expensive
37:       # operation with the required sorting      
38:       @result.threads.each do |thread_id, methods|
39:         top = methods.sort.last
40:         
41:         thread_time = 0.01
42:         thread_time = top.total_time if top.total_time > 0
43: 
44:         @thread_times[thread_id] = thread_time 
45:       end
46:     end
print(output = STDOUT, options = {})

Print a graph 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.

[Source]

    # File lib/ruby-prof/graph_printer.rb, line 56
56:     def print(output = STDOUT, options = {})
57:       @output = output
58:       setup_options(options)
59:       print_threads
60:     end

[Validate]