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benchmark.rb

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#--
# benchmark.rb - a performance benchmarking library
#
# $Id: benchmark.rb 32269 2011-06-28 06:09:46Z naruse $
#
# Created by Gotoken ([email protected]).
#
# Documentation by Gotoken (original RD), Lyle Johnson (RDoc conversion), and
# Gavin Sinclair (editing).
#++

module Benchmark

  BENCHMARK_VERSION = "2002-04-25" #:nodoc"

  # Invokes the block with a <tt>Benchmark::Report</tt> object, which
  # may be used to collect and report on the results of individual
  # benchmark tests. Reserves <i>label_width</i> leading spaces for
  # labels on each line. Prints _caption_ at the top of the
  # report, and uses _format_ to format each line.
  # Returns an array of Benchmark::Tms objects.
  #
  # If the block returns an array of
  # <tt>Benchmark::Tms</tt> objects, these will be used to format
  # additional lines of output. If _label_ parameters are
  # given, these are used to label these extra lines.
  #
  # _Note_: Other methods provide a simpler interface to this one, and are
  # suitable for nearly all benchmarking requirements.  See the examples in
  # Benchmark, and the #bm and #bmbm methods.
  #
  # Example:
  #
  #     require 'benchmark'
  #     include Benchmark          # we need the CAPTION and FORMAT constants
  #
  #     n = 50000
  #     Benchmark.benchmark(CAPTION, 7, FORMAT, ">total:", ">avg:") do |x|
  #       tf = x.report("for:")   { for i in 1..n; a = "1"; end }
  #       tt = x.report("times:") { n.times do   ; a = "1"; end }
  #       tu = x.report("upto:")  { 1.upto(n) do ; a = "1"; end }
  #       [tf+tt+tu, (tf+tt+tu)/3]
  #     end
  #
  # <i>Generates:</i>
  #
  #                     user     system      total        real
  #        for:     1.016667   0.016667   1.033333 (  0.485749)
  #        times:   1.450000   0.016667   1.466667 (  0.681367)
  #        upto:    1.533333   0.000000   1.533333 (  0.722166)
  #        >total:  4.000000   0.033333   4.033333 (  1.889282)
  #        >avg:    1.333333   0.011111   1.344444 (  0.629761)
  #

  def benchmark(caption = "", label_width = nil, format = nil, *labels) # :yield: report
    sync = STDOUT.sync
    STDOUT.sync = true
    label_width ||= 0
    label_width += 1
    format ||= FORMAT
    print ' '*label_width + caption
    report = Report.new(label_width, format)
    results = yield(report)
    Array === results and results.grep(Tms).each {|t|
      print((labels.shift || t.label || "").ljust(label_width), t.format(format))
    }
    report.list
  ensure
    STDOUT.sync = sync unless sync.nil?
  end


  # A simple interface to the #benchmark method, #bm is generates sequential reports
  # with labels.  The parameters have the same meaning as for #benchmark.
  #
  #     require 'benchmark'
  #
  #     n = 50000
  #     Benchmark.bm(7) do |x|
  #       x.report("for:")   { for i in 1..n; a = "1"; end }
  #       x.report("times:") { n.times do   ; a = "1"; end }
  #       x.report("upto:")  { 1.upto(n) do ; a = "1"; end }
  #     end
  #
  # <i>Generates:</i>
  #
  #                     user     system      total        real
  #        for:     1.050000   0.000000   1.050000 (  0.503462)
  #        times:   1.533333   0.016667   1.550000 (  0.735473)
  #        upto:    1.500000   0.016667   1.516667 (  0.711239)
  #

  def bm(label_width = 0, *labels, &blk) # :yield: report
    benchmark(CAPTION, label_width, FORMAT, *labels, &blk)
  end


  # Sometimes benchmark results are skewed because code executed
  # earlier encounters different garbage collection overheads than
  # that run later. #bmbm attempts to minimize this effect by running
  # the tests twice, the first time as a rehearsal in order to get the
  # runtime environment stable, the second time for
  # real. <tt>GC.start</tt> is executed before the start of each of
  # the real timings; the cost of this is not included in the
  # timings. In reality, though, there's only so much that #bmbm can
  # do, and the results are not guaranteed to be isolated from garbage
  # collection and other effects.
  #
  # Because #bmbm takes two passes through the tests, it can
  # calculate the required label width.
  #
  #       require 'benchmark'
  #
  #       array = (1..1000000).map { rand }
  #
  #       Benchmark.bmbm do |x|
  #         x.report("sort!") { array.dup.sort! }
  #         x.report("sort")  { array.dup.sort  }
  #       end
  #
  # <i>Generates:</i>
  #
  #        Rehearsal -----------------------------------------
  #        sort!  11.928000   0.010000  11.938000 ( 12.756000)
  #        sort   13.048000   0.020000  13.068000 ( 13.857000)
  #        ------------------------------- total: 25.006000sec
  #
  #                    user     system      total        real
  #        sort!  12.959000   0.010000  12.969000 ( 13.793000)
  #        sort   12.007000   0.000000  12.007000 ( 12.791000)
  #
  # #bmbm yields a Benchmark::Job object and returns an array of
  # Benchmark::Tms objects.
  #
  def bmbm(width = 0, &blk) # :yield: job
    job = Job.new(width)
    yield(job)
    width = job.width + 1
    sync = STDOUT.sync
    STDOUT.sync = true

    # rehearsal
    puts 'Rehearsal '.ljust(width+CAPTION.length,'-')
    ets = job.list.inject(Tms.new) { |sum,(label,item)|
      print label.ljust(width)
      res = Benchmark.measure(&item)
      print res.format
      sum + res
    }.format("total: %tsec")
    print " #{ets}\n\n".rjust(width+CAPTION.length+2,'-')

    # take
    print ' '*width + CAPTION
    job.list.map { |label,item|
      GC.start
      print label.ljust(width)
      Benchmark.measure(label, &item).tap { |res| print res }
    }
  ensure
    STDOUT.sync = sync unless sync.nil?
  end

  #
  # Returns the time used to execute the given block as a
  # Benchmark::Tms object.
  #
  def measure(label = "") # :yield:
    t0, r0 = Process.times, Time.now
    yield
    t1, r1 = Process.times, Time.now
    Benchmark::Tms.new(t1.utime  - t0.utime,
                       t1.stime  - t0.stime,
                       t1.cutime - t0.cutime,
                       t1.cstime - t0.cstime,
                       r1.to_f - r0.to_f,
                       label)
  end

  #
  # Returns the elapsed real time used to execute the given block.
  #
  def realtime # :yield:
    r0 = Time.now
    yield
    Time.now - r0
  end

  module_function :benchmark, :measure, :realtime, :bm, :bmbm

  #
  # A Job is a sequence of labelled blocks to be processed by the
  # Benchmark.bmbm method.  It is of little direct interest to the user.
  #
  class Job # :nodoc:
    #
    # Returns an initialized Job instance.
    # Usually, one doesn't call this method directly, as new
    # Job objects are created by the #bmbm method.
    # _width_ is a initial value for the label offset used in formatting;
    # the #bmbm method passes its _width_ argument to this constructor.
    #
    def initialize(width)
      @width = width
      @list = []
    end

    #
    # Registers the given label and block pair in the job list.
    #
    def item(label = "", &blk) # :yield:
      raise ArgumentError, "no block" unless block_given?
      label = label.to_s
      w = label.length
      @width = w if @width < w
      @list << [label, blk]
      self
    end

    alias report item

    # An array of 2-element arrays, consisting of label and block pairs.
    attr_reader :list

    # Length of the widest label in the #list.
    attr_reader :width
  end

  #
  # This class is used by the Benchmark.benchmark and Benchmark.bm methods.
  # It is of little direct interest to the user.
  #
  class Report # :nodoc:
    #
    # Returns an initialized Report instance.
    # Usually, one doesn't call this method directly, as new
    # Report objects are created by the #benchmark and #bm methods.
    # _width_ and _format_ are the label offset and
    # format string used by Tms#format.
    #
    def initialize(width = 0, format = nil)
      @width, @format, @list = width, format, []
    end

    #
    # Prints the _label_ and measured time for the block,
    # formatted by _format_. See Tms#format for the
    # formatting rules.
    #
    def item(label = "", *format, &blk) # :yield:
      print label.to_s.ljust(@width)
      @list << res = Benchmark.measure(label, &blk)
      print res.format(@format, *format)
      res
    end

    alias report item

    # An array of Benchmark::Tms objects representing each item.
    attr_reader :list
  end



  #
  # A data object, representing the times associated with a benchmark
  # measurement.
  #
  class Tms

    # Default caption, see also Benchmark::CAPTION
    CAPTION = "      user     system      total        real\n"

    # Default format string, see also Benchmark::FORMAT
    FORMAT = "%10.6u %10.6y %10.6t %10.6r\n"

    # User CPU time
    attr_reader :utime

    # System CPU time
    attr_reader :stime

    # User CPU time of children
    attr_reader :cutime

    # System CPU time of children
    attr_reader :cstime

    # Elapsed real time
    attr_reader :real

    # Total time, that is _utime_ + _stime_ + _cutime_ + _cstime_
    attr_reader :total

    # Label
    attr_reader :label

    #
    # Returns an initialized Tms object which has
    # _utime_ as the user CPU time, _stime_ as the system CPU time,
    # _cutime_ as the children's user CPU time, _cstime_ as the children's
    # system CPU time, _real_ as the elapsed real time and _label_ as the label.
    #
    def initialize(utime = 0.0, stime = 0.0, cutime = 0.0, cstime = 0.0, real = 0.0, label = nil)
      @utime, @stime, @cutime, @cstime, @real, @label = utime, stime, cutime, cstime, real, label.to_s
      @total = @utime + @stime + @cutime + @cstime
    end

    #
    # Returns a new Tms object whose times are the sum of the times for this
    # Tms object, plus the time required to execute the code block (_blk_).
    #
    def add(&blk) # :yield:
      self + Benchmark.measure(&blk)
    end

    #
    # An in-place version of #add.
    #
    def add!(&blk)
      t = Benchmark.measure(&blk)
      @utime  = utime + t.utime
      @stime  = stime + t.stime
      @cutime = cutime + t.cutime
      @cstime = cstime + t.cstime
      @real   = real + t.real
      self
    end

    #
    # Returns a new Tms object obtained by memberwise summation
    # of the individual times for this Tms object with those of the other
    # Tms object.
    # This method and #/() are useful for taking statistics.
    #
    def +(other); memberwise(:+, other) end

    #
    # Returns a new Tms object obtained by memberwise subtraction
    # of the individual times for the other Tms object from those of this
    # Tms object.
    #
    def -(other); memberwise(:-, other) end

    #
    # Returns a new Tms object obtained by memberwise multiplication
    # of the individual times for this Tms object by _x_.
    #
    def *(x); memberwise(:*, x) end

    #
    # Returns a new Tms object obtained by memberwise division
    # of the individual times for this Tms object by _x_.
    # This method and #+() are useful for taking statistics.
    #
    def /(x); memberwise(:/, x) end

    #
    # Returns the contents of this Tms object as
    # a formatted string, according to a format string
    # like that passed to Kernel.format. In addition, #format
    # accepts the following extensions:
    #
    # <tt>%u</tt>::     Replaced by the user CPU time, as reported by Tms#utime.
    # <tt>%y</tt>::     Replaced by the system CPU time, as reported by #stime (Mnemonic: y of "s*y*stem")
    # <tt>%U</tt>::     Replaced by the children's user CPU time, as reported by Tms#cutime
    # <tt>%Y</tt>::     Replaced by the children's system CPU time, as reported by Tms#cstime
    # <tt>%t</tt>::     Replaced by the total CPU time, as reported by Tms#total
    # <tt>%r</tt>::     Replaced by the elapsed real time, as reported by Tms#real
    # <tt>%n</tt>::     Replaced by the label string, as reported by Tms#label (Mnemonic: n of "*n*ame")
    #
    # If _format_ is not given, FORMAT is used as default value, detailing the
    # user, system and real elapsed time.
    #
    def format(format = nil, *args)
      str = (format || FORMAT).dup
      str.gsub!(/(%[-+\.\d]*)n/) { "#{$1}s" % label }
      str.gsub!(/(%[-+\.\d]*)u/) { "#{$1}f" % utime }
      str.gsub!(/(%[-+\.\d]*)y/) { "#{$1}f" % stime }
      str.gsub!(/(%[-+\.\d]*)U/) { "#{$1}f" % cutime }
      str.gsub!(/(%[-+\.\d]*)Y/) { "#{$1}f" % cstime }
      str.gsub!(/(%[-+\.\d]*)t/) { "#{$1}f" % total }
      str.gsub!(/(%[-+\.\d]*)r/) { "(#{$1}f)" % real }
      format ? str % args : str
    end

    #
    # Same as #format.
    #
    def to_s
      format
    end

    #
    # Returns a new 6-element array, consisting of the
    # label, user CPU time, system CPU time, children's
    # user CPU time, children's system CPU time and elapsed
    # real time.
    #
    def to_a
      [@label, @utime, @stime, @cutime, @cstime, @real]
    end

    protected
    
    #
    # Returns a new Tms object obtained by memberwise operation +op+
    # of the individual times for this Tms object with those of the other
    # Tms object.
    #
    # +op+ can be a mathematical operation such as <tt>+</tt>, <tt>-</tt>,
    # <tt>*</tt>, <tt>/</tt>
    #
    def memberwise(op, x)
      case x
      when Benchmark::Tms
        Benchmark::Tms.new(utime.__send__(op, x.utime),
                           stime.__send__(op, x.stime),
                           cutime.__send__(op, x.cutime),
                           cstime.__send__(op, x.cstime),
                           real.__send__(op, x.real)
                           )
      else
        Benchmark::Tms.new(utime.__send__(op, x),
                           stime.__send__(op, x),
                           cutime.__send__(op, x),
                           cstime.__send__(op, x),
                           real.__send__(op, x)
                           )
      end
    end
  end

  # The default caption string (heading above the output times).
  CAPTION = Benchmark::Tms::CAPTION

  # The default format string used to display times.  See also Benchmark::Tms#format.
  FORMAT = Benchmark::Tms::FORMAT
end

if __FILE__ == $0
  include Benchmark

  n = ARGV[0].to_i.nonzero? || 50000
  puts %Q([#{n} times iterations of `a = "1"'])
  benchmark("       " + CAPTION, 7, FORMAT) do |x|
    x.report("for:")   {for _ in 1..n; _ = "1"; end} # Benchmark.measure
    x.report("times:") {n.times do   ; _ = "1"; end}
    x.report("upto:")  {1.upto(n) do ; _ = "1"; end}
  end

  benchmark do
    [
      measure{for _ in 1..n; _ = "1"; end},  # Benchmark.measure
      measure{n.times do   ; _ = "1"; end},
      measure{1.upto(n) do ; _ = "1"; end}
    ]
  end
end
https://snipt.net/embed/0f6430d26a1894da4ade39b4aae66362/
/raw/0f6430d26a1894da4ade39b4aae66362/
0f6430d26a1894da4ade39b4aae66362
rb
Ruby
459
2019-05-24T17:10:46
True
False
False
/api/public/snipt/38737/
benchmarkrb
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Gotoken ([email protected]).</span> </span><span id="L-7"><a name="L-7"></a><span class="c1">#</span> </span><span id="L-8"><a name="L-8"></a><span class="c1"># Documentation by Gotoken (original RD), Lyle Johnson (RDoc conversion), and</span> </span><span id="L-9"><a name="L-9"></a><span class="c1"># Gavin Sinclair (editing).</span> </span><span id="L-10"><a name="L-10"></a><span class="c1">#++</span> </span><span id="L-11"><a name="L-11"></a> </span><span id="L-12"><a name="L-12"></a><span class="k">module</span> <span class="nn">Benchmark</span> </span><span id="L-13"><a name="L-13"></a> </span><span id="L-14"><a name="L-14"></a> <span class="no">BENCHMARK_VERSION</span> <span class="o">=</span> <span class="s2">&quot;2002-04-25&quot;</span> <span class="c1">#:nodoc&quot;</span> </span><span id="L-15"><a name="L-15"></a> </span><span id="L-16"><a name="L-16"></a> <span class="c1"># Invokes the block with a &lt;tt&gt;Benchmark::Report&lt;/tt&gt; object, which</span> </span><span id="L-17"><a name="L-17"></a> <span class="c1"># may be used to collect and report on the results of individual</span> </span><span id="L-18"><a name="L-18"></a> <span class="c1"># benchmark tests. Reserves &lt;i&gt;label_width&lt;/i&gt; leading spaces for</span> </span><span id="L-19"><a name="L-19"></a> <span class="c1"># labels on each line. Prints _caption_ at the top of the</span> </span><span id="L-20"><a name="L-20"></a> <span class="c1"># report, and uses _format_ to format each line.</span> </span><span id="L-21"><a name="L-21"></a> <span class="c1"># Returns an array of Benchmark::Tms objects.</span> </span><span id="L-22"><a name="L-22"></a> <span class="c1">#</span> </span><span id="L-23"><a name="L-23"></a> <span class="c1"># If the block returns an array of</span> </span><span id="L-24"><a name="L-24"></a> <span class="c1"># &lt;tt&gt;Benchmark::Tms&lt;/tt&gt; objects, these will be used to format</span> </span><span id="L-25"><a name="L-25"></a> <span class="c1"># additional lines of output. If _label_ parameters are</span> </span><span id="L-26"><a name="L-26"></a> <span class="c1"># given, these are used to label these extra lines.</span> </span><span id="L-27"><a name="L-27"></a> <span class="c1">#</span> </span><span id="L-28"><a name="L-28"></a> <span class="c1"># _Note_: Other methods provide a simpler interface to this one, and are</span> </span><span id="L-29"><a name="L-29"></a> <span class="c1"># suitable for nearly all benchmarking requirements. See the examples in</span> </span><span id="L-30"><a name="L-30"></a> <span class="c1"># Benchmark, and the #bm and #bmbm methods.</span> </span><span id="L-31"><a name="L-31"></a> <span class="c1">#</span> </span><span id="L-32"><a name="L-32"></a> <span class="c1"># Example:</span> </span><span id="L-33"><a name="L-33"></a> <span class="c1">#</span> </span><span id="L-34"><a name="L-34"></a> <span class="c1"># require &#39;benchmark&#39;</span> </span><span id="L-35"><a name="L-35"></a> <span class="c1"># include Benchmark # we need the CAPTION and FORMAT constants</span> </span><span id="L-36"><a name="L-36"></a> <span class="c1">#</span> </span><span id="L-37"><a name="L-37"></a> <span class="c1"># n = 50000</span> </span><span id="L-38"><a name="L-38"></a> <span class="c1"># Benchmark.benchmark(CAPTION, 7, FORMAT, &quot;&gt;total:&quot;, &quot;&gt;avg:&quot;) do |x|</span> </span><span id="L-39"><a name="L-39"></a> <span class="c1"># tf = x.report(&quot;for:&quot;) { for i in 1..n; a = &quot;1&quot;; end }</span> </span><span id="L-40"><a name="L-40"></a> <span class="c1"># tt = x.report(&quot;times:&quot;) { n.times do ; a = &quot;1&quot;; end }</span> </span><span id="L-41"><a name="L-41"></a> <span class="c1"># tu = x.report(&quot;upto:&quot;) { 1.upto(n) do ; a = &quot;1&quot;; end }</span> </span><span id="L-42"><a name="L-42"></a> <span class="c1"># [tf+tt+tu, (tf+tt+tu)/3]</span> </span><span id="L-43"><a name="L-43"></a> <span class="c1"># end</span> </span><span id="L-44"><a name="L-44"></a> <span class="c1">#</span> </span><span id="L-45"><a name="L-45"></a> <span class="c1"># &lt;i&gt;Generates:&lt;/i&gt;</span> </span><span id="L-46"><a name="L-46"></a> <span class="c1">#</span> </span><span id="L-47"><a name="L-47"></a> <span class="c1"># user system total real</span> </span><span id="L-48"><a name="L-48"></a> <span class="c1"># for: 1.016667 0.016667 1.033333 ( 0.485749)</span> </span><span id="L-49"><a name="L-49"></a> <span class="c1"># times: 1.450000 0.016667 1.466667 ( 0.681367)</span> </span><span id="L-50"><a name="L-50"></a> <span class="c1"># upto: 1.533333 0.000000 1.533333 ( 0.722166)</span> </span><span id="L-51"><a name="L-51"></a> <span class="c1"># &gt;total: 4.000000 0.033333 4.033333 ( 1.889282)</span> </span><span id="L-52"><a name="L-52"></a> <span class="c1"># &gt;avg: 1.333333 0.011111 1.344444 ( 0.629761)</span> </span><span id="L-53"><a name="L-53"></a> <span class="c1">#</span> </span><span id="L-54"><a name="L-54"></a> </span><span id="L-55"><a name="L-55"></a> <span class="k">def</span> <span class="nf">benchmark</span><span class="p">(</span><span class="n">caption</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="n">label_width</span> <span class="o">=</span> <span class="kp">nil</span><span class="p">,</span> <span class="nb">format</span> <span class="o">=</span> <span class="kp">nil</span><span class="p">,</span> <span class="o">*</span><span class="n">labels</span><span class="p">)</span> <span class="c1"># :yield: report</span> </span><span id="L-56"><a name="L-56"></a> <span class="n">sync</span> <span class="o">=</span> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> </span><span id="L-57"><a name="L-57"></a> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> <span class="o">=</span> <span class="kp">true</span> </span><span id="L-58"><a name="L-58"></a> <span class="n">label_width</span> <span class="o">||=</span> <span class="mi">0</span> </span><span id="L-59"><a name="L-59"></a> <span class="n">label_width</span> <span class="o">+=</span> <span class="mi">1</span> </span><span id="L-60"><a name="L-60"></a> <span class="nb">format</span> <span class="o">||=</span> <span class="no">FORMAT</span> </span><span id="L-61"><a name="L-61"></a> <span class="nb">print</span> <span class="s1">&#39; &#39;</span><span class="o">*</span><span class="n">label_width</span> <span class="o">+</span> <span class="n">caption</span> </span><span id="L-62"><a name="L-62"></a> <span class="n">report</span> <span class="o">=</span> <span class="no">Report</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">label_width</span><span class="p">,</span> <span class="nb">format</span><span class="p">)</span> </span><span id="L-63"><a name="L-63"></a> <span class="n">results</span> <span class="o">=</span> <span class="k">yield</span><span class="p">(</span><span class="n">report</span><span class="p">)</span> </span><span id="L-64"><a name="L-64"></a> <span class="nb">Array</span> <span class="o">===</span> <span class="n">results</span> <span class="ow">and</span> <span class="n">results</span><span class="o">.</span><span class="n">grep</span><span class="p">(</span><span class="no">Tms</span><span class="p">)</span><span class="o">.</span><span class="n">each</span> <span class="p">{</span><span class="o">|</span><span class="n">t</span><span class="o">|</span> </span><span id="L-65"><a name="L-65"></a> <span class="nb">print</span><span class="p">((</span><span class="n">labels</span><span class="o">.</span><span class="n">shift</span> <span class="o">||</span> <span class="n">t</span><span class="o">.</span><span class="n">label</span> <span class="o">||</span> <span class="s2">&quot;&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">ljust</span><span class="p">(</span><span class="n">label_width</span><span class="p">),</span> <span class="n">t</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">format</span><span class="p">))</span> </span><span id="L-66"><a name="L-66"></a> <span class="p">}</span> </span><span id="L-67"><a name="L-67"></a> <span class="n">report</span><span class="o">.</span><span class="n">list</span> </span><span id="L-68"><a name="L-68"></a> <span class="k">ensure</span> </span><span id="L-69"><a name="L-69"></a> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> <span class="o">=</span> <span class="n">sync</span> <span class="k">unless</span> <span class="n">sync</span><span class="o">.</span><span class="n">nil?</span> </span><span id="L-70"><a name="L-70"></a> <span class="k">end</span> </span><span id="L-71"><a name="L-71"></a> </span><span id="L-72"><a name="L-72"></a> </span><span id="L-73"><a name="L-73"></a> <span class="c1"># A simple interface to the #benchmark method, #bm is generates sequential reports</span> </span><span id="L-74"><a name="L-74"></a> <span class="c1"># with labels. The parameters have the same meaning as for #benchmark.</span> </span><span id="L-75"><a name="L-75"></a> <span class="c1">#</span> </span><span id="L-76"><a name="L-76"></a> <span class="c1"># require &#39;benchmark&#39;</span> </span><span id="L-77"><a name="L-77"></a> <span class="c1">#</span> </span><span id="L-78"><a name="L-78"></a> <span class="c1"># n = 50000</span> </span><span id="L-79"><a name="L-79"></a> <span class="c1"># Benchmark.bm(7) do |x|</span> </span><span id="L-80"><a name="L-80"></a> <span class="c1"># x.report(&quot;for:&quot;) { for i in 1..n; a = &quot;1&quot;; end }</span> </span><span id="L-81"><a name="L-81"></a> <span class="c1"># x.report(&quot;times:&quot;) { n.times do ; a = &quot;1&quot;; end }</span> </span><span id="L-82"><a name="L-82"></a> <span class="c1"># x.report(&quot;upto:&quot;) { 1.upto(n) do ; a = &quot;1&quot;; end }</span> </span><span id="L-83"><a name="L-83"></a> <span class="c1"># end</span> </span><span id="L-84"><a name="L-84"></a> <span class="c1">#</span> </span><span id="L-85"><a name="L-85"></a> <span class="c1"># &lt;i&gt;Generates:&lt;/i&gt;</span> </span><span id="L-86"><a name="L-86"></a> <span class="c1">#</span> </span><span id="L-87"><a name="L-87"></a> <span class="c1"># user system total real</span> </span><span id="L-88"><a name="L-88"></a> <span class="c1"># for: 1.050000 0.000000 1.050000 ( 0.503462)</span> </span><span id="L-89"><a name="L-89"></a> <span class="c1"># times: 1.533333 0.016667 1.550000 ( 0.735473)</span> </span><span id="L-90"><a name="L-90"></a> <span class="c1"># upto: 1.500000 0.016667 1.516667 ( 0.711239)</span> </span><span id="L-91"><a name="L-91"></a> <span class="c1">#</span> </span><span id="L-92"><a name="L-92"></a> </span><span id="L-93"><a name="L-93"></a> <span class="k">def</span> <span class="nf">bm</span><span class="p">(</span><span class="n">label_width</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="o">*</span><span class="n">labels</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> <span class="c1"># :yield: report</span> </span><span id="L-94"><a name="L-94"></a> <span class="n">benchmark</span><span class="p">(</span><span class="no">CAPTION</span><span class="p">,</span> <span class="n">label_width</span><span class="p">,</span> <span class="no">FORMAT</span><span class="p">,</span> <span class="o">*</span><span class="n">labels</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> </span><span id="L-95"><a name="L-95"></a> <span class="k">end</span> </span><span id="L-96"><a name="L-96"></a> </span><span id="L-97"><a name="L-97"></a> </span><span id="L-98"><a name="L-98"></a> <span class="c1"># Sometimes benchmark results are skewed because code executed</span> </span><span id="L-99"><a name="L-99"></a> <span class="c1"># earlier encounters different garbage collection overheads than</span> </span><span id="L-100"><a name="L-100"></a> <span class="c1"># that run later. #bmbm attempts to minimize this effect by running</span> </span><span id="L-101"><a name="L-101"></a> <span class="c1"># the tests twice, the first time as a rehearsal in order to get the</span> </span><span id="L-102"><a name="L-102"></a> <span class="c1"># runtime environment stable, the second time for</span> </span><span id="L-103"><a name="L-103"></a> <span class="c1"># real. &lt;tt&gt;GC.start&lt;/tt&gt; is executed before the start of each of</span> </span><span id="L-104"><a name="L-104"></a> <span class="c1"># the real timings; the cost of this is not included in the</span> </span><span id="L-105"><a name="L-105"></a> <span class="c1"># timings. In reality, though, there&#39;s only so much that #bmbm can</span> </span><span id="L-106"><a name="L-106"></a> <span class="c1"># do, and the results are not guaranteed to be isolated from garbage</span> </span><span id="L-107"><a name="L-107"></a> <span class="c1"># collection and other effects.</span> </span><span id="L-108"><a name="L-108"></a> <span class="c1">#</span> </span><span id="L-109"><a name="L-109"></a> <span class="c1"># Because #bmbm takes two passes through the tests, it can</span> </span><span id="L-110"><a name="L-110"></a> <span class="c1"># calculate the required label width.</span> </span><span id="L-111"><a name="L-111"></a> <span class="c1">#</span> </span><span id="L-112"><a name="L-112"></a> <span class="c1"># require &#39;benchmark&#39;</span> </span><span id="L-113"><a name="L-113"></a> <span class="c1">#</span> </span><span id="L-114"><a name="L-114"></a> <span class="c1"># array = (1..1000000).map { rand }</span> </span><span id="L-115"><a name="L-115"></a> <span class="c1">#</span> </span><span id="L-116"><a name="L-116"></a> <span class="c1"># Benchmark.bmbm do |x|</span> </span><span id="L-117"><a name="L-117"></a> <span class="c1"># x.report(&quot;sort!&quot;) { array.dup.sort! }</span> </span><span id="L-118"><a name="L-118"></a> <span class="c1"># x.report(&quot;sort&quot;) { array.dup.sort }</span> </span><span id="L-119"><a name="L-119"></a> <span class="c1"># end</span> </span><span id="L-120"><a name="L-120"></a> <span class="c1">#</span> </span><span id="L-121"><a name="L-121"></a> <span class="c1"># &lt;i&gt;Generates:&lt;/i&gt;</span> </span><span id="L-122"><a name="L-122"></a> <span class="c1">#</span> </span><span id="L-123"><a name="L-123"></a> <span class="c1"># Rehearsal -----------------------------------------</span> </span><span id="L-124"><a name="L-124"></a> <span class="c1"># sort! 11.928000 0.010000 11.938000 ( 12.756000)</span> </span><span id="L-125"><a name="L-125"></a> <span class="c1"># sort 13.048000 0.020000 13.068000 ( 13.857000)</span> </span><span id="L-126"><a name="L-126"></a> <span class="c1"># ------------------------------- total: 25.006000sec</span> </span><span id="L-127"><a name="L-127"></a> <span class="c1">#</span> </span><span id="L-128"><a name="L-128"></a> <span class="c1"># user system total real</span> </span><span id="L-129"><a name="L-129"></a> <span class="c1"># sort! 12.959000 0.010000 12.969000 ( 13.793000)</span> </span><span id="L-130"><a name="L-130"></a> <span class="c1"># sort 12.007000 0.000000 12.007000 ( 12.791000)</span> </span><span id="L-131"><a name="L-131"></a> <span class="c1">#</span> </span><span id="L-132"><a name="L-132"></a> <span class="c1"># #bmbm yields a Benchmark::Job object and returns an array of</span> </span><span id="L-133"><a name="L-133"></a> <span class="c1"># Benchmark::Tms objects.</span> </span><span id="L-134"><a name="L-134"></a> <span class="c1">#</span> </span><span id="L-135"><a name="L-135"></a> <span class="k">def</span> <span class="nf">bmbm</span><span class="p">(</span><span class="n">width</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> <span class="c1"># :yield: job</span> </span><span id="L-136"><a name="L-136"></a> <span class="n">job</span> <span class="o">=</span> <span class="no">Job</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">width</span><span class="p">)</span> </span><span id="L-137"><a name="L-137"></a> <span class="k">yield</span><span class="p">(</span><span class="n">job</span><span class="p">)</span> </span><span id="L-138"><a name="L-138"></a> <span class="n">width</span> <span class="o">=</span> <span class="n">job</span><span class="o">.</span><span class="n">width</span> <span class="o">+</span> <span class="mi">1</span> </span><span id="L-139"><a name="L-139"></a> <span class="n">sync</span> <span class="o">=</span> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> </span><span id="L-140"><a name="L-140"></a> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> <span class="o">=</span> <span class="kp">true</span> </span><span id="L-141"><a name="L-141"></a> </span><span id="L-142"><a name="L-142"></a> <span class="c1"># rehearsal</span> </span><span id="L-143"><a name="L-143"></a> <span class="nb">puts</span> <span class="s1">&#39;Rehearsal &#39;</span><span class="o">.</span><span class="n">ljust</span><span class="p">(</span><span class="n">width</span><span class="o">+</span><span class="no">CAPTION</span><span class="o">.</span><span class="n">length</span><span class="p">,</span><span class="s1">&#39;-&#39;</span><span class="p">)</span> </span><span id="L-144"><a name="L-144"></a> <span class="n">ets</span> <span class="o">=</span> <span class="n">job</span><span class="o">.</span><span class="n">list</span><span class="o">.</span><span class="n">inject</span><span class="p">(</span><span class="no">Tms</span><span class="o">.</span><span class="n">new</span><span class="p">)</span> <span class="p">{</span> <span class="o">|</span><span class="n">sum</span><span class="p">,(</span><span class="n">label</span><span class="p">,</span><span class="n">item</span><span class="p">)</span><span class="o">|</span> </span><span id="L-145"><a name="L-145"></a> <span class="nb">print</span> <span class="n">label</span><span class="o">.</span><span class="n">ljust</span><span class="p">(</span><span class="n">width</span><span class="p">)</span> </span><span id="L-146"><a name="L-146"></a> <span class="n">res</span> <span class="o">=</span> <span class="no">Benchmark</span><span class="o">.</span><span class="n">measure</span><span class="p">(</span><span class="o">&amp;</span><span class="n">item</span><span class="p">)</span> </span><span id="L-147"><a name="L-147"></a> <span class="nb">print</span> <span class="n">res</span><span class="o">.</span><span class="n">format</span> </span><span id="L-148"><a name="L-148"></a> <span class="n">sum</span> <span class="o">+</span> <span class="n">res</span> </span><span id="L-149"><a name="L-149"></a> <span class="p">}</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="s2">&quot;total: %tsec&quot;</span><span class="p">)</span> </span><span id="L-150"><a name="L-150"></a> <span class="nb">print</span> <span class="s2">&quot; </span><span class="si">#{</span><span class="n">ets</span><span class="si">}</span><span class="se">\n\n</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">rjust</span><span class="p">(</span><span class="n">width</span><span class="o">+</span><span class="no">CAPTION</span><span class="o">.</span><span class="n">length</span><span class="o">+</span><span class="mi">2</span><span class="p">,</span><span class="s1">&#39;-&#39;</span><span class="p">)</span> </span><span id="L-151"><a name="L-151"></a> </span><span id="L-152"><a name="L-152"></a> <span class="c1"># take</span> </span><span id="L-153"><a name="L-153"></a> <span class="nb">print</span> <span class="s1">&#39; &#39;</span><span class="o">*</span><span class="n">width</span> <span class="o">+</span> <span class="no">CAPTION</span> </span><span id="L-154"><a name="L-154"></a> <span class="n">job</span><span class="o">.</span><span class="n">list</span><span class="o">.</span><span class="n">map</span> <span class="p">{</span> <span class="o">|</span><span class="n">label</span><span class="p">,</span><span class="n">item</span><span class="o">|</span> </span><span id="L-155"><a name="L-155"></a> <span class="no">GC</span><span class="o">.</span><span class="n">start</span> </span><span id="L-156"><a name="L-156"></a> <span class="nb">print</span> <span class="n">label</span><span class="o">.</span><span class="n">ljust</span><span class="p">(</span><span class="n">width</span><span class="p">)</span> </span><span id="L-157"><a name="L-157"></a> <span class="no">Benchmark</span><span class="o">.</span><span class="n">measure</span><span class="p">(</span><span class="n">label</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">item</span><span class="p">)</span><span class="o">.</span><span class="n">tap</span> <span class="p">{</span> <span class="o">|</span><span class="n">res</span><span class="o">|</span> <span class="nb">print</span> <span class="n">res</span> <span class="p">}</span> </span><span id="L-158"><a name="L-158"></a> <span class="p">}</span> </span><span id="L-159"><a name="L-159"></a> <span class="k">ensure</span> </span><span id="L-160"><a name="L-160"></a> <span class="no">STDOUT</span><span class="o">.</span><span class="n">sync</span> <span class="o">=</span> <span class="n">sync</span> <span class="k">unless</span> <span class="n">sync</span><span class="o">.</span><span class="n">nil?</span> </span><span id="L-161"><a name="L-161"></a> <span class="k">end</span> </span><span id="L-162"><a name="L-162"></a> </span><span id="L-163"><a name="L-163"></a> <span class="c1">#</span> </span><span id="L-164"><a name="L-164"></a> <span class="c1"># Returns the time used to execute the given block as a</span> </span><span id="L-165"><a name="L-165"></a> <span class="c1"># Benchmark::Tms object.</span> </span><span id="L-166"><a name="L-166"></a> <span class="c1">#</span> </span><span id="L-167"><a name="L-167"></a> <span class="k">def</span> <span class="nf">measure</span><span class="p">(</span><span class="n">label</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="p">)</span> <span class="c1"># :yield:</span> </span><span id="L-168"><a name="L-168"></a> <span class="n">t0</span><span class="p">,</span> <span class="n">r0</span> <span class="o">=</span> <span class="no">Process</span><span class="o">.</span><span class="n">times</span><span class="p">,</span> <span class="no">Time</span><span class="o">.</span><span class="n">now</span> </span><span id="L-169"><a name="L-169"></a> <span class="k">yield</span> </span><span id="L-170"><a name="L-170"></a> <span class="n">t1</span><span class="p">,</span> <span class="n">r1</span> <span class="o">=</span> <span class="no">Process</span><span class="o">.</span><span class="n">times</span><span class="p">,</span> <span class="no">Time</span><span class="o">.</span><span class="n">now</span> </span><span id="L-171"><a name="L-171"></a> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">t1</span><span class="o">.</span><span class="n">utime</span> <span class="o">-</span> <span class="n">t0</span><span class="o">.</span><span class="n">utime</span><span class="p">,</span> </span><span id="L-172"><a name="L-172"></a> <span class="n">t1</span><span class="o">.</span><span class="n">stime</span> <span class="o">-</span> <span class="n">t0</span><span class="o">.</span><span class="n">stime</span><span class="p">,</span> </span><span id="L-173"><a name="L-173"></a> <span class="n">t1</span><span class="o">.</span><span class="n">cutime</span> <span class="o">-</span> <span class="n">t0</span><span class="o">.</span><span class="n">cutime</span><span class="p">,</span> </span><span id="L-174"><a name="L-174"></a> <span class="n">t1</span><span class="o">.</span><span class="n">cstime</span> <span class="o">-</span> <span class="n">t0</span><span class="o">.</span><span class="n">cstime</span><span class="p">,</span> </span><span id="L-175"><a name="L-175"></a> <span class="n">r1</span><span class="o">.</span><span class="n">to_f</span> <span class="o">-</span> <span class="n">r0</span><span class="o">.</span><span class="n">to_f</span><span class="p">,</span> </span><span id="L-176"><a name="L-176"></a> <span class="n">label</span><span class="p">)</span> </span><span id="L-177"><a name="L-177"></a> <span class="k">end</span> </span><span id="L-178"><a name="L-178"></a> </span><span id="L-179"><a name="L-179"></a> <span class="c1">#</span> </span><span id="L-180"><a name="L-180"></a> <span class="c1"># Returns the elapsed real time used to execute the given block.</span> </span><span id="L-181"><a name="L-181"></a> <span class="c1">#</span> </span><span id="L-182"><a name="L-182"></a> <span class="k">def</span> <span class="nf">realtime</span> <span class="c1"># :yield:</span> </span><span id="L-183"><a name="L-183"></a> <span class="n">r0</span> <span class="o">=</span> <span class="no">Time</span><span class="o">.</span><span class="n">now</span> </span><span id="L-184"><a name="L-184"></a> <span class="k">yield</span> </span><span id="L-185"><a name="L-185"></a> <span class="no">Time</span><span class="o">.</span><span class="n">now</span> <span class="o">-</span> <span class="n">r0</span> </span><span id="L-186"><a name="L-186"></a> <span class="k">end</span> </span><span id="L-187"><a name="L-187"></a> </span><span id="L-188"><a name="L-188"></a> <span class="kp">module_function</span> <span class="ss">:benchmark</span><span class="p">,</span> <span class="ss">:measure</span><span class="p">,</span> <span class="ss">:realtime</span><span class="p">,</span> <span class="ss">:bm</span><span class="p">,</span> <span class="ss">:bmbm</span> </span><span id="L-189"><a name="L-189"></a> </span><span id="L-190"><a name="L-190"></a> <span class="c1">#</span> </span><span id="L-191"><a name="L-191"></a> <span class="c1"># A Job is a sequence of labelled blocks to be processed by the</span> </span><span id="L-192"><a name="L-192"></a> <span class="c1"># Benchmark.bmbm method. It is of little direct interest to the user.</span> </span><span id="L-193"><a name="L-193"></a> <span class="c1">#</span> </span><span id="L-194"><a name="L-194"></a> <span class="k">class</span> <span class="nc">Job</span> <span class="c1"># :nodoc:</span> </span><span id="L-195"><a name="L-195"></a> <span class="c1">#</span> </span><span id="L-196"><a name="L-196"></a> <span class="c1"># Returns an initialized Job instance.</span> </span><span id="L-197"><a name="L-197"></a> <span class="c1"># Usually, one doesn&#39;t call this method directly, as new</span> </span><span id="L-198"><a name="L-198"></a> <span class="c1"># Job objects are created by the #bmbm method.</span> </span><span id="L-199"><a name="L-199"></a> <span class="c1"># _width_ is a initial value for the label offset used in formatting;</span> </span><span id="L-200"><a name="L-200"></a> <span class="c1"># the #bmbm method passes its _width_ argument to this constructor.</span> </span><span id="L-201"><a name="L-201"></a> <span class="c1">#</span> </span><span id="L-202"><a name="L-202"></a> <span class="k">def</span> <span class="nf">initialize</span><span class="p">(</span><span class="n">width</span><span class="p">)</span> </span><span id="L-203"><a name="L-203"></a> <span class="vi">@width</span> <span class="o">=</span> <span class="n">width</span> </span><span id="L-204"><a name="L-204"></a> <span class="vi">@list</span> <span class="o">=</span> <span class="o">[]</span> </span><span id="L-205"><a name="L-205"></a> <span class="k">end</span> </span><span id="L-206"><a name="L-206"></a> </span><span id="L-207"><a name="L-207"></a> <span class="c1">#</span> </span><span id="L-208"><a name="L-208"></a> <span class="c1"># Registers the given label and block pair in the job list.</span> </span><span id="L-209"><a name="L-209"></a> <span class="c1">#</span> </span><span id="L-210"><a name="L-210"></a> <span class="k">def</span> <span class="nf">item</span><span class="p">(</span><span class="n">label</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> <span class="c1"># :yield:</span> </span><span id="L-211"><a name="L-211"></a> <span class="k">raise</span> <span class="no">ArgumentError</span><span class="p">,</span> <span class="s2">&quot;no block&quot;</span> <span class="k">unless</span> <span class="nb">block_given?</span> </span><span id="L-212"><a name="L-212"></a> <span class="n">label</span> <span class="o">=</span> <span class="n">label</span><span class="o">.</span><span class="n">to_s</span> </span><span id="L-213"><a name="L-213"></a> <span class="n">w</span> <span class="o">=</span> <span class="n">label</span><span class="o">.</span><span class="n">length</span> </span><span id="L-214"><a name="L-214"></a> <span class="vi">@width</span> <span class="o">=</span> <span class="n">w</span> <span class="k">if</span> <span class="vi">@width</span> <span class="o">&lt;</span> <span class="n">w</span> </span><span id="L-215"><a name="L-215"></a> <span class="vi">@list</span> <span class="o">&lt;&lt;</span> <span class="o">[</span><span class="n">label</span><span class="p">,</span> <span class="n">blk</span><span class="o">]</span> </span><span id="L-216"><a name="L-216"></a> <span class="nb">self</span> </span><span id="L-217"><a name="L-217"></a> <span class="k">end</span> </span><span id="L-218"><a name="L-218"></a> </span><span id="L-219"><a name="L-219"></a> <span class="k">alias</span> <span class="n">report</span> <span class="n">item</span> </span><span id="L-220"><a name="L-220"></a> </span><span id="L-221"><a name="L-221"></a> <span class="c1"># An array of 2-element arrays, consisting of label and block pairs.</span> </span><span id="L-222"><a name="L-222"></a> <span class="kp">attr_reader</span> <span class="ss">:list</span> </span><span id="L-223"><a name="L-223"></a> </span><span id="L-224"><a name="L-224"></a> <span class="c1"># Length of the widest label in the #list.</span> </span><span id="L-225"><a name="L-225"></a> <span class="kp">attr_reader</span> <span class="ss">:width</span> </span><span id="L-226"><a name="L-226"></a> <span class="k">end</span> </span><span id="L-227"><a name="L-227"></a> </span><span id="L-228"><a name="L-228"></a> <span class="c1">#</span> </span><span id="L-229"><a name="L-229"></a> <span class="c1"># This class is used by the Benchmark.benchmark and Benchmark.bm methods.</span> </span><span id="L-230"><a name="L-230"></a> <span class="c1"># It is of little direct interest to the user.</span> </span><span id="L-231"><a name="L-231"></a> <span class="c1">#</span> </span><span id="L-232"><a name="L-232"></a> <span class="k">class</span> <span class="nc">Report</span> <span class="c1"># :nodoc:</span> </span><span id="L-233"><a name="L-233"></a> <span class="c1">#</span> </span><span id="L-234"><a name="L-234"></a> <span class="c1"># Returns an initialized Report instance.</span> </span><span id="L-235"><a name="L-235"></a> <span class="c1"># Usually, one doesn&#39;t call this method directly, as new</span> </span><span id="L-236"><a name="L-236"></a> <span class="c1"># Report objects are created by the #benchmark and #bm methods.</span> </span><span id="L-237"><a name="L-237"></a> <span class="c1"># _width_ and _format_ are the label offset and</span> </span><span id="L-238"><a name="L-238"></a> <span class="c1"># format string used by Tms#format.</span> </span><span id="L-239"><a name="L-239"></a> <span class="c1">#</span> </span><span id="L-240"><a name="L-240"></a> <span class="k">def</span> <span class="nf">initialize</span><span class="p">(</span><span class="n">width</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="nb">format</span> <span class="o">=</span> <span class="kp">nil</span><span class="p">)</span> </span><span id="L-241"><a name="L-241"></a> <span class="vi">@width</span><span class="p">,</span> <span class="vi">@format</span><span class="p">,</span> <span class="vi">@list</span> <span class="o">=</span> <span class="n">width</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="o">[]</span> </span><span id="L-242"><a name="L-242"></a> <span class="k">end</span> </span><span id="L-243"><a name="L-243"></a> </span><span id="L-244"><a name="L-244"></a> <span class="c1">#</span> </span><span id="L-245"><a name="L-245"></a> <span class="c1"># Prints the _label_ and measured time for the block,</span> </span><span id="L-246"><a name="L-246"></a> <span class="c1"># formatted by _format_. See Tms#format for the</span> </span><span id="L-247"><a name="L-247"></a> <span class="c1"># formatting rules.</span> </span><span id="L-248"><a name="L-248"></a> <span class="c1">#</span> </span><span id="L-249"><a name="L-249"></a> <span class="k">def</span> <span class="nf">item</span><span class="p">(</span><span class="n">label</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="o">*</span><span class="nb">format</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> <span class="c1"># :yield:</span> </span><span id="L-250"><a name="L-250"></a> <span class="nb">print</span> <span class="n">label</span><span class="o">.</span><span class="n">to_s</span><span class="o">.</span><span class="n">ljust</span><span class="p">(</span><span class="vi">@width</span><span class="p">)</span> </span><span id="L-251"><a name="L-251"></a> <span class="vi">@list</span> <span class="o">&lt;&lt;</span> <span class="n">res</span> <span class="o">=</span> <span class="no">Benchmark</span><span class="o">.</span><span class="n">measure</span><span class="p">(</span><span class="n">label</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> </span><span id="L-252"><a name="L-252"></a> <span class="nb">print</span> <span class="n">res</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="vi">@format</span><span class="p">,</span> <span class="o">*</span><span class="nb">format</span><span class="p">)</span> </span><span id="L-253"><a name="L-253"></a> <span class="n">res</span> </span><span id="L-254"><a name="L-254"></a> <span class="k">end</span> </span><span id="L-255"><a name="L-255"></a> </span><span id="L-256"><a name="L-256"></a> <span class="k">alias</span> <span class="n">report</span> <span class="n">item</span> </span><span id="L-257"><a name="L-257"></a> </span><span id="L-258"><a name="L-258"></a> <span class="c1"># An array of Benchmark::Tms objects representing each item.</span> </span><span id="L-259"><a name="L-259"></a> <span class="kp">attr_reader</span> <span class="ss">:list</span> </span><span id="L-260"><a name="L-260"></a> <span class="k">end</span> </span><span id="L-261"><a name="L-261"></a> </span><span id="L-262"><a name="L-262"></a> </span><span id="L-263"><a name="L-263"></a> </span><span id="L-264"><a name="L-264"></a> <span class="c1">#</span> </span><span id="L-265"><a name="L-265"></a> <span class="c1"># A data object, representing the times associated with a benchmark</span> </span><span id="L-266"><a name="L-266"></a> <span class="c1"># measurement.</span> </span><span id="L-267"><a name="L-267"></a> <span class="c1">#</span> </span><span id="L-268"><a name="L-268"></a> <span class="k">class</span> <span class="nc">Tms</span> </span><span id="L-269"><a name="L-269"></a> </span><span id="L-270"><a name="L-270"></a> <span class="c1"># Default caption, see also Benchmark::CAPTION</span> </span><span id="L-271"><a name="L-271"></a> <span class="no">CAPTION</span> <span class="o">=</span> <span class="s2">&quot; user system total real</span><span class="se">\n</span><span class="s2">&quot;</span> </span><span id="L-272"><a name="L-272"></a> </span><span id="L-273"><a name="L-273"></a> <span class="c1"># Default format string, see also Benchmark::FORMAT</span> </span><span id="L-274"><a name="L-274"></a> <span class="no">FORMAT</span> <span class="o">=</span> <span class="s2">&quot;%10.6u %10.6y %10.6t %10.6r</span><span class="se">\n</span><span class="s2">&quot;</span> </span><span id="L-275"><a name="L-275"></a> </span><span id="L-276"><a name="L-276"></a> <span class="c1"># User CPU time</span> </span><span id="L-277"><a name="L-277"></a> <span class="kp">attr_reader</span> <span class="ss">:utime</span> </span><span id="L-278"><a name="L-278"></a> </span><span id="L-279"><a name="L-279"></a> <span class="c1"># System CPU time</span> </span><span id="L-280"><a name="L-280"></a> <span class="kp">attr_reader</span> <span class="ss">:stime</span> </span><span id="L-281"><a name="L-281"></a> </span><span id="L-282"><a name="L-282"></a> <span class="c1"># User CPU time of children</span> </span><span id="L-283"><a name="L-283"></a> <span class="kp">attr_reader</span> <span class="ss">:cutime</span> </span><span id="L-284"><a name="L-284"></a> </span><span id="L-285"><a name="L-285"></a> <span class="c1"># System CPU time of children</span> </span><span id="L-286"><a name="L-286"></a> <span class="kp">attr_reader</span> <span class="ss">:cstime</span> </span><span id="L-287"><a name="L-287"></a> </span><span id="L-288"><a name="L-288"></a> <span class="c1"># Elapsed real time</span> </span><span id="L-289"><a name="L-289"></a> <span class="kp">attr_reader</span> <span class="ss">:real</span> </span><span id="L-290"><a name="L-290"></a> </span><span id="L-291"><a name="L-291"></a> <span class="c1"># Total time, that is _utime_ + _stime_ + _cutime_ + _cstime_</span> </span><span id="L-292"><a name="L-292"></a> <span class="kp">attr_reader</span> <span class="ss">:total</span> </span><span id="L-293"><a name="L-293"></a> </span><span id="L-294"><a name="L-294"></a> <span class="c1"># Label</span> </span><span id="L-295"><a name="L-295"></a> <span class="kp">attr_reader</span> <span class="ss">:label</span> </span><span id="L-296"><a name="L-296"></a> </span><span id="L-297"><a name="L-297"></a> <span class="c1">#</span> </span><span id="L-298"><a name="L-298"></a> <span class="c1"># Returns an initialized Tms object which has</span> </span><span id="L-299"><a name="L-299"></a> <span class="c1"># _utime_ as the user CPU time, _stime_ as the system CPU time,</span> </span><span id="L-300"><a name="L-300"></a> <span class="c1"># _cutime_ as the children&#39;s user CPU time, _cstime_ as the children&#39;s</span> </span><span id="L-301"><a name="L-301"></a> <span class="c1"># system CPU time, _real_ as the elapsed real time and _label_ as the label.</span> </span><span id="L-302"><a name="L-302"></a> <span class="c1">#</span> </span><span id="L-303"><a name="L-303"></a> <span class="k">def</span> <span class="nf">initialize</span><span class="p">(</span><span class="n">utime</span> <span class="o">=</span> <span class="mi">0</span><span class="o">.</span><span class="mi">0</span><span class="p">,</span> <span class="n">stime</span> <span class="o">=</span> <span class="mi">0</span><span class="o">.</span><span class="mi">0</span><span class="p">,</span> <span class="n">cutime</span> <span class="o">=</span> <span class="mi">0</span><span class="o">.</span><span class="mi">0</span><span class="p">,</span> <span class="n">cstime</span> <span class="o">=</span> <span class="mi">0</span><span class="o">.</span><span class="mi">0</span><span class="p">,</span> <span class="n">real</span> <span class="o">=</span> <span class="mi">0</span><span class="o">.</span><span class="mi">0</span><span class="p">,</span> <span class="n">label</span> <span class="o">=</span> <span class="kp">nil</span><span class="p">)</span> </span><span id="L-304"><a name="L-304"></a> <span class="vi">@utime</span><span class="p">,</span> <span class="vi">@stime</span><span class="p">,</span> <span class="vi">@cutime</span><span class="p">,</span> <span class="vi">@cstime</span><span class="p">,</span> <span class="vi">@real</span><span class="p">,</span> <span class="vi">@label</span> <span class="o">=</span> <span class="n">utime</span><span class="p">,</span> <span class="n">stime</span><span class="p">,</span> <span class="n">cutime</span><span class="p">,</span> <span class="n">cstime</span><span class="p">,</span> <span class="n">real</span><span class="p">,</span> <span class="n">label</span><span class="o">.</span><span class="n">to_s</span> </span><span id="L-305"><a name="L-305"></a> <span class="vi">@total</span> <span class="o">=</span> <span class="vi">@utime</span> <span class="o">+</span> <span class="vi">@stime</span> <span class="o">+</span> <span class="vi">@cutime</span> <span class="o">+</span> <span class="vi">@cstime</span> </span><span id="L-306"><a name="L-306"></a> <span class="k">end</span> </span><span id="L-307"><a name="L-307"></a> </span><span id="L-308"><a name="L-308"></a> <span class="c1">#</span> </span><span id="L-309"><a name="L-309"></a> <span class="c1"># Returns a new Tms object whose times are the sum of the times for this</span> </span><span id="L-310"><a name="L-310"></a> <span class="c1"># Tms object, plus the time required to execute the code block (_blk_).</span> </span><span id="L-311"><a name="L-311"></a> <span class="c1">#</span> </span><span id="L-312"><a name="L-312"></a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> <span class="c1"># :yield:</span> </span><span id="L-313"><a name="L-313"></a> <span class="nb">self</span> <span class="o">+</span> <span class="no">Benchmark</span><span class="o">.</span><span class="n">measure</span><span class="p">(</span><span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> </span><span id="L-314"><a name="L-314"></a> <span class="k">end</span> </span><span id="L-315"><a name="L-315"></a> </span><span id="L-316"><a name="L-316"></a> <span class="c1">#</span> </span><span id="L-317"><a name="L-317"></a> <span class="c1"># An in-place version of #add.</span> </span><span id="L-318"><a name="L-318"></a> <span class="c1">#</span> </span><span id="L-319"><a name="L-319"></a> <span class="k">def</span> <span class="nf">add!</span><span class="p">(</span><span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> </span><span id="L-320"><a name="L-320"></a> <span class="n">t</span> <span class="o">=</span> <span class="no">Benchmark</span><span class="o">.</span><span class="n">measure</span><span class="p">(</span><span class="o">&amp;</span><span class="n">blk</span><span class="p">)</span> </span><span id="L-321"><a name="L-321"></a> <span class="vi">@utime</span> <span class="o">=</span> <span class="n">utime</span> <span class="o">+</span> <span class="n">t</span><span class="o">.</span><span class="n">utime</span> </span><span id="L-322"><a name="L-322"></a> <span class="vi">@stime</span> <span class="o">=</span> <span class="n">stime</span> <span class="o">+</span> <span class="n">t</span><span class="o">.</span><span class="n">stime</span> </span><span id="L-323"><a name="L-323"></a> <span class="vi">@cutime</span> <span class="o">=</span> <span class="n">cutime</span> <span class="o">+</span> <span class="n">t</span><span class="o">.</span><span class="n">cutime</span> </span><span id="L-324"><a name="L-324"></a> <span class="vi">@cstime</span> <span class="o">=</span> <span class="n">cstime</span> <span class="o">+</span> <span class="n">t</span><span class="o">.</span><span class="n">cstime</span> </span><span id="L-325"><a name="L-325"></a> <span class="vi">@real</span> <span class="o">=</span> <span class="n">real</span> <span class="o">+</span> <span class="n">t</span><span class="o">.</span><span class="n">real</span> </span><span id="L-326"><a name="L-326"></a> <span class="nb">self</span> </span><span id="L-327"><a name="L-327"></a> <span class="k">end</span> </span><span id="L-328"><a name="L-328"></a> </span><span id="L-329"><a name="L-329"></a> <span class="c1">#</span> </span><span id="L-330"><a name="L-330"></a> <span class="c1"># Returns a new Tms object obtained by memberwise summation</span> </span><span id="L-331"><a name="L-331"></a> <span class="c1"># of the individual times for this Tms object with those of the other</span> </span><span id="L-332"><a name="L-332"></a> <span class="c1"># Tms object.</span> </span><span id="L-333"><a name="L-333"></a> <span class="c1"># This method and #/() are useful for taking statistics.</span> </span><span id="L-334"><a name="L-334"></a> <span class="c1">#</span> </span><span id="L-335"><a name="L-335"></a> <span class="k">def</span> <span class="nf">+</span><span class="p">(</span><span class="n">other</span><span class="p">);</span> <span class="n">memberwise</span><span class="p">(</span><span class="ss">:+</span><span class="p">,</span> <span class="n">other</span><span class="p">)</span> <span class="k">end</span> </span><span id="L-336"><a name="L-336"></a> </span><span id="L-337"><a name="L-337"></a> <span class="c1">#</span> </span><span id="L-338"><a name="L-338"></a> <span class="c1"># Returns a new Tms object obtained by memberwise subtraction</span> </span><span id="L-339"><a name="L-339"></a> <span class="c1"># of the individual times for the other Tms object from those of this</span> </span><span id="L-340"><a name="L-340"></a> <span class="c1"># Tms object.</span> </span><span id="L-341"><a name="L-341"></a> <span class="c1">#</span> </span><span id="L-342"><a name="L-342"></a> <span class="k">def</span> <span class="nf">-</span><span class="p">(</span><span class="n">other</span><span class="p">);</span> <span class="n">memberwise</span><span class="p">(</span><span class="ss">:-</span><span class="p">,</span> <span class="n">other</span><span class="p">)</span> <span class="k">end</span> </span><span id="L-343"><a name="L-343"></a> </span><span id="L-344"><a name="L-344"></a> <span class="c1">#</span> </span><span id="L-345"><a name="L-345"></a> <span class="c1"># Returns a new Tms object obtained by memberwise multiplication</span> </span><span id="L-346"><a name="L-346"></a> <span class="c1"># of the individual times for this Tms object by _x_.</span> </span><span id="L-347"><a name="L-347"></a> <span class="c1">#</span> </span><span id="L-348"><a name="L-348"></a> <span class="k">def</span> <span class="nf">*</span><span class="p">(</span><span class="n">x</span><span class="p">);</span> <span class="n">memberwise</span><span class="p">(</span><span class="ss">:*</span><span class="p">,</span> <span class="n">x</span><span class="p">)</span> <span class="k">end</span> </span><span id="L-349"><a name="L-349"></a> </span><span id="L-350"><a name="L-350"></a> <span class="c1">#</span> </span><span id="L-351"><a name="L-351"></a> <span class="c1"># Returns a new Tms object obtained by memberwise division</span> </span><span id="L-352"><a name="L-352"></a> <span class="c1"># of the individual times for this Tms object by _x_.</span> </span><span id="L-353"><a name="L-353"></a> <span class="c1"># This method and #+() are useful for taking statistics.</span> </span><span id="L-354"><a name="L-354"></a> <span class="c1">#</span> </span><span id="L-355"><a name="L-355"></a> <span class="k">def</span> <span class="nf">/</span><span class="p">(</span><span class="n">x</span><span class="p">);</span> <span class="n">memberwise</span><span class="p">(</span><span class="ss">:/</span><span class="p">,</span> <span class="n">x</span><span class="p">)</span> <span class="k">end</span> </span><span id="L-356"><a name="L-356"></a> </span><span id="L-357"><a name="L-357"></a> <span class="c1">#</span> </span><span id="L-358"><a name="L-358"></a> <span class="c1"># Returns the contents of this Tms object as</span> </span><span id="L-359"><a name="L-359"></a> <span class="c1"># a formatted string, according to a format string</span> </span><span id="L-360"><a name="L-360"></a> <span class="c1"># like that passed to Kernel.format. In addition, #format</span> </span><span id="L-361"><a name="L-361"></a> <span class="c1"># accepts the following extensions:</span> </span><span id="L-362"><a name="L-362"></a> <span class="c1">#</span> </span><span id="L-363"><a name="L-363"></a> <span class="c1"># &lt;tt&gt;%u&lt;/tt&gt;:: Replaced by the user CPU time, as reported by Tms#utime.</span> </span><span id="L-364"><a name="L-364"></a> <span class="c1"># &lt;tt&gt;%y&lt;/tt&gt;:: Replaced by the system CPU time, as reported by #stime (Mnemonic: y of &quot;s*y*stem&quot;)</span> </span><span id="L-365"><a name="L-365"></a> <span class="c1"># &lt;tt&gt;%U&lt;/tt&gt;:: Replaced by the children&#39;s user CPU time, as reported by Tms#cutime</span> </span><span id="L-366"><a name="L-366"></a> <span class="c1"># &lt;tt&gt;%Y&lt;/tt&gt;:: Replaced by the children&#39;s system CPU time, as reported by Tms#cstime</span> </span><span id="L-367"><a name="L-367"></a> <span class="c1"># &lt;tt&gt;%t&lt;/tt&gt;:: Replaced by the total CPU time, as reported by Tms#total</span> </span><span id="L-368"><a name="L-368"></a> <span class="c1"># &lt;tt&gt;%r&lt;/tt&gt;:: Replaced by the elapsed real time, as reported by Tms#real</span> </span><span id="L-369"><a name="L-369"></a> <span class="c1"># &lt;tt&gt;%n&lt;/tt&gt;:: Replaced by the label string, as reported by Tms#label (Mnemonic: n of &quot;*n*ame&quot;)</span> </span><span id="L-370"><a name="L-370"></a> <span class="c1">#</span> </span><span id="L-371"><a name="L-371"></a> <span class="c1"># If _format_ is not given, FORMAT is used as default value, detailing the</span> </span><span id="L-372"><a name="L-372"></a> <span class="c1"># user, system and real elapsed time.</span> </span><span id="L-373"><a name="L-373"></a> <span class="c1">#</span> </span><span id="L-374"><a name="L-374"></a> <span class="k">def</span> <span class="nf">format</span><span class="p">(</span><span class="nb">format</span> <span class="o">=</span> <span class="kp">nil</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">)</span> </span><span id="L-375"><a name="L-375"></a> <span class="n">str</span> <span class="o">=</span> <span class="p">(</span><span class="nb">format</span> <span class="o">||</span> <span class="no">FORMAT</span><span class="p">)</span><span class="o">.</span><span class="n">dup</span> </span><span id="L-376"><a name="L-376"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)n/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">s&quot;</span> <span class="o">%</span> <span class="n">label</span> <span class="p">}</span> </span><span id="L-377"><a name="L-377"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)u/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f&quot;</span> <span class="o">%</span> <span class="n">utime</span> <span class="p">}</span> </span><span id="L-378"><a name="L-378"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)y/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f&quot;</span> <span class="o">%</span> <span class="n">stime</span> <span class="p">}</span> </span><span id="L-379"><a name="L-379"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)U/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f&quot;</span> <span class="o">%</span> <span class="n">cutime</span> <span class="p">}</span> </span><span id="L-380"><a name="L-380"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)Y/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f&quot;</span> <span class="o">%</span> <span class="n">cstime</span> <span class="p">}</span> </span><span id="L-381"><a name="L-381"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)t/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f&quot;</span> <span class="o">%</span> <span class="n">total</span> <span class="p">}</span> </span><span id="L-382"><a name="L-382"></a> <span class="n">str</span><span class="o">.</span><span class="n">gsub!</span><span class="p">(</span><span class="sr">/(%[-+\.\d]*)r/</span><span class="p">)</span> <span class="p">{</span> <span class="s2">&quot;(</span><span class="si">#{</span><span class="vg">$1</span><span class="si">}</span><span class="s2">f)&quot;</span> <span class="o">%</span> <span class="n">real</span> <span class="p">}</span> </span><span id="L-383"><a name="L-383"></a> <span class="nb">format</span> <span class="p">?</span> <span class="n">str</span> <span class="o">%</span> <span class="n">args</span> <span class="p">:</span> <span class="n">str</span> </span><span id="L-384"><a name="L-384"></a> <span class="k">end</span> </span><span id="L-385"><a name="L-385"></a> </span><span id="L-386"><a name="L-386"></a> <span class="c1">#</span> </span><span id="L-387"><a name="L-387"></a> <span class="c1"># Same as #format.</span> </span><span id="L-388"><a name="L-388"></a> <span class="c1">#</span> </span><span id="L-389"><a name="L-389"></a> <span class="k">def</span> <span class="nf">to_s</span> </span><span id="L-390"><a name="L-390"></a> <span class="nb">format</span> </span><span id="L-391"><a name="L-391"></a> <span class="k">end</span> </span><span id="L-392"><a name="L-392"></a> </span><span id="L-393"><a name="L-393"></a> <span class="c1">#</span> </span><span id="L-394"><a name="L-394"></a> <span class="c1"># Returns a new 6-element array, consisting of the</span> </span><span id="L-395"><a name="L-395"></a> <span class="c1"># label, user CPU time, system CPU time, children&#39;s</span> </span><span id="L-396"><a name="L-396"></a> <span class="c1"># user CPU time, children&#39;s system CPU time and elapsed</span> </span><span id="L-397"><a name="L-397"></a> <span class="c1"># real time.</span> </span><span id="L-398"><a name="L-398"></a> <span class="c1">#</span> </span><span id="L-399"><a name="L-399"></a> <span class="k">def</span> <span class="nf">to_a</span> </span><span id="L-400"><a name="L-400"></a> <span class="o">[</span><span class="vi">@label</span><span class="p">,</span> <span class="vi">@utime</span><span class="p">,</span> <span class="vi">@stime</span><span class="p">,</span> <span class="vi">@cutime</span><span class="p">,</span> <span class="vi">@cstime</span><span class="p">,</span> <span class="vi">@real</span><span class="o">]</span> </span><span id="L-401"><a name="L-401"></a> <span class="k">end</span> </span><span id="L-402"><a name="L-402"></a> </span><span id="L-403"><a name="L-403"></a> <span class="kp">protected</span> </span><span id="L-404"><a name="L-404"></a> </span><span id="L-405"><a name="L-405"></a> <span class="c1">#</span> </span><span id="L-406"><a name="L-406"></a> <span class="c1"># Returns a new Tms object obtained by memberwise operation +op+</span> </span><span id="L-407"><a name="L-407"></a> <span class="c1"># of the individual times for this Tms object with those of the other</span> </span><span id="L-408"><a name="L-408"></a> <span class="c1"># Tms object.</span> </span><span id="L-409"><a name="L-409"></a> <span class="c1">#</span> </span><span id="L-410"><a name="L-410"></a> <span class="c1"># +op+ can be a mathematical operation such as &lt;tt&gt;+&lt;/tt&gt;, &lt;tt&gt;-&lt;/tt&gt;,</span> </span><span id="L-411"><a name="L-411"></a> <span class="c1"># &lt;tt&gt;*&lt;/tt&gt;, &lt;tt&gt;/&lt;/tt&gt;</span> </span><span id="L-412"><a name="L-412"></a> <span class="c1">#</span> </span><span id="L-413"><a name="L-413"></a> <span class="k">def</span> <span class="nf">memberwise</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">)</span> </span><span id="L-414"><a name="L-414"></a> <span class="k">case</span> <span class="n">x</span> </span><span id="L-415"><a name="L-415"></a> <span class="k">when</span> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span> </span><span id="L-416"><a name="L-416"></a> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">utime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">utime</span><span class="p">),</span> </span><span id="L-417"><a name="L-417"></a> <span class="n">stime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">stime</span><span class="p">),</span> </span><span id="L-418"><a name="L-418"></a> <span class="n">cutime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">cutime</span><span class="p">),</span> </span><span id="L-419"><a name="L-419"></a> <span class="n">cstime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">cstime</span><span class="p">),</span> </span><span id="L-420"><a name="L-420"></a> <span class="n">real</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="o">.</span><span class="n">real</span><span class="p">)</span> </span><span id="L-421"><a name="L-421"></a> <span class="p">)</span> </span><span id="L-422"><a name="L-422"></a> <span class="k">else</span> </span><span id="L-423"><a name="L-423"></a> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="n">utime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> </span><span id="L-424"><a name="L-424"></a> <span class="n">stime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> </span><span id="L-425"><a name="L-425"></a> <span class="n">cutime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> </span><span id="L-426"><a name="L-426"></a> <span class="n">cstime</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> </span><span id="L-427"><a name="L-427"></a> <span class="n">real</span><span class="o">.</span><span class="n">__send__</span><span class="p">(</span><span class="n">op</span><span class="p">,</span> <span class="n">x</span><span class="p">)</span> </span><span id="L-428"><a name="L-428"></a> <span class="p">)</span> </span><span id="L-429"><a name="L-429"></a> <span class="k">end</span> </span><span id="L-430"><a name="L-430"></a> <span class="k">end</span> </span><span id="L-431"><a name="L-431"></a> <span class="k">end</span> </span><span id="L-432"><a name="L-432"></a> </span><span id="L-433"><a name="L-433"></a> <span class="c1"># The default caption string (heading above the output times).</span> </span><span id="L-434"><a name="L-434"></a> <span class="no">CAPTION</span> <span class="o">=</span> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span><span class="o">::</span><span class="no">CAPTION</span> </span><span id="L-435"><a name="L-435"></a> </span><span id="L-436"><a name="L-436"></a> <span class="c1"># The default format string used to display times. See also Benchmark::Tms#format.</span> </span><span id="L-437"><a name="L-437"></a> <span class="no">FORMAT</span> <span class="o">=</span> <span class="no">Benchmark</span><span class="o">::</span><span class="no">Tms</span><span class="o">::</span><span class="no">FORMAT</span> </span><span id="L-438"><a name="L-438"></a><span class="k">end</span> </span><span id="L-439"><a name="L-439"></a> </span><span id="L-440"><a name="L-440"></a><span class="k">if</span> <span class="bp">__FILE__</span> <span class="o">==</span> <span class="vg">$0</span> </span><span id="L-441"><a name="L-441"></a> <span class="kp">include</span> <span class="no">Benchmark</span> </span><span id="L-442"><a name="L-442"></a> </span><span id="L-443"><a name="L-443"></a> <span class="n">n</span> <span class="o">=</span> <span class="no">ARGV</span><span class="o">[</span><span class="mi">0</span><span class="o">].</span><span class="n">to_i</span><span class="o">.</span><span class="n">nonzero?</span> <span class="o">||</span> <span class="mi">50000</span> </span><span id="L-444"><a name="L-444"></a> <span class="nb">puts</span> <span class="sx">%Q([</span><span class="si">#{</span><span class="n">n</span><span class="si">}</span><span class="sx"> times iterations of `a = &quot;1&quot;&#39;])</span> </span><span id="L-445"><a name="L-445"></a> <span class="n">benchmark</span><span class="p">(</span><span class="s2">&quot; &quot;</span> <span class="o">+</span> <span class="no">CAPTION</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="no">FORMAT</span><span class="p">)</span> <span class="k">do</span> <span class="o">|</span><span class="n">x</span><span class="o">|</span> </span><span id="L-446"><a name="L-446"></a> <span class="n">x</span><span class="o">.</span><span class="n">report</span><span class="p">(</span><span class="s2">&quot;for:&quot;</span><span class="p">)</span> <span class="p">{</span><span class="k">for</span> <span class="n">_</span> <span class="k">in</span> <span class="mi">1</span><span class="o">..</span><span class="n">n</span><span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">}</span> <span class="c1"># Benchmark.measure</span> </span><span id="L-447"><a name="L-447"></a> <span class="n">x</span><span class="o">.</span><span class="n">report</span><span class="p">(</span><span class="s2">&quot;times:&quot;</span><span class="p">)</span> <span class="p">{</span><span class="n">n</span><span class="o">.</span><span class="n">times</span> <span class="k">do</span> <span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">}</span> </span><span id="L-448"><a name="L-448"></a> <span class="n">x</span><span class="o">.</span><span class="n">report</span><span class="p">(</span><span class="s2">&quot;upto:&quot;</span><span class="p">)</span> <span class="p">{</span><span class="mi">1</span><span class="o">.</span><span class="n">upto</span><span class="p">(</span><span class="n">n</span><span class="p">)</span> <span class="k">do</span> <span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">}</span> </span><span id="L-449"><a name="L-449"></a> <span class="k">end</span> </span><span id="L-450"><a name="L-450"></a> </span><span id="L-451"><a name="L-451"></a> <span class="n">benchmark</span> <span class="k">do</span> </span><span id="L-452"><a name="L-452"></a> <span class="o">[</span> </span><span id="L-453"><a name="L-453"></a> <span class="n">measure</span><span class="p">{</span><span class="k">for</span> <span class="n">_</span> <span class="k">in</span> <span class="mi">1</span><span class="o">..</span><span class="n">n</span><span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">},</span> <span class="c1"># Benchmark.measure</span> </span><span id="L-454"><a name="L-454"></a> <span class="n">measure</span><span class="p">{</span><span class="n">n</span><span class="o">.</span><span class="n">times</span> <span class="k">do</span> <span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">},</span> </span><span id="L-455"><a name="L-455"></a> <span class="n">measure</span><span class="p">{</span><span class="mi">1</span><span class="o">.</span><span class="n">upto</span><span class="p">(</span><span class="n">n</span><span class="p">)</span> <span class="k">do</span> <span class="p">;</span> <span class="n">_</span> <span class="o">=</span> <span class="s2">&quot;1&quot;</span><span class="p">;</span> <span class="k">end</span><span class="p">}</span> </span><span id="L-456"><a name="L-456"></a> <span class="o">]</span> </span><span id="L-457"><a name="L-457"></a> <span class="k">end</span> </span><span id="L-458"><a name="L-458"></a><span class="k">end</span> </span></pre></div> </td></tr></table>
benchmark, ruby