Benchmark::Tms

Class

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

Constants

CAPTION

Default caption, see also Benchmark::CAPTION

FORMAT

Default format string, see also Benchmark::FORMAT

Attributes

total

Read

Total time, that is utime + stime + cutime + cstime

new(utime = 0.0, stime = 0.0, cutime = 0.0, cstime = 0.0, real = 0.0, label = nil)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 432
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 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.

Instance Methods

*(x)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 480
def *(x); memberwise(:*, x) end

Returns a new Tms object obtained by memberwise multiplication of the individual times for this Tms object by x.

+(other)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 467
def +(other); memberwise(:+, other) 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.

-(other)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 474
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.

/(x)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 487
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.

add() { || ... }

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 441
def add(&blk) # :yield:
  self + Benchmark.measure(&blk)
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).

add!(&blk)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 451
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

An in-place version of add. Changes the times of this Tms object by making it the sum of the times for this Tms object, plus the time required to execute the code block (blk).

format(format = nil, *args)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 506
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

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:

%u: Replaced by the user CPU time, as reported by Tms#utime.
%y: Replaced by the system CPU time, as reported by stime (Mnemonic: y of “s*y*stem”)
%U: Replaced by the children’s user CPU time, as reported by Tms#cutime
%Y: Replaced by the children’s system CPU time, as reported by Tms#cstime
%t: Replaced by the total CPU time, as reported by Tms#total
%r: Replaced by the elapsed real time, as reported by Tms#real
%n: 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.

memberwise(op, x)

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 559
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

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 (x).

op can be a mathematical operation such as +, -, *, /

to_a

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 531
def to_a
  [@label, @utime, @stime, @cutime, @cstime, @real]
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.

to_h

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 538
def to_h
  {
    label:  @label,
    utime:  @utime,
    stime:  @stime,
    cutime: @cutime,
    cstime: @cstime,
    real:   @real
  }
end

Returns a hash containing the same data as ‘to_a`.

to_s

lib/benchmark.rb View on GitHub

          
            # File tmp/rubies/ruby-master/lib/benchmark.rb, line 521
def to_s
  format
end

Same as format.