jonas-schulze

require 'benchmark'

class Obj
  def with_condition
    respond_to?(:mythical_method) ? self.mythical_method : nil
  end

  def with_rescue
    self.mythical_method
  rescue NoMethodError

jonas-schulze

require 'benchmark'

N = 1000
BASIC_LENGTH = 10

puts RUBY_DESCRIPTION

5.times do |factor|
  length = BASIC_LENGTH * (10 ** factor)
  puts "_" * 60 + "\nLENGTH: #{length}"

jonas-schulze

require 'benchmark'

def n_func(array)
  array.inject({}) { |h, e| h[e] = e; h }
end

def n2_func(array)
  array.inject({}) { |h, e| h.merge(e => e) }
end

jonas-schulze

require 'benchmark'

class Metric
  attr_accessor :var

  def initialize(n)
    @n   = n
    @var = 22
  end

jonas-schulze

require 'benchmark'

N = 10_000_000

puts RUBY_DESCRIPTION

Benchmark.bm(15) do |x|
  x.report('parallel') do
    N.times do
      a, b = 10, 20

jonas-schulze

require 'benchmark'

class Metric
  N = 1_000_000

  def self.class_eval_with_string
    N.times do |i|
      class_eval(<<-eorb, __FILE__, __LINE__ + 1)
        def smeth_#{i}
          #{i}

jonas-schulze

require 'benchmark'

def merge!(array)
  array.inject({}) { |h, e| h.merge!(e => e) }
end

def merge(array)
  array.inject({}) { |h, e| h.merge(e => e) }
end