dwfait

require 'benchmark/ips'


class Hash
  def old_compact
    self.select { |_, value| !value.nil? }
  end

  def old_compact!
    self.reject! { |_, value| value.nil? }

dwfait

Calculating -------------------------------------
                 old   317.000  i/100ms
                 new    14.732k i/100ms
-------------------------------------------------
                 old      3.189k (± 3.4%) i/s -     16.167k
                 new    158.659k (± 3.1%) i/s -    795.528k

Comparison:
                 new:   158658.9 i/s
                 old:     3189.4 i/s - 49.75x slower

dwfait

Calculating -------------------------------------
                 old   127.212k i/100ms
                 new   126.136k i/100ms
-------------------------------------------------
                 old      3.772M (± 8.8%) i/s -     18.573M
                 new      3.951M (± 5.8%) i/s -     19.803M

Comparison:
                 new:  3951356.5 i/s
                 old:  3771768.5 i/s - 1.05x slower

dwfait

Calculating -------------------------------------
                  ==    11.195k i/100ms
                eql?    14.323k i/100ms
-------------------------------------------------
                  ==    119.132k (± 4.5%) i/s -    604.530k
                eql?    158.007k (± 3.0%) i/s -    802.088k

Comparison:
                eql?:   158006.6 i/s
                  ==:   119131.6 i/s - 1.33x slower

dwfait

Calculating -------------------------------------
                 old   124.917k i/100ms
                 new   127.378k i/100ms
-------------------------------------------------
                 old      3.766M (± 5.0%) i/s -     18.862M
                 new      3.797M (± 4.8%) i/s -     18.979M

Comparison:
                 new:  3797241.3 i/s
                 old:  3765728.9 i/s - 1.01x slower

dwfait

Calculating -------------------------------------
                 old   307.000  i/100ms
                 new    13.803k i/100ms
-------------------------------------------------
                 old      3.136k (± 3.7%) i/s -     15.657k
                 new    155.048k (± 4.0%) i/s -    786.771k

Comparison:
                 new:   155047.6 i/s
                 old:     3135.6 i/s - 49.45x slower

dwfait

o = Object.new
def o.say_hello
  puts "Hello!"
end

o.say_hello

o.clone.say_hello

dwfait

# Benchmark when objects are equivelant:

# frozen_string_literal: true

require 'benchmark/ips'

Benchmark.ips do |x|
  a1 = (1..10_000).to_a
  a2 = (1..10_000).to_a