edbond · March 29, 2018 20:12
diff --git a/arrvsset.rb b/arrvsset.rb
 # frozen_string_literal: true

 require 'set'
 require 'benchmark/ips'

 ARRAY = 100_000.times.map(&:itself)
 SET = Set.new(ARRAY)

 def array_include?
  ARRAY.include?(50_000)
 end

 def set_include?
  SET.include?(50_000)
 end

 N = 10_000

 Benchmark.ips do |x|
  x.report('array') do
    N.times { array_include? }
  end

  x.report('set') do
    N.times { set_include? }
  end

  x.compare!
 end
diff --git a/result.txt b/result.txt
 Warming up --------------------------------------
               array     1.000  i/100ms
                 set    96.000  i/100ms
 Calculating -------------------------------------
               array      0.340  (± 0.0%) i/s -      2.000  in   5.889143s
                 set    960.512  (± 3.4%) i/s -      4.800k in   5.003452s

 Comparison:
                 set:      960.5 i/s
               array:        0.3 i/s - 2828.28x  slower