output.rb

# 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

  x.report('old') do
    a1.eql? a2
  end

  x.report('new') do
    a1.new_eql? a2
  end

  x.compare!
end

# RESULTS OBJECTS THE SAME: 
Warming up --------------------------------------
                 old     1.572k i/100ms
                 new    12.193k i/100ms
Calculating -------------------------------------
                 old     15.827k (± 1.5%) i/s -     80.172k in   5.066524s
                 new    129.381k (± 1.7%) i/s -    658.422k in   5.090635s

Comparison:
                 new:   129380.8 i/s
                 old:    15827.3 i/s - 8.17x  slower
                   
                   
                   
--------------------------
                   
                   
# BENCHMARK WHEN OBJECTS DIFFER:
                   
# frozen_string_literal: true

require 'benchmark/ips'

Benchmark.ips do |x|
  a1 = Array.new(100_000, Object.new)
  a2 = Array.new(100_000, Object.new)

  x.report('old') do
    a1.eql? a2
  end

  x.report('new') do
    a1.new_eql? a2
  end

  x.compare!
end

# OBJECTS DIFFER RESULTS:
Warming up --------------------------------------
                 old   219.657k i/100ms
                 new   216.399k i/100ms
Calculating -------------------------------------
                 old      4.036M (± 4.7%) i/s -     20.208M in   5.021196s
                 new      4.290M (± 5.0%) i/s -     21.424M in   5.012614s

Comparison:
                 new:  4290447.8 i/s
                 old:  4035564.7 i/s - same-ish: difference falls within error