Benchmark example

benchmark.rb

# frozen_string_literal: true

require 'bundler/setup'
Bundler.setup :system

require 'pry-byebug'

require 'benchmark'
require 'benchmark/ips'
require 'benchmark/memory'


puts '```ruby'
puts File.read(__FILE__).gsub("\t", '  ')
puts '```'
puts
puts '### Output'
puts
puts '```'


OPTIONS = { a: 1, b: 2, c: 3 }.freeze


VARIATIONS = {
  literal: (lambda do
    { a: 1, b: 2, c: 3 }
  end),

  constant: (lambda do
    OPTIONS
  end)
}.freeze


def test
  results = VARIATIONS.each_with_object([]) do |(name, block), array|
    array << (result = block.call)
    puts "Result of #{name}:"
    pp result
    puts
  end
  uniq_size = results.uniq.size
  puts "Uniq results: #{uniq_size}"
  puts
  exit 1 if uniq_size > 1
end

test

Benchmark.ips do |x|
  VARIATIONS.each do |name, block|
    x.report(name) { block.call }
  end

  x.compare!
end

Benchmark.memory do |x|
  VARIATIONS.each do |name, block|
    x.report(name) { 100.times { block.call } }
  end

  x.compare!
end


puts '```'