raw.rb

#! /usr/bin/env ruby
# frozen_string_literal: true

require 'benchmark'

puts "Ruby version: #{RUBY_VERSION}"

h = {}
1000.times do |i|
  h[i] = i.to_s
end

count = 50_000_000

indexes = count.times.map { rand(1000) }

h2 = {}
Benchmark.bm do |x|
  x.report('values') { 500_000.times { h.values } }
  x.report('keys  ') { 500_000.times { h.keys } }
  x.report('find  ') { indexes.each { |i| h[i] } }
  x.report('insert') { indexes.each { |i| h2[i] = i.to_s } }
  x.report('delete') { indexes.each { |i| h.delete(i) } }
end