Faker vs. constant performance benchmarks

faker_bm.rb

require 'benchmark'
require 'faker'
require 'securerandom'

n = 5000
Benchmark.bm(26) do |x|
  NUM = 123.freeze
  PASSWORD = "Password!1".freeze
  UUID = SecureRandom.uuid.freeze
  RAND = 1000.freeze

  x.report("faker number:") { n.times do   ; Faker::Number.number(digits: 3); end }
  x.report("constant number:") { n.times do   ; NUM; end }
  x.report("faker password(6):") { n.times do   ; Faker::Internet.password(min_length: 6); end }
  x.report("faker password(15):") { n.times do   ; Faker::Internet.password(min_length: 15); end }
  x.report("faker password(rand(1000)):") { n.times do   ; Faker::Internet.password(min_length: rand(1000)); end }
  x.report("constant password:") { n.times do   ; PASSWORD; end }
  x.report("generate UUID:") { n.times do   ; SecureRandom.uuid; end }
  x.report("constant UUID:") { n.times do   ; UUID; end }

  x.report("rand(1000):") { n.times do   ; rand(100); end }
  x.report("constant 1000:") { n.times do   ; RAND; end }
end