benchmark ruby rand vs rand(100)

code.rb

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

Benchmark.ips do |x|
  x.report("rand") do
    rand
  end

  x.report("rand(100)") do
    rand(100)
  end
end

Benchmark.memory do |x|
  x.report("rand") do
    rand
  end

  x.report("rand(100)") do
    rand(100)
  end
end