in versus include

bench.rb

#!/usr/bin/env ruby
require 'benchmark'
require 'active_support/all'
puts 'in', Benchmark.measure { 90000.in?(1..99000)}
puts 'include', Benchmark.measure { (1..99000).include? 90000 }

gistfile1.txt

in
  0.000007   0.000000   0.000007 (  0.000004)
include
  0.000004   0.000000   0.000004 (  0.000023)

with 1000.times inside the measure, very close

in
  0.000158   0.000018   0.000176 (  0.000173)
include
  0.000181   0.000021   0.000202 (  0.000201)