presence? comes at a cost

bench.rb

require 'benchmark/ips'
require 'active_support/core_ext/object/blank'

find_result = nil

result = Benchmark.ips do |x|
  x.report('==') do |times|
    i = 0
    while i < times
      1 if find_result == nil
      i += 1
    end
  end

  x.report('!') do |times|
    i = 0
    while i < times
      1 if !find_result
      i += 1
    end
  end

  x.report('nil?') do |times|
    i = 0
    while i < times
      1 if find_result.nil?
      i += 1
    end
  end

  x.report('present?') do |times|
    i = 0
    while i < times
      1 if !find_result.present?
      i += 1
    end
  end
end

Benchmark.compare *result

Calculating -------------------------------------
                  ==    114853 i/100ms
                   !    121360 i/100ms
                nil?    114534 i/100ms
            present?    106463 i/100ms
-------------------------------------------------
                  == 33961119.0 (±6.3%) i/s -  168833910 in   4.999349s
                   ! 40137579.4 (±6.8%) i/s -  199273120 in   4.997456s
                nil? 25855563.9 (±7.1%) i/s -  128392614 in   5.000634s
            present? 10784820.4 (±8.0%) i/s -   53550889 in   5.007098s

Comparison:
                   !: 40137579.4 i/s
                  ==: 33961119.0 i/s - 1.18x slower
                nil?: 25855563.9 i/s - 1.55x slower
            present?: 10784820.4 i/s - 3.72x slower