Ruby 2.0 native binary search.rb

require 'benchmark'

array = (0..10000000).to_a

benchmark = Benchmark.bm(10) do |x|
  x.report("Ruby 2.0:   ") do
    100000.times { array.bsearch { |e| 7777777 <=> e } }
  end
  require 'bsearch'
  x.report("bsearch gem:") do
    100000.times { array.bsearch { |e| 7777777 <=> e } }
  end
end

#                 user     system      total        real
# Ruby 2.0:     0.180000   0.000000   0.180000 (  0.185011)
# bsearch gem:  0.750000   0.000000   0.750000 (  0.761949)