Ruby's hash sort speed comparison.

gistfile1.rb

# using ruby-2.1.1

require "benchmark"

n = 100_000

hash = { "for" => "sale",
         "to_price" => "1000000",
         "bath" => "0;6",
         "bed" => "0;6",
         "from_price" => "150000",
         "price" => "150000;1000000",
         "bed" => "0;6" }


Benchmark.bm do |x|
  x.report('Using hash.keys.sort method:') do
    n.times do
      new_hash = {}
      hash.keys.sort.each do |key|
        new_hash[key] = hash[key]
      end
    end
  end

  x.report('Using hash.sort.to_h method:') do
    n.times do
      new_hash = {}
      new_hash = hash.sort.to_h
    end
  end
end


# =>
#                                   user     system      total        real
# Using hash.keys.sort method:  0.280000   0.000000   0.280000 (  0.279664)
# Using hash.sort.to_h method:  0.490000   0.000000   0.490000 (  0.492064)