Benchmarking Hashie::Mash

benchmark_hashie_mash.rb

# Benchmark results on 1.9.3p392, OS X, iMac i7 3.4Ghz 
# Rehearsal --------------------------------------------------------
# Hash hit               0.020000   0.000000   0.020000 (  0.024836)
# Mash hit via method    0.330000   0.010000   0.340000 (  0.327954)
# Mash hit via []        0.140000   0.000000   0.140000 (  0.137176)
# Hash miss              0.020000   0.000000   0.020000 (  0.025503)
# Mash miss via method   0.730000   0.000000   0.730000 (  0.730849)
# Mash miss via []       0.140000   0.000000   0.140000 (  0.136285)
# ----------------------------------------------- total: 1.390000sec

#                            user     system      total        real
# Hash hit               0.030000   0.000000   0.030000 (  0.022808)
# Mash hit via method    0.310000   0.000000   0.310000 (  0.309510)
# Mash hit via []        0.140000   0.000000   0.140000 (  0.132961)
# Hash miss              0.020000   0.000000   0.020000 (  0.024958)
# Mash miss via method   0.720000   0.000000   0.720000 (  0.723548)
# Mash miss via []       0.140000   0.000000   0.140000 (  0.131169)

require 'rubygems'
require 'hashie/mash'
require 'benchmark'

N = 100000

hash = {:foo => 'bar'}
mash = Hashie::Mash.new(hash)
Benchmark.bmbm do |x|
  x.report("Hash hit") do
    N.times do
      hash[:foo]
    end
  end

  x.report("Mash hit via method") do
    N.times do
      mash.foo
    end
  end

  x.report("Mash hit via []") do
    N.times do
      mash[:foo]
    end
  end

  x.report("Hash miss") do
    N.times do
      hash[:miss]
    end
  end

  x.report("Mash miss via method") do
    N.times do
      mash.miss
    end
  end

  x.report("Mash miss via []") do
    N.times do
      mash[:miss]
    end
  end
end