bench.rb

n = 100
puts "Creating a #{n}**3 matrix"

10.times do |i|
  puts "\tRun ##{i}"
  # Array of Arrays
  GC.disable
  time_then = Time.now
  m = Array.new(n) { Array.new(n) { Array.new(n, 0) } }
  time_elapsed = Time.now - time_then
  GC.enable
  GC.start
  puts "Array of Arrays: #{time_elapsed}"

  # Flat Array
  GC.disable
  time_then = Time.now
  m = Array.new(n**3)
  time_elapsed = Time.now - time_then
  GC.enable
  GC.start
  puts "Flat Array: #{time_elapsed}"
end

moon-mruby-result.txt

λ kana ruby → moon-mruby ary_bench.rb
Creating a 100**3 matrix
	Run #0
Array of Arrays: 0.179287
Flat Array: 0.145617
	Run #1
Array of Arrays: 0.164506
Flat Array: 0.144951
	Run #2
Array of Arrays: 0.158388
Flat Array: 0.139434
	Run #3
Array of Arrays: 0.156241
Flat Array: 0.139081
	Run #4
Array of Arrays: 0.157879
Flat Array: 0.138775
	Run #5
Array of Arrays: 0.156714
Flat Array: 0.139297
	Run #6
Array of Arrays: 0.163671
Flat Array: 0.139745
	Run #7
Array of Arrays: 0.158884
Flat Array: 0.14032
	Run #8
Array of Arrays: 0.156603
Flat Array: 0.13958
	Run #9
Array of Arrays: 0.156399
Flat Array: 0.139487

mruby-results.txt

λ kana ruby → mruby ary_bench.rb 
Creating a 100**3 matrix
	Run #0
Array of Arrays: 0.398506
Flat Array: 0.335188
	Run #1
Array of Arrays: 0.373319
Flat Array: 0.335153
	Run #2
Array of Arrays: 0.360811
Flat Array: 0.330656
	Run #3
Array of Arrays: 0.360592
Flat Array: 0.328822
	Run #4
Array of Arrays: 0.360805
Flat Array: 0.333084
	Run #5
Array of Arrays: 0.36057
Flat Array: 0.327735
	Run #6
Array of Arrays: 0.359552
Flat Array: 0.328255
	Run #7
Array of Arrays: 0.35978
Flat Array: 0.331904
	Run #8
Array of Arrays: 0.360244
Flat Array: 0.331811
	Run #9
Array of Arrays: 0.359497
Flat Array: 0.328115

ruby-2.2.2-results.txt

λ kana ruby → ruby ary_bench.rb
Creating a 100**3 matrix
	Run #0
Array of Arrays: 0.010430442
Flat Array: 0.004590283
	Run #1
Array of Arrays: 0.005082562
Flat Array: 0.004056365
	Run #2
Array of Arrays: 0.004972082
Flat Array: 0.001406953
	Run #3
Array of Arrays: 0.004502605
Flat Array: 0.00147162
	Run #4
Array of Arrays: 0.004436948
Flat Array: 0.001421021
	Run #5
Array of Arrays: 0.004456008
Flat Array: 0.001431928
	Run #6
Array of Arrays: 0.004403608
Flat Array: 0.001897751
	Run #7
Array of Arrays: 0.006099313
Flat Array: 0.00143311
	Run #8
Array of Arrays: 0.004403954
Flat Array: 0.001538081
	Run #9
Array of Arrays: 0.004479004
Flat Array: 0.001433924