enumerable.rb

require 'bench_press'
extend BenchPress

author 'Ken Collins'
summary 'Iterate over rows of array data.'

reps 10_000

ROWS = [
  [1, 'Test', 'Body copy', Time.now],
  [2, 'Hello', 'World', Time.now],
  [3, 'Speed', 'Is important', Time.now]
].freeze

measure "Array#each" do
  ROWS.each do |a|
    a.each_with_index { |v,i| v ; i }
  end 
end

measure "for" do
  for r in ROWS
    r.each_with_index { |v,i| v ; i }
  end
end

measure "Array#each_index" do
  ROWS.each_index do |i|
    ROWS[i].each_with_index { |v,i| v ; i }
  end
end

measure "Array#each_with_index" do
  ROWS.each_with_index do |r,i|
    r.each_with_index { |v,i| v ; i }
  end
end

measure "Array#reverse_each" do
  ROWS.reverse_each do |r|
    r.each_with_index { |v,i| v ; i }
  end
end

measure "Array#map" do
  ROWS.map do |r|
    r.each_with_index { |v,i| v ; i }
  end
end

measure "Array#collect" do
  ROWS.collect do |r|
    r.each_with_index { |v,i| v ; i }
  end
end

measure "while" do
  i = 0
  while i < ROWS.size
    ROWS[i].each_with_index { |v,i| v ; i }
    i += 1
  end
end

measure "Array#size.times" do
  ROWS.size.times do |i|
    ROWS[i].each_with_index { |v,i| v ; i }
  end
end


=begin





=end