斜辺が1000以下のピタゴラス数を求めるプログラム (ベンチマーク用)

pythagoras.rb

#encoding:utf-8

max = 1000

class Pythagoras
  def initialize(a, b, c)
    @a = a
    @b = b
    @c = c
  end

  def array
    [@a, @b, @c]
  end
end

array = []

(1..max).each do |a|
  (1..a).each do |b|
    (1..b).each do |c|
      if a*a == b*b + c*c
        array << Pythagoras.new(a, b, c)
      end
    end
  end
end

p array.map{|x| x.array}

result

Rubinius:
  rubinius 2.5.2.c145 (2.1.0 50aa7356 2015-04-07 3.5.1 JI) [x86_64-darwin14.1.0]
  ./rubinius/bin/rbx pythagoras.rb  7.38s user 0.13s system 118% cpu 6.318 total

CRuby:
  ruby 2.0.0p481 (2014-05-08 revision 45883) [universal.x86_64-darwin14]
  ruby pythagoras.rb  21.36s user 0.10s system 99% cpu 21.563 total